Thursday 20 December 2012

Quality and superior sealing solutions

Sealing requirements can be fulfilled with spectrum of options.which might vary as per specific usage. Parker O-rings sealing solutions bring out the best of sealing options available. As different industries look for diverse variation, there are options to fulfill their demand. Parker O-rings are the finest type available. These Parker O-rings are known for their quality and superior sealing abilities.


Whether it's the flow of liquid or air, Parker O-rings 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. 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.


Parker O-rings are round shaped rings made out of elastomeric compounds that consists of natural or synthetic rubber. With innovative designing and impeccable engineering, Parker offers these excellent Parker O-rings to suit the needs of its customers all across. This is because these are dependable, safe and long-lasting.


These Parker O-rings are being widely in use in industrial sectors ranging from automotive to fluid power to semiconductor processing. Parker O-rings are generally being 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 and many more applications.

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 provided by Darcoid Nor-Cal Seals, their Parker O-rings have witnessed tremendous rise in their popularity and are the most preferred options for engineers across the world for all their sealing needs.

Darcoid Nor-Cal is an endeavor that is into accessories for machinary, especially resins and seals and one of the seals that Darcoid Nor-Cal is specialized with is the Parker orings, used in machinery like reciprocating pumps, the internal combustion engine, aviation landing gear, vehicle suspension systems and so on; the list is endless.

Thursday 13 December 2012

Industrial parker seals

Sealing requirements can be fulfilled with spectrum of options. The options vary as per specific usage. If you are facing problems with your sealing system and sealing solutions from Parker are the best available bets when it comes to seals and sealing solutions. As different industries look for diverse variation, there are options to fulfill their demand. Whether it's the flow of liquid or air, Parker seals 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.


Parker seals
With high tech solutions and advanced methods, the kind of sealing devices manufactured are immensely satisfactory and offer desired results every time the product is used for varied industrial usage. With innovative designing and impeccable engineering, Darcoid Nor-Cal Seal offer excellent Parker seals and quality sealing solutions for its customers across the world. All industries right from mechanical, automotive, pharmaceuticals, and many more choose Parker seals for their usability.


With years of experience and first rated facilities, Parker seals and sealing solutions have witnessed tremendous rise in their popularity. There are other types of seals available that includes Teflon Backup Rings, Hydraulic Seals, and Piston Seals etc. At the time of high pressure,Teflon Backup Rings are used along with Parker seals for better sealing system. Be it high pressure or higher temperature, these backup rings work wonders. Darcoid Nor-Cal Seal provides top quality Parker seals to such a vast variety of technologies and this means that their designs are cutting edge, and can cater to the most demanding needs of a customer and system requirements. Parker seals are high in quality and they help in carrying out seamless sealing operations. They are almost indispensable in all kinds of sealing tasks.


Darcoid Nor-Cal Seal is an endeavor that is into meeting the needs of sealing and sealing solutions of various technologies adapted by its customers at a global range. Darcoid Nor-Cal Seal aptly meets its customer's needs in motion and control by providing the broadest range of products available from any single supplier, supported by expertise in nine majored technologies like hydraulics, pneumatics, electromechanically, filtration process control, fluid and gas handling, sealing and shielding and climate control. 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.

Thursday 6 December 2012

Standard sizes of Orings

An Oring is a solid-rubber seal shaped like a doughnut or torus. When compressed between mating surfaces, an Oring blocks the passage of liquids or gases. Darcoid Orings are available in a wide range of standard and non-standard sizes that are suitable for nearly all sealing applications. Two dimensions describe the size of an Oring: its inside diameter (ID) and its cross-sectional diameter (CS). Orings first became popular during World War II. One of the early standards, AN6227, contained only 88 sizes. As the usefulness and flexibility of the Oring became apparent, additional standards were developed to expand the sizes available to the engineers of the day. Today, AS-568, containing 379 sizes, is considered to be the Oring industry's standard. At Darcoid Nor-Cal Seals, you will find 26 sizes added to the 400 series alone.

There are 369 standard sizes of Orings with inside diameters ranging from 0.029 to 25.940 inches and cross sections ranging from 0.040 to 0.275 inch. Standard sizes are available in five popular cross-sectional diameters (0.070, 0.103, 0.139, 0.210 and 0.275 inch). Each Oring size is identified by a "dash number." Each Darcoid Nor-Cal Seals' "dash number" is the same as Aerospace Standard AS568B, Aerospace Size Standard for Orings. Those designations are used throughout the Oring industry.In addition, Darcoid Nor-Cal Seals also offers all 20 sizes of boss seals used for sealing straight-thread tube fittings on a boss. When pressed between two mating surfaces, Orings block the passage of liquids or gases. Orings can form a static or dynamic seals.

