Showing posts with label Pneumatic seals. Show all posts
Showing posts with label Pneumatic seals. Show all posts

Thursday, 19 December 2013

Innovative and high quality supporting accessories for high end machinery

Hydraulic seals are products that include types such as rod seals, flange packing and U-cups. They are specifically designed for applications that require high pressure such as those of hydraulic cylinders. It is said to have a wide array of orientations and different types. Before going further into the orientation and types of hydraulic seals, here are some things to consider when purchasing such industrial products. The diameters of the outer shaft, inner seal and housing bore should be specified. Thickness and radial cross section should also be included in the list of considerations. Service limits such as operating speed and pressure, vacuum rating and temperature should be dealt with accordingly.

Electromagnetic interference or EMI shielding seals and thermal management issues are common problems among design engineers. Parker is a provider of electrically and thermally conductive materials which offer a wide range of EMI shielding seals and sealing solutions to globally renowned electronics companies.These shielding seals and gaskets assure the performance and maintainability of communications equipment, radar, aircraft, spacecraft, automotive vehicles, computers, fire control systems, telecommunications, medical, consumer and industrial electronics. Typical EMI shielding seals and sealing materials include ferrites, silicone, fluorosilicone, and EPDM.

Darcoid Nor-Cal Seals is an endeavor that is into manufacture of sealing and other accessories for machinery. The company has a comprehensive choice when it comes to adhesives and sealants with all different types covered. Darcoid has on offer a range of different variants of gaskets, sealants, adhesives, o-rings and thermal products and more, to pamper and tune up your machinery and it's efficiency with. A break up into perfection of services,

Darcoid also caters the raw material for the making of Access Door Seals, Dynamic metal seals, Fastener and Fitting Seals, Gask-O-Seals, Integral Seals, Lock-O-Seals, Metal Seals, O-Seals, Pipe Flange Gask-O-Seal, Stat-O-Seals,Thredseal and more of similar type. Darcoid maintains industry leadership by offering innovative, high quality supporting accessories for your high-end machinery.

Darcoid caters to all your sealing requirements. The seals and gaskets come in a wide range with their volume resistance in order to achieve the desired shielding effectiveness. Products are available as non-hardening caulking compounds, silicone or vinyl based sheets as well as conductive adhesives and coatings.

Darcoid paves into various divisions like Adhesives and sealants, composite seals, dynamic seals, EMI shielding seals and gaskets and RFI shielding products, extruded products, gaskets, medical components and equipment, molded shapes, O-Rings, Sanitary and Hygienic seals, semiconductor seals, sheet and roll stock, thermal products divisions. At Darcoid Nor-Cal Seal, the sealing accessories and aids are of a state-of-the-art quality leading to constant innovation of wares and introduction to new products and capabilities.



Thursday, 28 November 2013

High quality seals and good cost value solution for your endeavors

The unique needs of your machinery are identified and every minute point of necessity is taken into consideration in order to render the best services for a safe and hassle free functioning of the machinery. This company provides the best accessories for your machinery so as to help you enhance industrial performance efficiency and make necessary changes to increase standards and your machinery's productivity quotient.
Undertaking the task of enhancing the efficiency of machinery can be a piece of cake with the unique products offered by Darcoid. Rubber and adhesives play a vital role in the manufacturing industry as the products are mainly used for adjoining and sealing purposes which, Darcoid offers the best from a range of products.

Darcoid Nor-Cal Seal is an endeavor that is into manufacturing of Orings, Lip seals and many accessories of the likes. Darcoid Nor-cal Seals, an ISO certified private company, located in Oakland, California has come up with a range of various safety rubber products, machinery supportive accessories and adhesives to compliment and support the usage of machinery.

Basically an Oring is used to block a pathway that fluid or air may escape through. Orings are usually put into a groove to hold them in place and then squeezed between two surfaces. Since Orings can not be made exactly to their dimensions every time, manufactures are allowed to make them within range of their original dimensions. Variations in the rubber compound and in the manufacturing process cause slight variations in the shrink of the material and effect the finished size of the Orings. Several different type of rubber compounds exist on the market today because of the different temperature range, chemical exposures and environments that these sealing components are subjected too. Orings come in many sizes, hardness, elastomer and colors to suit various applications.

Darcoid chauffeurs to the needs of various applications in various industries like the heavy machinery manufacturing units, computer accessories manufacturing units, performance driven applications such as orthopedic supports and the likes. Darcoid also caters the raw material for the making of Access Door Seals, Dynamic metal seals, Fastener and Fitting Seals, Parker products like, Orings, O ring kits, Gask-O-Seals, Integral Seals, Lock-O-Seals, Metal Seals, O-Seals, Pipe Flange Gask-O-Seal, Stat-O-Seals, Thred seal and more of similar type.

Darcoid is also into distribution for top manufacturers of seals, gaskets and rubber products. Darcoid exhibits expertise in supply chain management and value added distribution services, resulting in high quality seals and good cost value solution for your endeavor.

Friday, 22 November 2013

Thermal and chemical resistance of Orings

Oring to its high strength, durability, low maintenance, ease of availability, good conducting properties, metal is used widely in almost every industrial sector. Metal is used in many forms like pipes, sections, wires, rods, sheets, etc. In many of the industries metal pipes or hollow sections are used to convey fluids (gases or liquids) from one place to another.

