CBS have been supplying quality hydraulic seals for over 30 years and stock or can source 99% of all requirements. The first name in -Rings since 1958 with the right attitude, the best service, and value. The immense clearance in between the machine's piston and cylinder wall can be isolated and cover up with this seals. An important characteristic of -rings is the compression set, or measure signifying how much an elastomer regains its initial thickness after being compressed. We offer a wide range of hydraulic seals suitable for different cylinder types and industries. Figure 1 Hydraulic seals used between nonmoving fittings and bosses are normally called gaskets. They have a quad-ring loader that makes the seal a good choice for low-pressure rod applications. Of course, not every machine contains both rods and pistons, so be sure you know the difference between the two, and which one is the type of seal that you need. Cylinder repair shops can easily upgrade stock OEM seals with highly engineered System Seals products for greater reliability and performance. Some of the rubber materials used to create seals are nitrile, silicone, natural rubber, butyl and styrene butadiene. We are offering our client an excellent quality range of Hydraulic Seal. Seals prevent or reduce fluid passage between 2 surfaces. The most common profiles and designs per seal type and guides are: piston seals, rod and buffer seals, wiper seals, guide rings and guide strips, -rings and back-up rings. Rod seals and piston seals prevent leakage of fluid from cylinders and stop pressure buildup. Heavy-duty rod seals for mobile and heavy duty industrial equipment. Hydraulic Seals are generally made out of a variety of materials, including Rubber, PTFE , and Polyurethane (AU) Compatibility of the materials is decided upon the particular operating medium or restraints due to pressure, fluid type, temperature or chemical compatibility. Primary rod seal when used in sealing system in combination with BT composite spherical bearings. Rod Seals, which guard against external leakage, are one of the most vital components of the sealing system. Aircraft hydraulic components and systems require custom seal engineering to achieve minimal leakage and maximum performance to insure long seal life, and optimize safety concerns. Depending on the application and the type of seal you're using, preventative maintenance measures may be one the most critical aspects of maintaining optimized performance. Usually made of some type of soft, flexible elastomer that provides exceptional water and air sealing capabilities, hydraulic seals are ring-shaped and primarily designed to eliminate or limit the leakage of fluid moving within a hydraulic or pneumatic system. Ic seals, polypack seals, wiper seals, guide ring, -ring seals, Teflon piston seals. Used as static, dynamic, radial or face seals. Back-up Rings are used in conjunction with -Rings for both static and dynamic sealing applications. Typical seal element materials are: Nitrile and FKM. As the rod rotates back and forth, they avert the leakage of the liquid from inside of a hydraulic cylinder to the outside (dynamic stress sealing). Our rod wipers are easy to install by simply snapping or pressing in, and come in a wide range of materials and styles. Our Hydraulic Seals products range includes -Rings and a number of innovative Seals designed for applications in hydraulic cylinders, such as the spring-energized Turcon® Variseal®, -Ring engergized Turcon® Stepseal®2K, Zurcon® polyurethane U-Cup RU9 and many more. For production workflows to run without a hitch it is vital for the power-transmitting, hydraulic fluid to remain enclosed within the system. Although hydraulic seals are primarily designed to prevent fluid leakage, it must be remembered that hydraulic seals provide other important functions and can only be properly maintained under the right conditions. We also design many seals with secondary lips to capture remnants that may have escaped the sealing. X rings can be used both as static seals and as dynamic seals. Custom manufacturer of seals for hydraulic industry. Just as rod seals are designed to keep fluid in, wipers keep contamination out. Back-up Rings: These seals are designed to solve the problem of seal extrusion.
The important functions of hydraulic seals includes preventing leakage, protecting the system from contamination and thus improving the life span of hydraulic systems. The softest -rings are 50 and 60 shore A and stretch more easily, exhibit lower breakout friction, seal better on rough surfaces, and need less clamping pressure than harder rings, For a given squeeze, the higher the durometer hardness of a ring, the greater is the associated friction. Multiple sealing lips. Available as single-acting and double-acting types, these seals can also be used with guide rings and back-up rings. Sealants, Seals, Gaskets and -rings are compulsories item for hydraulic components and systems. A rod wipers main function is to keep the rod and cylinder clean and free from foreign matter preventing premature failure. Also known as scraper seals, they are often used together with other sealing components to let a