Orings
A static seal is where the Oring does not move and is used simply for containing pressure or maintaining a vacuum. Dynamic seals can be reciprocating (like a piston and cylinder), or rotating (shaft rotating in a housing). Axial squeeze and radial squeeze are two methods for applying an Oring. An axial squeeze is when the ring is compressed parallel to a line drawn through the center or axis of the ring. In a radial squeeze the ring is compressed between the internal diameter (ID) and overall diameter (OD). Also, a boss seal is an Oring, however it just doesn't fit the standard sizes for an Oring. A boss is a cylindrical projection on a casting or forging. The end of that projection is machined to provide a flat, smooth surface for sealing. Straight threads used with Orings provide a better seal than tapered threads used alone. Darcoid Nor-Cal Seals offers Orings in all 369 standard sizes and has hundreds of molds for non-standard sizes.

Thursday 29 November 2012

Types of Lip seals

Hydraulic and lip seals 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 lip 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.

Lip seals
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.

Darcoid Nor-Cal Seal is an excellent supplier of lip seals. Darcoid has on offer a wide range of custom molded seals. 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.

Thursday 22 November 2012

Energizing Hollow O-rings

Gaskets, hollow O-rings, Seals can be made from Solid or Hollow rubber extrusion profiles. 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.Hollow O-rings, gaskets, seals can be used in non standard groove or grooves with irregularity. Hollow O-Rings 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.

Hollow O-rings
ll standard hollow Orings come in are sized by the "AS568-" system, after the dash is a series of three number that determines the physical size of the O-ring. There are three parts of the O-ring that are measured to determine its size: the outside diameter, inside diameter and cross section or width. Finding the proper replacement O-ring is important to ensure a proper fit and seal of the component the O-ring is attaching to.

Advantages of hollow ORings are that they are chemical resistant, a wide range of thermal stability, low permeability and low friction. Hollow 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.



Hollow ORings 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. Hollow O-rings from Darcoid Nor-Cal Seals and are available in a wide range of variants. These hollow o-rings and gaskets from Darcoid Nor-Cal Seal have gained a widespread acceptance and are used extensively in many industries, including automotive, off-road, diesel engines, medical and numerous industrial applications.

Thursday 15 November 2012

Usage of Parker Orings in various industrial sectors

Different industries look for diverse variations of sealing solutions and there are many options to fulfill the demand. Parker Orings are the finest type of sealing options available. Parker Orings are known for their quality and superior sealing abilities. Whether it's the flow of liquid or air, these sealing solutions 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. With high tech solutions and advanced methods, the kind of sealing devices from Darcoid Nor-Cal Seal are immensely purpose fulfilling in nature and offer desired results every time the product is used for varied industrial usage.

Parker Orings are round shaped rings made out of elastomeric compounds that consists of natural or synthetic rubber. With innovative designing and impeccable engineering, Parker offers these excellent Parker Orings to suit the needs of its customers all across. This is because these are dependable, safe and long-lasting.

These Parker Orings are being widely in use in industrial sectors ranging from automotive to fluid power to semiconductor processing. Parker Orings are generally being 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 and many more applications.
Parker Orings
All industries right from automotive, mechanical, pharma and many other industries choose Parker Orings for their utility. With years of experience and first rated facilities provided by Darcoid Nor-Cal Seals, their Parker Orings have witnessed tremendous rise in their popularity. The Parker Orings are the most preferred options for engineering professionals across the world for all their sealing demands.

Thursday 8 November 2012

Wide varieties of Square cut O-rings and gaskets

Square cut O-rings and gaskets are circular lathe cut seals with square cross section. The square cut gaskets and o-rings are perfect replacement for standard O-Rings in most static and some dynamic applications. Darcoid Nor-Cal Seal is the exclusive manufacturer of square cut o-rings and gaskets. These square cut gaskets and o-rings come as Tetra Seals from Darcoid Nor-Cal Seals and are available in a wide variety of elastomeric compounds. These square cut o-rings and gaskets from Darcoid Nor-Cal Seal have gained a widespread acceptance and are used extensively in many industries, including automotive, off-road, diesel engines, medical and numerous industrial applications.