Just as the function of a sealant is to prevent leakage or to seal any openings there are materials whose purpose is to isolate thermal environments from each other on its two sides. Hot and cold Insulation materials are used to provide a layer of insulation which reduces or minimizes the heat flow. Besides good thermal resistance good hot and cold insulation materials have properties like being inert to a wide range of chemicals (high chemical resistance), physically stable or tough, etc. Depending on the need, a suitable hot and cold insulation material is used to provide thermal barrier.

Hollow seals are used in applications that require the seal to stay in the groove while not overfilling the gland or warping the enclosure lid or door. Hollow ORings consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE O-Rings hollow O-Rings are used wherever the chemical resistance of normal elastomer O-Rings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

Advantages of hollow seals are that they are chemical resistant, a wide range of thermal stability, low permeability and low friction. Hollow seals are used as sealing elements, as energizing elements for hydraulic slipper seals and wipers and thus cover a large number of fields of application. Encapsulated hollow seals consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE O-Rings encapsulated and hollow seals are used wherever the chemical resistance of normal elastomer O Rings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

There are no fields of industry where hollow seals are not used. From an individual seal for repairs or maintenance to a quality assured application in aerospace, automotive or general engineering. Hollow seals are used to seal the joints between two metal parts or to seal any openings. These sealants are used widely in many industrial and commercial areas. Darcoid Nor-Cal Seal is a world class supplier of hollow o-rings and other rubber, sealing elements.

Friday, 1 November 2013

High quality supporting accessories for your high-end machinery

Darcoid is a provider of electrically and thermally conductive materials which offer a wide range of seals like EMI shielding seals and sealing solutions to globally renowned electronics companies.These shielding seals and gaskets assure the performance and maintainability of communications equipment, radar, aircraft, spacecraft, automotive vehicles, computers, fire control systems, telecommunications, medical, consumer and industrial electronics.Typical EMI shielding seals and sealing materials include ferrites, silicone, fluorosilicone, and EPDM.

Whether you need board-level EMI shielding seals and gaskets, a Fabric-over-Foam gasket, or any of a growing number of innovations of traditional Electro Magnetic Interference solutions, Darcoid caters to all your sealing requirements. The EMI shielded seals and gaskets come in a wide range with their volume resistance in order to achieve the desired shielding effectiveness.

At Darcoid Nor-Cal Seal, the sealing accessories and aids are of a state-of-the-art quality leading to constant innovation of wares and introduction to new products and capabilities. Darcoid also caters the raw material for the making of Access Door Seals, Dynamic metal seals, Fastener and Fitting Seals, Gask-O-Seals, Integral Seals, Lock-O-Seals, Metal Seals, O-Seals, Pipe Flange Gask-O-Seal, Stat-O-Seals,Thredseal and more of similar type. Darcoid maintains industry leadership by offering innovative, high quality supporting accessories for your high-end machinery.

The company has a comprehensive choice when it comes to adhesives and sealants with all different types covered. Darcoid has on offer a range of different variants of gaskets, sealants, adhesives, o-rings and thermal products and more, to pamper and tune up your machinery and it's efficiency with. A break up into perfection of services, Darcoid paves into various divisions like Adhesives and sealants, composite seals, dynamic seals, EMI shielding seals and gaskets and RFI shielding products, extruded products, gaskets, medical components and equipment, molded shapes, O-Rings, Sanitary and Hygienic seals, semiconductor seals, sheet and roll stock, thermal products divisions.



Thursday, 24 October 2013

Precision extruded die cut seals and gaskets

Gaskets and seals have always been an integral part of Darcoid Nor-Cal Seal. Gradually, Darcoid's die-cutting capabilities have grown alongside technology, helping them render cutting edge products. Darcoid has the knowledge and expertise to meet your gasket and die-cutting needs, whatever they may be. Darcoid has manufactured for a large variety of high volume applications for quite some time now. The unique process for producing precision extruded and die cut seals provides customers tremendous latitude in design flexibility, and eliminates tooling charges for any ID/OD combination from .030" to 19.000" outside diameters.

Darcoid's seals are made with only "sealing grade" material formulations with the highest possible percentage of polymer for the most effective long-term sealing solutions. Extruded and die cut products are usually supplied as ID/OD tubing type cross-sections, but can also be supplied in a variety of different cross-sections such as square, rectangular and triangular. Custom cross-sections are also available are also delivered by Darcoid Nor-Cal Seals. Temperature is possibly the most important factor in choosing a gasket material. When higher temperatures at the gasket joint need to be sealed, the potential choices are quickly eliminated. If the system operating temperatures approach a gasket materials max. continuous operating temperature threshold, the next best material should be chosen.

Die cut gaskets from a variety of materials are produced on-site at Darcoid Nor-Cal Seal. Gaskets can be produced through a number of manufacturing methods such as “clicker” presses, water jet, continuous die or rotary die cutting. The methodology depends on the material, size, quantity, and other mechanical factors. We help you choose which one is best for your application. Gaskets can also be striped to narrow widths as well as PSA backed. Specialty marking is also available.

Chemical compatibility to the media to be sealed against (including flushes and system cleanouts). There are many different fluids and gases to seal against, and many different choices of gasket materials to seal against them. The internal pressure of the fluid should be a determining factor in choosing a gasket sealing material. If severe cycling or pressures changes occur frequently, a more robust material may be required. Application of this includes all factors such as the number, grade and size of bolts to create compression and the surface areas of the sealed joint. For EMI gaskets, this includes the amount of EMI and RFI shielding required. Darcoid Nor-Cal Seal's die cut gaskets and seals offer long term sustainability, excellent wear performance, complete material traceability and easy installation.