ram rod pass through the inner bore of a seal, while preventing leakage. And while we don't perform cylinder repair, we do supply the seals necessary to replace your parts. Piston seals separate applied pressures between the piston and rod side during stroke movement and during the interim and final position. Wide range of materials available. The sealing force compensates for high-pressure to maintain a positive seal. Click here to view all types of Reciprocating Seals , specifically Hydraulic Seals or get in touch with an FTL engineer today using our live chat. Polyurethane has a high load-bearing capacity and because of this characteristic not only is it an ideal material for hydraulic seals but also for load wheels , heavy duty couplings, metal-forming pads, shock pads, expansion joints and machine mounts. Specifically, they seal the pressures during the stroke phase of the application. Mechanical, hydraulic & pneumatic seals feature multiple seal points, multi-lobed design, square cross sections & grooves on inside & outside dia. Piston Seals guarantee liquid or other media do not pass round the piston due to the system pressure pushing the piston down the cylinder amid a stress course. Rod wipers are used to clear dirt, debris and other contaminants from the rod so that the primary rod-sealing elements are protected. Rod Seals:These are used to prevent the leakage of lubricants from the cylinder. The Rod Seal is often the decisive factor for the function of the hydraulic cylinder in its entirety. Super Chemically Resistant Viton® ETP -Rings - Extreme Chemical Resistant Fluorocarbon provides significantly improved chemical resistance compared to standard FKM A type fluoroelastomers. Custom manufacturer of rubber, plastic & elastomer seals including hydraulic & pneumatic seals. Hydraulic fluid leakage continues to evolve as an important regulatory issue. The positive rake, lip profile provides an optimal amount of radial sealing load with minimal frictional resistance. It must ensure safe and leakage-free sealing under all system conditions, and at the same time it should produce as little friction as possible. Rod seals are vital to maintaining an efficient hydraulic system, as they are responsible for both preventing fluid leakage from within a hydraulic cylinder and protecting it against dirt and other exterior contaminates. The seal is obtained by means of the flared, flexible lips coming in contact with the rod or cylinder wall. Excluders - Used in a hydraulic or pneumatic cylinder to exclude or scrape the rod clean. Hydraulic seals are vital in machinery. Hoses, gaskets, -rings, tubing, seals and molded and extruded parts can be fabricated. Sealing Devices also provides molded rubber seals, extrusions, lathe-cuts, gaskets, packing, Teflon seals, mechanical seals, graphite, cloth, metal seals, -rings and metal rings, and a complete line of oil seals. Performance Sealing Inc (PSI) designs and manufactures a full line of high pressure hydraulic seal solutions. Piston and rod seals for medium to heavy-duty hydraulic cylinders. Mechanical seals prohibit fluid leakage around the rotating shaft in a state of extreme pressure, temperature and shaft speed. In this case, a combination of PTFE composite seals and wipers would be used to ensure superior sealing performance and a long service life. Cutting edge technologies include multiple sealing lip systems, shock-load resistance, low friction and ultra-dry capability. The distinctive types of sealing positions and directions that are used for hydraulic and pneumatic seals are axial seals, rod or internal seals, external or symmetric seals and piston seals. There are many pieces of equipment that require precise motion control and sealing within the medical industry, and with ever-increasing technological developments, the demand for specialist sealing materials and products will only grow. The lip can also scrape any contaminants from the rod surface, giving them the title of double-edged wiper seals”. The four-lobed design provides twice the sealing of a standard -ring, but requires less squeeze to maintain an effective seal. These wipers provide excellent performance on rods or rams in hydraulic and pneumatic applications. It should also be noted that while all hydraulic seals are important, not every single one is equally important. Allied Metrics is a leader among hydraulic cylinder seal manufacturers. Wear Rings are used to retain the piston centralised. No. 3 - Chemical breakdown of the seal material is most often the result of incorrect material selection in the first place, or a change of hydraulic system fluid. Lip seals are made of many different elastomeric materials, including polymers, plastics and rubbers, and they are effective in providing a seal in revolving machinery and equipment. The wiper is not a pressure sealing element. For the vast majority of hydraulic applications, hydraulic seals are a non-optional component; it simply isn't practical or reasonable to manufacture and use systems which do not use a number of hydraulic seals. Hydraulic cylinder Piston seals are a variation of the rod seals available as single-acting or double acting based on the capability