The product extensively from the house of Darcoid Nor-Cal Seal suits perfectly the need for high quality, economical, static seals used in industries like automotive, medical, and many other engineering applications. Darcoid Nor-Cal Seal has on offer a wide range of sizes in regard to square cut o-rings and gaskets. Standard Tetra Seals, manufactured by Darcoid range in sizes from 3/16” up to 18” on the inside diameter with standard cross-sections from .066” to .265”. In addition to the typical square or rectangular cross-sections, a number of special cross sectional configurations are available within the standard size range. The square cut o-rings and gaskets also come in various dimensions. It is always recommended to choose an appropriate AS-568A related TS dash number that is shown in the charts, when you go on to select a standard Tetra Seal to replace a standard size o-ring. Darcoid Nor-Cal Seal has on offer perfectly manufactured square cut o-rings and gaskets.
Square cut Orings and gaskets

The process of manufacturing these square cut o-rings and gaskets is excellent, so as to render absolutely homogeneous products. A square cut o-ring and gasket manufactured by Darcoid Nor-Cal Seal, Tetra Seal is completely homogeneous, without any parting-line indentations. A Tetra Seal from the house of Darcoid Nor-Cal Seal does not have any ragged flash extensions or back rind. There are no joints, laminations or void in this exclusive product from the house of Darcoid Nor-Cal Seal. Darcoid Nor-Cal Seal uses state of the art grinding equipment to finish outer surfaces to close tolerances. Darcoid Nor-Cal Seal's exclusive product, Tetra Seal, square lathe cut o-rings and gaskets is known to be suitable for high speed, precision and large volume producing machinery and manufacturing units.

Thursday 1 November 2012

High performance fluid power seals

Rubber is an indispensable product and is used in modern industry and industrial machinery. Industrial 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 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.

Fluid Power seals
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 & 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 allow us to engineer your success with leading edge material development, experienced design and application engineering, quality and outstanding customer service.

Thursday 25 October 2012

Standard and custom made lip seals

Darcoid Nor-Cal Seal has been providing standard and custom-made lip seals for a wide range of applications and industries for a long time as an industry leader and has been providing lip seals for various applications where quality is of utmost importance. A lip seal is nothing but a rotary seal incorporating a deflected lip seal geometry. Anti-rotational devices such as flanges and Orings are often utilized to prevent the seal from rotating along with the shaft. 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 for their ability to resist extreme pressure.

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 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.
Lip seals

Applications often involve media with abrasive particles that can get caught between the seal lip and the mating hardware. This increases wear and tear 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. Standard and custom of lip seals sizes are available with a wide selection of PTFE materials. Darcoid Nor-Cal Seal is an excellent supplier of lip seals. Darcoid has on offer a wide range of products. With Darcoid, which has experience in various areas of expertise, you can be rest assured that your own rubber components will be manufactured to exacting specifications, by experienced professionals.

Thursday 18 October 2012

Different types of hydraulic seals

Hydraulic seals
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.



Thursday 11 October 2012

Shielding Solutions for Wireless Communications through EMI Shielding gaskets

Emi shielding gaskets
Electro Magnetic Interference or EMI shielding gaskets have a wide scope for usage in various fields like aerospace, automotive electronics, computers, data communications, general electronics, medical equipment, military, network equipment, telecommunications and a wider range of industries, Darcoid Nor-Cal Seal, a world class endeavor provides electromagnetic interference shielding to more high-tech industries with global standards around the world.
Whether you need board-level EMI shielding 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 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.

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 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. These divisions join to support darcoid in chauffeuring 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.

Friday 5 October 2012

Get to know many facts about pneumatic seals

Darcoid Nor-Cal Seal offers several different grades and types of compounds for all your application needs. Pneumatic seals are used to restrict 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. 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.
Pneumatic seals
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.
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. Pneumatic seals can be single or double acting. Single acting pneumatic seals are used for one axial direction only. Pneumatic seals can be made of a variety of materials like Polyurethane, Nitrile, Viton, Silicone, EPDM and some PTFE. 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. Darcoid’s selection of products is the broadest offering in the industry for hydraulic and pneumatic sealing systems.



Thursday 27 September 2012

High quality PTFE seals


With the invention of PTFE, it is of great significance for the industry, because it solves a lot of problems in the chemical sector, oil industry and pharmacy industry. It has been widely used as the main sealing material and filling material. 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 sealability. 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.
PTFE seals
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 Teflon seals like Piston Seals, PTFE 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 21 September 2012

Special Die cut gaskets

Die cut gaskets
Gaskets are materials that seal between two different surfaces, under compression. The sealing is a result of the compressive forces created by sufficient bold load, and also works to fill the imperfections on the mating surfaces to be sealed. 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 gaskets 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.