Friday, 4 October 2013

Highest quality rubber sealing components

PTFE is a kind of synthetic polymer material. The main base of PTFE is carbon atom. And the fluorine atom is evenly distributed around the carbon atom and forms the compact protective screen. Therefore, PTFE has the very excellent physical mechanical property. It can not only resist the strong acid, strong alkali and strong oxidant but also can bear high temperature. To some degree, its property surpasses the property of glass, ceramic, stainless steel and gold. Its working temperature ranges from-100 to 100 Celsius degrees.

As a kind of sealing material, PTFE is applied by different ways. The good corrosion resistance, stable physical property and temperature endurance make contribute to its excellent sealing ability. As a result, it is very applicable in the following industries, such as oil, chemical, electric and steel. The applicable media are also in a wide range, including water, oil, acid liquid and other chemical liquid. PTFE seals are typical applications for the PTFE material. As its name implies, PTFE seals are made through cutting the PTFE rod, pipe or plate. The main material is PTFE and so this gasket naturally inherits all features of PTFE. It includes flat gasket, V-gasket, piston ring and ball valve gasket.

In terms of machinery, you really cannot take chances with performance, as a lack of it will certainly reflect badly on manufacturing methods. Whether you're isolating vibration in industrial machinery or creating products for another industry, maintaining your reputation for quality is of paramount importance. In addition, you'll find that using the highest quality rubber components in your products will help increase your reputation. When your customers know they can count on your products, a long-term relationship can be founded, which is an essential consideration for growth and profitability.

Darcoid Nor-Cal Seals is an enterprise that is globally renowned as an endeavor that is into delivering top quality accessories for diverse machinery. Darcoid Nor-Cal seal is a global platform in the industry of mechanical equipment related parts. Darcoid Nor-Cal Seal is the company that is an authorized distributor of the Parker Company and so has the option of taking orders from various consumers along the global arena. This endeavor also hosts a horde of special and high quality Machine and Molded PTFE seals like Piston Seals, Buffer Seals, Seat Seals, Scrapers, Valve Seals and V Packings for various industry requirements like Aerospace, General Fluid Power Industry, Food and Beverage Industry Equipment and Pharmaceutical and Medical sector.



Wednesday, 25 September 2013

Sealing solutions with excellent stability

Modern industrial machinery makes use of rubber as it it an indispensable product. Certain rubber products which are supportive to the functioning of machinery, are mostly used for industrial purposes. Rubber gaskets and seals the accessories that are used in many industries such as, mechanical engineering, aerospace, automotive and the plumbing industry for many kinds of sealing applications like fluid power seals and the likes. Many rubber manufacturers are into production of these supporting accessories for machinery by Darcoid Nor-Cal Seals, a rubber manufacturer, who is into manufacturing of rubber accessories is on the fringe to win the brawl, to emerge as the world leader among ace rubber manufacturing companies.

Fluid power seals from Darcoid Nor-Cal Seals have been designed specifically to complement one another to create high performance systems. For instance, pairing a Darcoid's rod seal with a wiper minimizes fluid leakage and maximizes contamination exclusion. Darcoid's rod seals are designed with knife-trimmed lips to ensure the best possible film breaking. A bi-directional fluid power seal is used in medium to heavy duty hydraulic actuators. A fluid power seal is a two piece design comprised of a standard size rubber square ring energizing a rectangular shaped PTFE cap. The fluid power seals from Darcoid Nor-Cal Seals offers seals and sealing solutions with excellent stability, long wear, low friction and extrusion protection. The seal is commonly used in applications such as agriculture hydraulics, mobile hydraulics, machine tools, and hydraulic presses.

Darcoid Nor-Cal Seals is the world leader in providing the most complete selection of dynamic seals for both OEM and MRO hydraulic and pneumatic applications with our extensive Rod, Piston, Wiper, Wear Ring/Bearing, Backups, O-rings and head seals and all-in-one Integrated Piston products.Darcoid Nor-Cal Seal is the world’s leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets. Darcoid is one source manufacturer and sealing solution partner.The endeavor's innovative technology and valued added services offer its clients a leading edge material development, experienced design and application engineering, quality and outstanding customer service.


Friday, 20 September 2013

Performances of hollow seals and Orings



Hollow seals and O-Rings are used in applications that require the seal to stay in the groove while not overfilling the gland or warping the enclosure lid or door. Hollow o-rings and seals consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE O-Rings hollow O-Rings are used wherever the chemical resistance of normal elastomer O-Rings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

Advantages of hollow O-Rings are that they are chemical resistant, a wide range of thermal stability, low permeability and low friction. Hollow seals are used as sealing elements, as energizing elements for hydraulic slipper seals and wipers and thus cover a large number of fields of application.

Encapsulated hollow O-Rings consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE O-Rings encapsulated and hollow O-Rings are used wherever the chemical resistance of normal elastomer O-Rings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

There are no fields of industry where hollow O-Rings are not used. From an individual seal for repairs or maintenance to a quality assured application in aerospace, automotive or general engineering. Darcoid Nor-Cal Seal is a world class supplier of hollow o-rings and other rubber, sealing elements.

Darcoid Nor-Cal Seal is the manufacturer of various sealing solutions and accessories that aid the performance of machinary like hollow seals, die cut gaskets and spliced orings, EMI shields and more, and a distributor for the top manufacturers of seals, gaskets and rubber products. We are also a expert in supply chain management and value added distribution services, resulting in high quality seals and good cost value sealing solutions for your endeavour.

