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.

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.

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.

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.

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.