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.

Thursday 13 September 2012

Quad rings dynamic sealing configurations

Quad rings - Darcoid
Quad Rings, also known as X-Rings, can be used in a wide variety of static and dynamic sealing applications. The four-lobed design provides twice the sealing surface in comparison to a standard o-ring.The double-seal action requires less squeeze to maintain an effective seal.This reduction in squeeze means less friction and improved seal life. Quad Ring parting lines are between the lobes, away from the sealing surface, thus eliminating the problems of leakage often resulting from a parting line's irregular surface as found on an O-Ring.
Quad Rings are designed to outperform a standard O-Ring in rotary seal applications.The four-lobed configuration creates a more stable seal avoiding spiral twisting.This allows the use of a more narrow groove width than a standard O-Ring groove, but can also be used in a standard O-Ring groove. To minimize breakaway friction, an O-Ring groove must be wide enough to allow rolling or twisting of the seal. In the long stroke of a reciprocating seal application, this twisting action can strain and eventually tear the rubber, causing a failure mode known as spiral twist.
To prevent spiral twist, a Quad Ring seal's four-lobed configuration is designed to withstand the distortion and extrusion often caused by high or pulsating pressure. To accommodate these forces, a Quad-Ring seal uses a narrower groove than a comparable O-Ring seal. The four lobed seal design not only provides lower friction than an O Ring, but also, due to its square cross section, it resists spiral twist. ` Quad rings can be used for Static and Dynamic applications. In case of static application Quad rings are fitted in the assembly where there is no dynamic movement. Whereas, with a dynamic sealing configuration, quad ring in an internal groove should be stretched over the root of the groove. With external grooves, Quad ring is installed in compressed state.
What's more, a lubricant reservoir formed between the sealing lips improves performance at start up. Their 4-lobe configuration also helps to eliminate the seal from twisting in the groove causing premature failure. Quad Rings can be used in a wide variety of static and dynamic sealing applications. With the unique 4-lobe configuration, Quad Rings have 2 sealing areas per side as opposed to 1 sealing area on an O-ring. Quad Rings are available exclusively from the house of Darcoid Nor-Cal Seal.


Friday 7 September 2012

Teflon seals and its capabilities

The Teflon Seals, as the title suggest are usually back again ups to prevent bulge in rubber o-ring securing methods. This is a common phenomenon regarding rubber o-rings to extrude especially with current smooth systems which are a variety of large difficulties and high temperatures. And also this is really a circumstance in which the o-rings enjoy a substantial part in stopping o-ring extrusion.

These types of Teflon seals are perfect to use as aiding seals with part programs specifically in the particular Region Common AS-568A Uniform Numbering System. We all assure an individual from the level of superior of these forms of O-rings, as they are already successfully accepted simply by simply smooth systems creative developers because of its added flexibility in proportions selection.

These types of kinds are apt for use in securing systems that are often subjected to severe responsibility cycles, or perhaps where difficulties go beyond 3,000 pressure unit and also temperature ranges tend to be over 275 diplomas Fahrenheit.

Putting aside the above, Darcoid furthermore supplies custom made Teflon seals as well as back-up or supportive accessories. This really is so that you can cater to the clients who have specs for specific requirements.

Darcoid Nor-Cal Seal furthermore hosting companies the group associated with unique and also top quality Device and Shaped teflon seals just similar to Piston seals, Buffer seals, Seat Seals, Scrapers, packaging industry requirements in industries like Aerospace, General machinery, Food and Beverage Industry Products and also Pharmaceutical drug and Health-related sector.

Darcoid Nor-Cal seals can be a top supplier associated with custom made Teflon goods supplying total features in Teflon elements manufacturing which includes seals, gaskets, rings or any other required customized designs.

Friday 31 August 2012

Rubber custom molded seals



Darcoid Nor-Cal Seal is a globally recognized endeavor which is into the manufacture of the highest quality rubber o-rings, gaskets, and custom molded rubber seals for industrial machinery and accessories. Darcoid specializes in seals that deliver aptly to their purposes, capable of long term service in demanding machinery and other applications. Darcoid understands the best that a successful seal must embody a proper engineering design, an appropriate sealing material, and a reliable, repeatable, manufacturing process. Along with better durability, a custom made rubber component offers you better performance. While you can purchase prior made isolators, pads and other products, having one made specifically to fit your application is a far better decision.