Friday, 13 September 2013

Standard and custom made hydraulic cylinder seals


Pneumatic Seals are designed for low operating pressure. Pneumatic Seals are vital in machinery. Pneumatic Seals may be used for rotary and reciprocating motion. Common pneumatic seals include rod seals, piston seals, symmetrical seals, V-Rings, wipers, rotary shaft seals, wear rings, static seals, back-up rings, o-rings, buffer rings, u-cups and gaskets.

Pneumatic seals are any of a class of seals used in applications including rotary or reciprocating motions. They are often used in pneumatic cylinders and valves. Pneumatic seals require minimal lubrication when exposed to air in order to create a tight seal. Pneumatic seals may also be exposed to high operating speeds at which the pressure is not high. The difference between pneumatic seals and hydraulic seals is pressure. Pneumatic seals typically have a pressure range of 1 to 150 pound-force per square inch (psi), while hydraulic pressure can reach greater than 10,000 psi.

A typical Hydraulic seal consists of an integral PTFE ring and elastomer ring, providing the properties of an elastomeric ring with a rigid, low friction, Teflon coated (PTFE) working face. Hydraulic seals can have a variety of different cross sections. Hydraulic seals include shaft outer diameter or seal inner diameter, housing bore diameter or seal outer diameter, axial cross section or thickness, and radial cross section.

There are two categories for these industrial products. These are dynamic and exclusion seals. A dynamic seal is one that is used in order to separate a fluid from possible contaminants. It is utilized in order to put a gap between moving and non-moving surfaces like those found in piston ring applications. When considering dynamic seals, it is important to focus into a variety of dimensions like inside diameters, outside diameters, axial cross section, radial cross section and housing bore.

Exclusion seals are those that are used in order to separate contaminants from machine bearings. They remove any debris from moving shafts. These hydraulic seals can be sub-classified further into V-ring, scrapers and wipers. V-rings are those made out of rubber while wipers are those with lip seals that are flexible. Scrapers are those that contain scraping edges used in the process of removing contaminants from the bearings.

Darcoid Nor-Cal Seal is a leading distributor of hydraulic and pneumatic seals. Darcoid Nor-Cal Seal has been providing standard and custom-made hydraulic cylinder seals for a wide range of applications and industries for a long time as an industry leader and has been providing hydraulic and pneumatic seals for the Aerospace and Military markets where quality is of utmost importance.

Friday, 6 September 2013

Different types of rubber custom molded seals

To isolate vibrations, to dampen oscillations and more, it is rubber that regulates these tasks, especially gaskets, orings, seals and the likes. However, there is no default size, like say, 'one size fits all' to these solutions. So, custom molded seals process offer far better performance, longer lasting solutions and considerable savings. When it comes to custom molded seal, durability is everything. When you choose a prefabricated rubber component, there are many things that can go wrong. For instance, while it might be trimmed to fit your application, it is not custom made for your needs, so the fit might be off. A poorly fitted seal will be subjected to greater wear, reducing component life and increasing your costs.

Another consideration in durability is the type of rubber used. When you have custom rubber molded seal made specifically for your application, you can rest assured that the right type of rubber has been used. You have no such assurance with a preformed solution. Different types of rubber custom molded seals have varying degrees of heat tolerance. They also resist the effects of oil and other corrosive substances to different degrees. Chances are good that your application can benefit from one type more than another. Along with better durability, a custom made rubber component offers you better performance. While you can purchase pre-made isolators, pads and other products, having one made specifically to fit your application is a far better decision.

This allows you to match the exact dimensions of your application. When you think about it, you really cannot take chances with performance, as a lack of it will certainly reflect badly on manufacturing methods. Whether you're isolating vibration in industrial machinery or creating products for another industry, maintaining your reputation for quality is of paramount importance. In addition, you'll find that using the highest quality rubber components in your products will help increase your reputation. When your customers know they can count on your products, a long-term relationship can be founded, which is an essential consideration for growth and profitability.

It is imperative that you work with the right custom molded seal manufacturers. Finding the right company can be difficult. Darcoid has on offer a wide range of custom molded seals. With Darcoid Nor Cal Seal, which has experience in various areas of expertise, you can rest assured that your own rubber components will be manufactured to exacting specifications, by experienced craftspeople.



Friday, 23 August 2013

Reliable and sustainable doughnut shaped O-rings

O-rings are a kind of doughnut shaped rubber seal ring with a circular section used for sealing solutions. Owing to its round section, it is also called O-shaped seal ring. This ring is one of the common seal elements in the fluid pressure and gas pressure transmission system. It is mainly used in the static seal and the alternative motion seal.

O-rings have high tolerance to radiation as well as high vacuum, and are generally used for flanged applications. Ideally, O rings are placed in both open and closed grooves and axial pressure is applied between two parallel surfaces. When purchasing an O-ring, the factors like its inner diameter and lead wire diameter, section diameter of the section gasket, the number depicting its standard and its year of manufacture have to be kept an eye over.

An O-ring is mainly applied in the static seal and the alternating motion seal. If it is used in the rotating motion seal, it will be limited by the seal equipment with low rotating speed. On basis of the material of this seal ring, it can have the good seal effectiveness and at the same time it can reduce the shock in some harsh environments, such as chemical liquid, oil, acid liquid and many more of the likes.

