Common phenomenon for rubber o-rings

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 fluid power seal is commonly used in applications such as agriculture hydraulics, mobile hydraulics, machine tools, and hydraulic presses. 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.

When choosing a sealing system, the desired result is ultimately leakage control. Seal design and material improvements have made it possible not only to have seal combinations that provide zero leakage, but also provide extended life in a variety of applications.

Aside from the seals themselves, a thorough understanding of system parameters is necessary to obtain the best results. Optimal sealing is best achieved by taking a system's approach to the seal package rather than considering components individually.

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.

Teflon Seals, as the name suggest are back ups to prevent extrusion in rubber o-ring sealing systems. It is a common phenomenon for rubber o-rings to extrude especially with present day fluid systems that are a combination of high pressures and high temperatures. And this is a situation where the Teflon backup rings play a significant role in preventing o-ring extrusion.

These Teflon seals are ideal to be used as backup rings in aerospace applications especially in the Aerospace Standard AS-568A Uniform Numbering System. We assure you of the quality of these types of O-rings, as they have been successfully approved by fluid systems designers for its added flexibility in size selection.
These varieties are apt for use in sealing systems that are frequently subjected to severe duty cycles, or where pressures exceed 3,000 psi and temperatures are above 275 degrees Fahrenheit.

Apart from the above, Darcoid also supplies custom made Teflon seals and backup rings. This is to cater to the customers who have individual specifications for their special requirements. Darcoid Nor-Cal Seal 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.

Customized O-rings and Parker seals of nearly infinite size range

A fabric reinforced diaphragm limits the stroke and provides a frictionless seal. These diaphragms generally cost less, have more tolerance range, and do not require hardened super finishes or lubrication. The function of a diaphragm is the most important factor in its design and manufacture. Simple diaphragms move from one position to another, such as pressure switches and solenoid valves. Diaphragms can be used as shock absorbers as in a dash pot or as dampening devices in pulsating systems. Diaphragms can also be used as barriers between fluids and gases, such as in a pressure drop on the fluid side.

Diaphragms are also used in pumps, such as automobile fuel pumps, hand pumps, and diaphragm air compressors. In these cases an outside mechanical force is actuating the diaphragm. This functions to displace a volume of media. In the case of a pump the diaphragm creates a low pressure area causing the fluid or gas to move into this area. In all the above cases the function of the fabric reinforced diaphragms will generally be the determining factor when considering the type of construction, the material composition, fabric design (weave/knit), and the type of polymer.

Many applications require elastomeric coatings on only one side such as applications where the pressure differential is in one direction. When knit fabrics are employed, the coating is usually on one side and the same side as the pressure. This allows the fabric to support the coating on both sides for flat diaphragms.
Parker seals and O-rings are excellent for preventing various kinds of fluids/liquids or gas loss. These Parker seals have 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 seals 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 Parker seals 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. With the huge demand for Parker seals and O-rings, Parker has also come up with a novel idea of developing customized O-rings and Parker seals of nearly infinite size range as per the requirements of individual clients.

The Parker seals O-rings that are customized can be available from Darcoid Nor-Cal Seal. The customization is towards the safety. 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.

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.

Customized varieties of Die cut gaskets and Parker seals

The cutting of gaskets also known as die cut gaskets making and is the precision fabrication or conversion of selected materials in sheet or roll form into the desired shape and size. Custom die cut provides the right shape for any application. It is mainly used in the making of coins and medals. Also, it is used in industrial applications such as the production of polystyrene, polyurethane and polyethylene foam products. A die cut gasket offers freedom to meet exact needs.

The cost of custom die cut depends on the shape, style, and variety of the application. For custom die cut, the process that is applied is die cut gaskets - steel rule die and precision die cut, water-jet cutting, kiss-cutting, laser cutting and shearing. Custom die cut needs extensive technical knowledge and a wealth of experience.

Die Cutting is a procedure by which a material is cut to an exact design or shape with the help of a die. It is a creative process similar to cookie cutting. It involves the cutting of shapes from plastic sheets using a shaped knife and pressing the edge into one or more layers of sheeting. After completing the cutting, a certain pressure is applied using mechanical or hydraulic presses. Die cutting is sometimes known as dinking or blanking.

Customized varieties of Die cut gaskets and Parker seals come 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 sealing product is cross section diameter. It is to be mentioned here that the inner diameter of the product should be similar to the inner diameter of the groove, so that it can get stretch and stick to the groove. The Parker seals O-rings that are customized can be available from Darcoid Nor-Cal Seal. The customization is towards the safety.

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. 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. Darcoid Nor-Cal Seal is a world renowned manufacturer of sealing solutions and a wide range of accessories like die cut gaskets and spliced o-rings, and a distributor for the top manufacturers of seals, gaskets and rubber products. Darcoid is an expert in supply chain management and value added distribution services, resulting in high quality seals and good cost value solution for your company.

Hydraulic seals and quad rings for a wide range of applications

Quad Rings are specially developed sealing solutions that are four lipped, with twice the number of sealing surfaces as an O-ring. The four-lobed design not only provides lower fiction than an O-ring, but also, due to its square cross section, it resists spiral twist. Quad Rings are available in a wide range of elastomer materials for both standard and also other special applications. Quad Rings are vulcanized as a continuous ring. Quad-Rings are completely interchangeable with O-rings and are available in all standard O-ring sizes from 1/32" to 26", as well as custom seals for unique applications. There are many features of quad rings, which include high sealing effect, avoiding spiral twist, longer seal life, absence of parting line on sealing surface and many more.

Hydraulic seals are designed for the reciprocating motion that is common in hydraulic applications, such as cylinders. Hydraulic seals are designed for high-pressure dynamic applications such as hydraulic cylinders. 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. Common features for hydraulic seals include spring loaded, integral wiper, and split seal.

Darcoid Nor-Cal Seal is a leading distributor of all kinds of sealing solutions for a spectrum of industries.Darcoid Nor-Cal Seal is into supplying world class EMI shielding Gaskets and Seals, O-Rings, Molded Rubber Parts, EMI/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 and Gap fillers, Wave Guides, Wire Mesh Gaskets and many more.

Darcoid Nor-Cal Seal has been providing standard and custom-made hydraulic seals and quad rings for a wide range of applications and industries for a long time as an industry leader and has been providing all kinds of sealing solutions for the Aerospace and Military markets where quality is of utmost importance.

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.

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.