to seal dynamic pressure either on one side or both sides. Wiper seals scrape dirt, chips or moisture from the piston rods as it them into the retract to the system. This allows to match the seal to many different types of cylinders, without making quality and price compromises. They are used to prevent the hydraulic fluid from flowing across the piston, from leaking past the interface between the rod and the head and to keep it from leaking to the outside of the cylinder. RTA Rod Seals: These Single Acting seals are used in hydraulic cylinders that have small groove dimensions. Make sure you confirm all relevant compliance issues for general use of hydraulic seals in your application, as well as identifying any relevant standards based on industry, application, environment, etc. A lubricant in the space between the sealing lip proper (primary lip) and additional (secondary) lip can reduce wear and delay corrosion. Hydraulic seal manufacturers generally fabricate seals from rubber or metal, and in some cases leather or felt. We supply wipers, rod u-seals, rod buffer seals, piston seals, wear rings, U-seals, vee packings, individual vee rings & adaptors, piston cups, T seals, piston assemblies, piston seal assemblies, piston rings, wiper rings, oil seals, ‘' Rings, backup rings, quad rings & retainer rings, as well as bushes, teflon bushes & self aligning bearings for the cylinder eyes. Given the working conditions found in many of these industries, these seals need to be built to withstand high pressure. American Seal & Packing Loaded Lip Seals are molded from 92 Durometer Urethane with a 70 Durometer Nitrile energizer. Toughest of the elastomers used for -rings, characterized by high tensile strength, excellent abrasion resistance, and tear strength. Scrapers or Wipers scrape dirt, foreign particles, chips or moisture from the piston rods as they retract into the cylinder, preventing contamination. Piston seals are dynamic hydraulic seals that are used to prevent the passing of any fluid beyond the piston as the system pressure forces the piston down the cylinder. Hydraulic seal manufacturers create many products that are application specific and specially designed to prevent leaks under very particular circumstances. A hydraulic seal is used to contain fluids and maintain the hydraulic pressure (piston seal, rod seal, back-up ring), to stop the inlet of impurities and to preserve the lubricating film on the rod (wiper seal) and to resist any deformation under a radial load by guiding the piston and rod (wear ring and guide strip). When selecting the best seals for your hydraulic ram, both at OEM or repair stage, it's important to consider the parameters of the application and the operating conditions. Hydraulic applications can be challenging for seals. Thousands of -ring compounds have been formulated for specific applications. All of the metal materials used to create seals may be plated or galvanized for added oxidation protection and strength. The most common place to find these seals, however, is in a hydraulic cylinder. The piston seals acts as a pressure barrier and prevent fluid from passing the piston. A leading manufacturer of moulded rubber seals, elastomer components and custom engineered solutions; manufactured to the highest quality standards, in medium-to-high volumes, to a diverse range of industries around the globe. Rod seals are used in mobile hydraulic, agricultural, and general industrial applications. Also, these seals protect the rod seals from contaminants. As an application user, you must review the user manual provided along with the purchase of hydraulic seals. Designed for light duty applications where style WD wipers are not required. We offer almost 16,000 hydraulic seals to choose from. Our polyurethane u-cups come in symmetrical and double-lip rod and piston asymmetrical styles that maintain a comprehensive water resistant seal. These flaws are often capable of preventing satisfactory -ring performance under the variable operating pressures of aircraft systems; therefore, -rings should be rejected for flaws that affect their performance. The -ring is considered a universal sealing device. T-seals: These seals can be designed in both rod and piston styles to prevent extrusion and spiraling. Conventional seals swell as they absorb hydraulic fluid. Sometimes called loaded-lip U-cups, B-style polypack, and lip seals, these seals have a beveled edge with a symmetrical cross section. Hydraulic seals are generally relatively soft, non-metallic rings captured in groove or fixed in a combination of rings, forming a seal assembly, to block or separate fluid in reciprocating motion applications. Piston seals are important for controlling the motion of a cylinder. Deep-Z rod seals are a type of symmetrically loaded U-cup seal. To better understand our hydraulic seal capabilities unique to your application, please complete our contact form or send an email to gbsa@ with a drawing of your part. Applications: General purpose sealing, Air Tools, Hydraulic fluids, Petroleum based oils, fuels, L.P. gases, Cold Water, Silicone greases and oils, Di-ester base lubricants (MIL-L-7808), Ethylene glycol base fluids (Hydrolubes) and Hydraulic Fluids and in static and dynamic applications. We supply 100s of styles and 1000s of sizes of hydraulic seals in inch and metric sizes. Wipers: Commonly known as scraper seals, these wipers help the ingress of external contaminants, which can damage the sealing system, as well as the application machinery. The T-shaped design prevents spiral failure that occurs with -rings used in cylinders with long strokes. This grants for equal and even wear, and stress allotment on the seals. Hydraulic seals are produced in most cases like any gother mechanical seal or component made of polymers. Rely on hydraulics or pneumatic seals. Polytetrafluoroethylene (PTFE) -rings: Temperature & Chemical Resistant PTFE is a popular -Ring material which is White in color. Are relatively soft, non-metallic rings captured in a groove or fixed in a combination of rings, to form a seal assembly, to block or separate fluid in reciprocating motion applications. 7. Durability: Hydraulic seals are designed to have long service lives. Seals used for MIL-H-5606 hydraulic fluid are not compatible with Skydrol® and servicing the hydraulic system with the wrong fluid could result in leaks and system malfunctions. Piston Seals are external seals. They are usually non-metallic, quite soft rings placed in a housing, or arranged in a mixture of rings creating a sealing unit. The -ring packing seals effectively in both directions. As such, piston seals and rod seals form the category known as lip seals These types of seals are most often used to ensure the proper operation of revolving equipment and machinery. Light-duty hydraulic piston and rod seals recommended where strokes are short and system pressures below 3000 psi. Rod wipers, also known as scrapers or wiper seals, block contaminants from entering the cylinder. Most wiper seals are made from polyurethane and include a secondary lip that is used to catch any oil that has seeped past the main seal. Otherwise, you'll want to consider accessories in the context of the hydraulic system at hand, not the seals you're using. The purpose of this blog is to provide you with 4 tips to install hydraulic seals in a safe environment. Rotary seals are placed where a hydraulic device experiences rotational motion from a housing and a shaft. A homogeneous -ring may be also used for sealing at low pressure. These factors together will suggest different types of hydraulic seal, different materials, different production methods, etc. Made from rubberized fabric, the seal is simply added to the housing of a sealing area where it reduces friction and wear, keeping applications sealed and secure from harmful fluid leakages. Brakes , hydraulic pumps, motors, lifts, gasket -rings, etc. A static hydraulic seal is located in a groove and sees no movement - only sealing within its confined space, acting like gasket. Wear Rings help keep the cylinder from seizing up. Wear Rings are also know as wear bands, guide rings, wear guide rings, or bearings. Materials used include fiberglass cloth, silica cloth, ceramic fiber products, papers, graphite, non-asbestos sheets, spiral wound materials, PTFE & expanded PTFE. Our Guide rings are available various materials such as Polyacetal, Fabric reinforced Phenolic Resin, Fabric Reinforced Polyester Resin, PTFE and Glass-Fibre reinforced Polyacetal. This concentrated pressure buildup enables the piston to travel the bore of a cylinder and the cylinder to actually move with maximum mechanical effort. Wide range of retainer materials and elastomers. Polyurethane is a moderately expensive material whose use is usually limited to applications that require its outstanding physical properties. Seals are essential to fluid power engineering, as they prevent a fluid or gas from passing between the different components of a hydraulic cylinder. It is not recommended that U-cups or any other single lip seal be used in any application where there is excessive side loading. Hydraulic piston seals prevent fluid from flowing across the cylinder head. Glass loaded nylon rings to prevent metal-to-metal contact in all types of hydraulic cylinder applications. Chesterton'" positive rake wipers are designed to effectively clean and dislodge foreign matter from retracting rods or rams to prevent scoring and system contamination. Devices that use seals include hydraulic rams, presses and mixers, brake devices, valves, clean rooms , conveyors and test equipment. Below you will find more information about the main range of hydraulic seals: type, profile, material, as well as the pressure, temperature and speed that these seals support. Always at the forefront of innovation, SEALTECH was the first company in Europe to install an online e-business system for hydraulic seals. Piston Seals : These seals prevent the leakage of pressurized fluids by creating a sealing between the cylinder and the piston. If you require any further advice regarding seals and their applications, the team of experts at FPE Seals can help you source what you need. SKEGA AB, of Ersmark, Sweden, take a pride in a range of piston rod seal assemblies for hydraulic systems.
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