Whether it's the flow of liquid or air, Orings are exceptionally effective in making the seal highly efficient. The quality of the seal plays a pivotal role and the manufacturers must take extra care while choosing the raw materials and production techniques. Oring to the unique features, an O-ring is widely used in a lot of industries, such as machine tool, boat, automobile, metallurgical machinery, chemical machinery, engineering machinery, building machinery, plastics, agriculture and different instruments. With high tech solutions and advanced methods, the kind of sealing devices from Darcoid Nor-Cal Seal are immensely satisfactory and offer desired results every time the product is used for varied industrial usage.

Darcoid Nor-Cal Seal provides O-rings which are highly cost effective, have high production rate sourcing to the highest technologies of perfluoronated elastomers like Parofluor, Parofluor ULTRA, Kalrez, Chemraz, Simriz and Perlast. A single O-ring can play an important role in two directions' seal and is applicable for different seal media such as oil, water, gas, chemical medium and other mixed media. The uniqueness of these O-rings from the house of Darcoid Nor-Cal Seals makes the product reliable and sustainable.


Friday, 2 August 2013

Seals that are fabricated with tight tolerance

Hollow orings are used as sealing elements, as energizing elements for hydraulic slipper seals and wipers and thus cover a large number of fields of application. Hollow orings offer a low closure force alternative to solid orings. As required for many lids and doors, hollow orings are used in applications that require the seal to stay in the groove while not overfilling the gland or warping the enclosure lid or door. Hollow orings consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE orings hollow orings are used wherever the chemical resistance of normal elastomer orings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

Hollow orings are chemical resistant, a wide range of thermal stability, low permeability and low friction. Hollow orings are especially useful for these applications. Enclosures that use flat-panel sealing are not typically fabricated with tight tolerances and are often made from thin metal or plastic. And large enclosures are more susceptible to leakage due to tolerance-gap runout along the sealing perimeter. Low closure force may also be desirable to decrease the loading on hinges and fasteners.

Encapsulated hollow seals consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE Orings encapsulated and hollow seals are used wherever the chemical resistance of normal elastomer Orings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

There are no fields of industry where hollow seals are not used. From an individual seal for repairs or maintenance to a quality assured application in aerospace, automotive, pharmaceuticals or general engineering. Darcoid Nor-Cal Seal is a world class supplier of hollow seals and other rubber, sealing elements.

All industries right from automotive, mechanical, pharma and many other industries choose hollow seals as well as hollow orings for their utility in the associated area. With years of experience and first rated facilities provided by Darcoid Nor-Cal Seals, their sealing solutions have witnessed tremendous rise in their popularity. The hollow orings and hollow seals, apart from parker orings are the most preferred options for engineering professionals across the world for all their sealing demands.

Friday, 5 July 2013

Uses of parker o rings in multiple industry sectors


O-rings are round shaped rings made out of elastomeric compounds that comprises of natural or synthetic rubber. With innovative designing and impeccable engineering, Parker offers excellent O-rings for its customers across the world. Parker O-rings like all other O-rings are used for sealing. These are excellent for preventing various kinds of fluids/liquids or gas loss. These O-rings has the potential to function both as a static as well as a dynamic seal. As a static seal, it is immovable and is used simply for containing pressure or maintaining a vacuum. On the other hand as a dynamic seal it has reciprocating capabilities.

The Parker O-rings are the most preferred options for engineers across the world for all their sealing needs. This is because these are dependable, safe and long-lasting. At present, these are used in industry sectors ranging from automotive to fluid power to semiconductor processing.

Parker o-rings also come in different customized varieties as per their inner diameter: its cross-section diameter: material composition and hardness. And the only factor that is responsible for this is the compression which determines the O-Ring cross section diameter. It is to be mentioned here that the inner diameter of O-Ring should be similar to the inner diameter of the groove: so that it can get stretch and stick to the groove.

There are many uses of parker o rings in multiple industry sectors. They are user friendly and require no smearing or re tightening, once they are installed. Unlike piston seals they require very little room and very light weight. Additionally, they can be recycled and reused if maintained properly and hence they are cost effective sealing solutions even for high performance applications.

Parker O rings are found to be used in cars, construction equipment, heavy duty trucks, refrigeration and air conditioning components, commercial and military aircraft, pharmaceuticals, oil and natural gas rigs, kitchen and bath fixtures, surgical instruments, fuel handling equipment and drug delivery devices. All industries right from mechanical, automotive, pharmaceuticals, and many more choose Parker O-rings for their usability. With years of experience and first rated facilities, Parker O-rings have witnessed tremendous rise in their popularity. Darcoid Nor-Cal Seal caters to all sealing needs with a diverse range of sealing solutions and the types of seals available include Teflon Backup Rings, Hydraulic Seals, and Piston Seals et cetera.

Friday, 28 June 2013

Encapsulated hollow O-Rings

Hollow O-rings are a feasible solution in instances where standard O-rings cannot be used. Hollow O-Rings offer a low closure force alternative to solid O-Rings. As required for many lids and doors, hollow O-Rings are used in applications that require the seal to stay in the groove while not overfilling the gland or warping the enclosure lid or door.