Rubber custom molded seals delivered from Darcoid Nor-Cal Seal specialize in providing apt services as these custom molded rubber seals from Darcoid Nor-Cal Seal are of high quality elastomer, with special characteristics like resistance to high temperature and pressures. These seals are available with a large diameter, special size, Teflon and also available are custom oil seals. A polymer suitable for the interplay of temperature, pressure, and environmental media is necessary for an effective seal. However, to achieve long-term service, the right polymer must be compounded with proper fillers, curatives and chemical agents. Only then, with proper manufacture, can a seal withstand high temperature, high pressure, and chemical degradation to deliver long-term, leak proof service.


Darcoid Nor Cal Seal provides rubber seals that are custom-designed to each application, with care taken to ensure that the best combination of materials and seal design are furnished to provide the most effective sealing solution. Darcoid Nor-Cal seal is a world leader in manufacture and supply of top quality O-rings, Gaskets, rubber custom molded seals, and Custom Molded Rubber and Plastic components for service in various industries ranging from aerospace, military, medical, pharma industries and also scope in many more areas of industry.


Friday 24 August 2012

Dynamic parker seals

Parkerseals are the most common anti-extrusion devices in dynamic sealing. They provide simple solutions to safely increase system pressure or solve an existing seal extrusion problem. Back-up rings function by positioning a more robust material adjacent to the extrusion gap, taking the seal’s place and providing a barrier against high pressures. Projects that involve heavy machinery and equipment usually involve mechanical seals in the process. Vacuum face seals are another important kind of seals offered by Darcoid.

Darcoid also provides a range of rubber sealing rings which are of great help in reducing friction and improve the service performance of your machinery. Extruder seals are used to seal lengths of sections of a selected type of plastic resin. There are a number of extrusion techniques available such as co-extrusion, offset extrusion, oriented extrusion, overcoat extrusion, cold extrusion, ram extrusion and much more.

Rubber is an indispensable product and is used in modern industry and industrial machinery. Industrial 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. 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.

Darcoid Nor-Cal Seal is into delivering a diverse range of machinery accessories like different varieties of polymers, gaskets, adhesives, molded shapes, thermal products, rubber seals, sealing products like Parker seals, O-Rings, dynamic seals, semiconductor seals, composite seals, rubber gasket seals, medical components, sanitary and hygiene seals and a few other such rubber materials is to prevent friction and leakages and also for an ace performance enhancement of your machinery.

Friday 17 February 2012

Ultimate Sealing Solutions for your Machinery


For all types of machinery to perform best, certain supporting accessories are necessary. The basic reason for using a range of machinery accessories like different varieties of polymers, gaskets, adhesives, molded shapes, thermal products, rubber seals, sealing products, O-Rings, dynamic seals, semiconductor seals, composite seals, rubber gasket seals, medical components, sanitary and hygiene seals and a few other such rubber materials is to prevent friction and leakages and also for an ace performance enhancement of your machinery.

Rubber rings and rubber seals, which are made of natural rubber or synthetic rubber, are basically mechanical seals which are used in static as well as dynamic sealing applications, in various industries like automotive, aerospace, construction etc. These seals are widely adopted in various applications because of features like resistance to aging, flame retardation ability etc.

O-Rings from the house of Darcoid are a kind of rubber seal circular rings. O-rings are 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. As different industries look for diverse variation, there is an array of options to fulfill their demand. Parker O-rings are the finest type available in the market. They are known for their quality and superior sealing abilities.

Parker Back-up rings are the most common anti-extrusion devices in dynamic sealing. They provide simple solutions to safely increase system pressure or solve an existing seal extrusion problem. Back-up rings function by positioning a more robust material adjacent to the extrusion gap, taking the seal’s place and providing a barrier against high pressures. Projects that involve heavy machinery and equipment usually involve mechanical seals in the process. Vacuum face seals are another important kind of seals offered by Darcoid.
Darcoid also provides a range of rubber sealing rings which are of great help in reducing friction and improve the service performance of your machinery. Extruder seals are used to seal lengths of sections of a selected type of plastic resin. There are a number of extrusion techniques available such as co-extrusion, offset extrusion, oriented extrusion, overcoat extrusion, cold extrusion, ram extrusion and much more.

Rubber is an indispensable product and is used in modern industry and industrial machinery. Industrial 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. 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.