These O-Rings consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE O-Rings hollow ORings are used wherever the chemical resistance of normal elastomer O-Rings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

Advantages of hollow O-Rings are that they are chemical resistant, a wide range of thermal stability, low permeability and low friction. The hollow type of O-Rings are used as sealing elements, as energizing elements for hydraulic slipper seals and wipers and thus cover a large number of fields of application.
Encapsulated hollow O-Rings consist of an elastomer inner ring and a seamless sheath which surrounds the elastomer ring. Similar to PTFE O-Rings encapsulated and hollow O-Rings are used wherever the chemical resistance of normal elastomer O-Rings are not sufficient. The required elasticity is provided by the elastomer ring, the chemical resistance by the seamless sheath.

There are no fields of industry where hollow Orings are not used. From an individual seal for repairs or maintenance to a quality assured application in aerospace, automotive or general engineering. Darcoid Nor-Cal Seal is a leading distributor of all kinds of sealing solutions. Darcoid Nor-Cal Seal has been providing standard and custom-made seals, gaskets, orings and more kinds of sealing aids for a wide range of applications and industries for a long time as an industry leader and has been providing Hydraulic Seals for the Aerospace and Military markets where quality is of utmost importance.

Darcoid Nor-Cal Seal is a world class supplier of hollow o-rings and other rubber, sealing elements.Darcoid Nor-Cal Seals has on offer a wide range of custom sealing solutions. With Darcoid, which has experience in various areas of expertise, you can rest assured that your own rubber components will be manufactured to exacting specifications, by experienced craftspeople.With high tech solutions and advanced methods, the kind of sealing devices from Darcoid Nor-Cal Seal are immensely satisfactory and offer desired results every time the product is used for varied industrial usage.

Friday, 24 May 2013

Unique and effective EMI gaskets and seals

          The Electro Magnetic Inference shielding seals have proved its immense worth in the electronic industries. Today, huge challenge is faced when it comes to designing and manufacturing of electronic devices or equipments for the consumer or business markets. With increase in demand and need for perfect devices complexities have increased as these devices are more inclined to electromagnetic interference. With advent of Electromagnetic shielding or EMI these complexities have been resolved but has not so far proved its worth. These shields usually implemented in a design isolate component or section of a device from one another and therefore need of these gaskets are vital.

EMI shielding seals or the Electro Magnetic Inference shielding seals are highly reliable in performance and ensure effective productivity. Incorporated between the shield and mating surface of the devices, they do wonders. While meeting compliances of EMI requirements these gaskets are of great benefit. Cost effective in nature they can be used as basic method of saving money while manufacturing a system. These unique and effective gaskets not only maximize EMI or RFI shielding but it is also helpful in reducing the number of fasteners or screws which comply the requirements. These conductive gaskets serve as an environmental seal to protect dust and moisture.
EMI shielding seals are best for controlling undesired electromagnetic energy and radio frequency interference from disrupting or radiating from electronic devices. Their availability in different shapes, sizes and configurations make them highly demandable.

The Electro Magnetic Interference shielded gaskets and seals come in a wide range with their volume resistance in order to achieve the desired shielding effectiveness. Products are available as non-hardening caulking compounds, silicone or vinyl based sheets as well as conductive adhesives and coatings.

Darcoid Nor-Cal Seal is into supplying world class EMI shielding Gaskets and Seals, O-Rings, Molded Rubber Parts, EMI or RFI Shielding products like Adhesives, Sealants, Conductive Compounds, Conductive Elastomer Gaskets, Conductive Tapes and laminates, Conductive Grounding Tabs, Metal EMI products, O-Rings and D-Rings, Shielded Windows, Shielded EMI Vents, Thermal Grease & Gap fillers, Wave Guides, Wire Mesh Gaskets and many more. Darcoid Nor Cal Seal is a globally renowned endeavor that provides an alternative to metallic coating of parts and other methods utilized for Electro Magnetic Inference shielding, while delivering a reliable sealing solutions. The Electro Magnetic Interference shielding seals or the EMI shielding seals come in a wide range with their volume resistance in order to achieve the desired shielding effectiveness. The Electro Magnetic Inference shielding seals are available as non-hardening caulking compounds, silicone or vinyl based sheets as well as conductive adhesives and coatings. Electro Magnetic Inference shielding seals for a variety of electronic applications.

Friday, 10 May 2013

High purity PTFE seals

High purity plastic valves and PTFE seals are made from PTFE, PVDF and other high purity plastics. These types of valves are produced by specialty plastic fabricator manufacturers for use in severe and critical service applications for the Pharmaceutical, Defense, Alternate Energy, Semiconductor, Medical and Chemical industries, to remotely control fluid flow. Since these products, including PTFE seals, are most often utilized in a corrosive laboratory environment or clean room automation environment, the high purity plastics of construction ensure the best results against corrosion and their chemical resistances offers long life within the application. Custom fluid control products made from polytetrafluoroethylene (PTFE) and other industrial plastics can be found in a wide variety of specifications to meet the many possible applications and can often be tailor-made to a customer's particular requirements.

PTFE seals are used to remotely control fluid flow. Their use is becoming increasingly popular in a wide variety of industrial applications thanks to their relative simplistic nature and affordable installation cost. With an enormous range of high purity plastic valves on the market, factories and plants throughout the industrial sector are easily able to find the right valve that meets the exact specifications of their intended use.

PTFE seals and valves are electrically actuated to either their open or closed position. The valve components work by allowing or restricting liquid flow depending on whether or not they are subject to an electrical current. The trigger device is normally an electromagnet coil which activates when fed an electric current, attracting a plunger or other valve stem component to changing the state of the mechanical device, this in turn allows or prevents liquid flow. When the electromagnet is deactivated, the plunger is returned to its original position typically by means of a return spring.

Darcoid’s selection of products is the broadest offering in the industry for hydraulic and PTFE sealing systems. Darcoid Nor-Cal Seals is an enterprise that is globally renowned as an endeavor that is into delivering top quality accessories for diverse machinery. Darcoid Nor-Cal seal is a global platform in the industry of mechanical equipment related parts. Darcoid Nor-Cal Seal is the company that is an authorized distributor of the Parker Company and so has the option of taking orders from various consumers along the global arena. This endeavor also hosts a horde of special and high quality Machine and Molded Teflon seals like Piston Seals, Buffer Seals, Seat Seals, Scrapers, Valve Seals and V Packings for various industry requirements like Aerospace, General Fluid Power Industry, Food and Beverage Industry Equipment and Pharmaceutical and Medical sector.

Friday, 3 May 2013

Customized quad rings

Quad rings like all other O-rings are used for sealing. These are excellent for preventing various kinds of fluids/liquids or gas loss. These O-rings has the potential to function both as a static as well as a dynamic seal. As a static seal, it is immovable and is used simply for containing pressure or maintaining a vacuum. On the other hand as a dynamic seal it has reciprocating capabilities. They are doughnut shaped and are generally molded from an elastometer compounds like synthetic or natural rubber. Among its various application areas are mechanical setups where they prevent flow of air and fluid through sealing. They are usually fixed to cavities or: grooves to achieve all kinds of resolutions in sealing as high as 1000 PSI. In fact, these O-rings can endure temperatures ranging from -200 degrees Celsius to +250+ degrees Celsius.

The quad rings are the most preferred options for engineers across the world for all their sealing needs. This is because these are dependable, safe and long-lasting. Today, these are used in industry sectors ranging from automotive to fluid power to semiconductor processing. You can find quad rings in passenger cars, construction equipment, heavy duty trucks, refrigeration and air conditioning components, commercial and military aircraft, pharmaceuticals, oil and natural gas rigs, kitchen and bath fixtures, surgical instruments, fuel handling equipment and drug delivery devices. Apart from the standard sizes, quad rings also come in different customized varieties as per their inner diameter: its cross-section diameter: material composition and hardness. And the only factor that is responsible for this is the compression which determines the O-ring cross section diameter. It is to be mentioned here that the inner diameter of O-ring should be similar to the inner diameter of the groove, so that it can get stretch and stick to the groove.

With the huge demand for quad rings, Parker has also come up with a novel idea of developing customized O-rings of nearly infinite size range as per the requirements of individual clients. Most of the authorized distributors of the quality accessories have this option of taking orders from various consumers. However, it is completely the prerogative of the customer to determine whether such data and specifications are suitable and sufficient for a particular application. The customer should also be able to foresee its applicability in components or systems. Darcoid Nor-Cal Seals supply the best parker O-rings. This globally recognized endeavor that is into supply of gaskets, sealants and sealing solutions, Darcoid Nor-Cal Seals is an excellent source for superior grade O-rings and gaskets. From the beginning to the final stage of production these suppliers ensure you lend supreme material consistency to your needs.

Friday, 12 April 2013

Deflected wide range of seal geometries

A lip seal is a rotary seal incorporating a deflected lip seal geometry. Anti-rotational devices such as flanges and O-rings are often utilized to prevent the seal from rotating with the shaft. Standard and custom sizes are available with a wide selection of PTFE materials. Lip seals are suitable for sealing corrosive and abrasive media. A wide range of geometries and materials are available, depending on specific application requirements. Lip seals are often used on motors and compressors and other components with high speed rotary shafts due to their ability to resist wear even while pressurized.

The most common lip shape is the chamfered or back-beveled design and is available with the V and C Series spring types. This design allows for ease of installation and permits lubrication to nest under the lip and feed through in reciprocating dynamic applications. The result is a microscopic film of lubrication that increases seal and hardware service life. Since the footprint (contact point) of a chamfered lip is a single point, all of the sealing force is concentrated on that point, yielding the highest sustainability and lowest friction.

Applications often involve medias with abrasive particles that can get caught between the seal lip and the mating hardware. This increases wear to both the seal and the mating surface. To prevent particles from accumulating, the scraper lip design is available with all three spring types. The scraper lip contact point is positioned directly over the load point of the spring in each design for maximum scraping action. The scraper lip can be positioned on the ID, OD or both. The scraper lip also stays in place better in a stepped gland where the step is not very large.

The beaded shape contacts the surface in much the same way as an O-ring, and is available with the V and H Series spring types. Similar to the chamfered lip, it is easy to install and helps to lubricate the reciprocating sealing surface. In fact, the beaded lip yields a film of oil that is slightly thicker than that of a chamfered lip, making it advantageous for applications with rapid reciprocating motion. Darcoid Nor-Cal Seal is an excellent supplier of lip seals.

Oring to its unique features, it is widely used in a lot of industries, such as machine tool, boat, automobile, metallurgical machinery, chemical machinery, engineering machinery, building machinery, plastics, agriculture and different instruments. Darcoid Nor-Cal Seal provides O-rings which are highly cost effective, have high production rate sourcing to the highest technologies of perfluoronated elastomers. The uniqueness of products like lip seals and O-rings from the house of Darcoid Nor-Cal Seals makes the product reliable and sustainable.

Friday, 5 April 2013

Orientations and different types in hydraulic seals

            
                    There are plenty of tools and equipments that are required to carry out industrial and manufacturing processes. The hydraulic seals are one such useful tool that can be used for a number of different purposes. There are, in fact, different hydraulic actions, and each of these actions requires the usage of specially designed tools. These seals are designed to assist in transferring power from a hydraulic system to the linear motion by containing the oil for the pressure. If the oil is not controlled, the pressure within the system will pass, and this in turn, will result in the failure of the entire system. In addition to that, these seals can also keep away the dirt from the system, by means of which the entire hydraulic action remains efficient.

Hydraulic seals are products that include types such as rod seals, flange packing and U-cups. They are specifically designed for applications that require high pressure such as those of hydraulic cylinders. It is said to have a wide array of orientations and different types. Before going further into the orientation and types of hydraulic seals, here are some things to consider when purchasing such industrial products. The diameters of the outer shaft, inner seal and housing bore should be specified. Thickness and radial cross section should also be included in the list of considerations. Service limits such as operating speed and pressure, vacuum rating and temperature should be dealt with accordingly. There are various sealing directions for hydraulic seals.


The first on the list is called a rod seal. A rod seal is a type of radial seal that is fit specifically into the housing bore. The sealing lip is found in contact with the shaft. The second type is known as the Piston seal. This is yet another type of radial seal and is a variation of the rod seal. Instead of the sealing lip found in contact with the shaft, the lip goes in contact with the housing bore. It is in the shaft where the seal is pressed accordingly. The other types of sealing orientations are symmetric and axial seals. A symmetric seal, as the concept implies, work symmetrical or equal to the rod and piston seals. The axial seal on the other hand, goes in contact or in axis with the housing component.

There are two categories for these industrial products. These are dynamic and exclusion seals. A dynamic seal is one that is used in order to separate a fluid from possible contaminants. It is utilized in order to put a gap between moving and non-moving surfaces like those found in piston ring applications. When considering dynamic seals, it is important to focus into a variety of dimensions like inside diameters, outside diameters, axial cross section, radial cross section and housing bore.



Exclusion seals are those that are used in order to separate contaminants from machine bearings. They remove any debris from moving shafts. These hydraulic seals can be sub-classified further into V-ring, scrapers and wipers. V-rings are those made out of rubber while wipers are those with lip seals that are flexible. Scrapers are those that contain scraping edges used in the process of removing contaminants from the bearings. Darcoid Nor-Cal Seals is an endeavor that is into manufacture of sealing and other accessories for machinery. Darcoid Nor-Cal Seals is an endeavor that is into manufacture of sealing and other accessories for machinery. 
 

Friday, 22 March 2013

Composite pneumatics seals

Pneumatic seals are a device that restricts the escape of air or the entrance of foreign materials in a pneumatic application such as a cylinder. Pneumatic Seals are designed for low operating pressure. Pneumatic Seals are vital in machinery. Pneumatic Seals may be used for rotary and reciprocating motion. Pneumatic cylinders typically demand higher operating speeds and lower friction pneumatic seals. Common pneumatic seals include rod seals, piston seals, symmetrical seals, V-Rings, wipers, rotary shaft seals, wear rings, static seals, back-up rings, o-rings, buffer rings, u-cups and gaskets. Pneumatic seals can either be single or double acting. Single acting pneumatic seals are used for one axial direction only. Double acting pneumatic seals are used in both directions for a reciprocating motion. Pneumatic seals require minimal lubrication when exposed to air in order to create a tight seal.

Pneumatic seals may also be exposed to high operating speeds at which the pressure is not high. Piston seals, rod seals, flange packings, u-cups, and vee-cups are a few sealing designs that take advantage of pneumatic seals. The difference between pneumatic seals and hydraulic seals is pressure. Pneumatic seals typically have a pressure range of 1 to 150 pound-force per square inch (psi), while hydraulic pressure can reach greater than 10,000 psi. Pneumatic seals can be made of a variety of materials like Polyurethane, Nitrile, Viton, Silicone, EPDM and some types of PTFE. A pneumatic seal's sealing orientation can be internal as with a rod seal, external as with a piston, symmetrical, or axial. With internal pneumatic seals, a housing bore surrounds the seal and the sealing lip touches the shaft. This seal requires very little lubricant. With external piston pneumatic seals, the seal surrounds a shaft and the sealing lip touches the housing bore. This system requires more lubrication. Symmetric pneumatic seals are the same on both sides, and axial pneumatic seals fit axially against the housing. In both cases, however, the seals are used externally and require more lubrication.

Sometimes, composite seals are used as pneumatic seals. Composite seals are seals composed of two or three different materials. Therefore, pneumatic seals are often found in products requiring one seal for many parts. A PTFE ring and an elastomer ring are often used in this situation. NASA uses this technology in their rocket systems. Composite pneumatic seals are also used in the diesel engines for trucks. Rotary applications need only one pneumatic seal. This seal is considered to be single acting because it can seal in one axial direction while the application is moving. On the other hand, a reciprocating application requires two pneumatic seals, or double acting seals. In this case, one seal is needed for each of the directions. Double acting pneumatic seals are more complicated than single acting ones. 
 
Darcoid Nor-Cal Seals is an ace supplier of sealing solutions and accessories. Darcoid supplies a number of seals, wear rings and scrapers / wipers specifically engineered for pneumatic applications, where cylinders and valves are actuated by air. Pneumatic seals operate in dynamic applications, often at high speeds, generally with rotary or reciprocating motions.