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RACO® Spring-Energized Seals
U Shaped Spring Design for extreme face sealing conditions
Polymer seals with an U-shaped spring design used in extreme face sealing conditions, including cryogenic fluids and high vacuum.
Used in
extreme face sealing conditions, including cryogenic fluids and high vacuum, as those seen in space
Temperature
-250°C to +200°C (-418°F to +662°F)
Pressure
UHV to 100 MPa
Max Speed
1 m/s
Clamping Load
2 N/mm
Metal O-Rings
Durable Seals Resistant to Environmental Degradation
These metal face seals are long lasting seals and unlike non-metallic seals, they are not subject to failure due to incompatibility with the environment, outgassing, or deterioration from age.
Used in
areas where elastomers & other non-metallic seals will not seal properly or do not offer required reliability for the application (temperature, pressure, environment).
Temperature
-250°C to +1100°C
(-423°F to +2000°F)
Pressure
high vacuum to 25,000 psi (1723 bar)
Clamping Load
200-3700 lb/in (35-650 N/mm) or higher with spring-energized design
Metal C-Seals Axial
C-Shaped Metal Seals For Axial Applications
Metal face C-Seals help overcome both heat and pressure pulsating sealing challenges. The key to the seal's superior performance is the high springback characteristic due to the C-shaped construction. These highly resilient seals can be used for internal, external, and axial pressures under extreme conditions that preclude the use of gaskets made of organic materials.
Used in
where very low leak rates are demanded
Temperature
-253°C to +1100°C (-423°F to +2000°F)
Pressure
high vacuum to 5,500 bar (79,770 psi)
Clamping Load
Approximately 250 N/mm seal circumference
Metal Lip Seals
Patented Metal Axial Shaft Seals for Dynamic Applications
The metal axial lip seal is a patented design for use in high and low pressure as well as high and low temperature dynamic applications. This sealing solution provides excellent performance in thermal expansion applications or limited rotational or reciprocating applications.
Used in
shaft sealing & bore sealing; further development of axial C-Seal
Temperature
-75°C to +730°C
(-100°F to +1350°F)
Pressure
up to 35,000 psi (2413 bar) with supports
Metal Machined Seals
Thicker-Wall Seals for Extreme Pressures & Load
Machined seals are excellent metal seal solutions for high pressure and high load environments but are different from formed metal seal solutions in that they do not require additional tooling to be manufactured, which saves our customers time and cost. In addition, with our flexible capabilities and expertise to understand your machined metal seal requests, we can provide you the best resistant metal seal solution - from aluminium to complex nickel alloys.
Used in
extreme environments related to high temperature, high pressure, load or corrosive media
Temperature
-250°C to +423°C (-1100°F to +2000°F)
Pressure
high vacuum to high pressure
Metal Segmented & Shaped Seals
Precision Shaped Seals for Unique Design Envelopes
Our metal segmented seals include standard E-Seals, V-Seals and multi-convolution E-Seals. Size is a determining factor for number of segments needed; customers typically use two to eight segments but the seals can be customized to requirements. With seals that have large diameters such as those used in power generation applications (in shroud and turbine sections), when segmented, customers can reduce shipping costs. This design also allows our team to make higher deflection profiles. Many segmented seals use our proprietary NCCM coating to help with wear.
Used in
applications that need small radii or custom shapes
Metal Aluminium Spring-Energized Seals
Enhanced C-Seals with Aluminium Jacket for Superior Tightness
Our aluminium spring-energized seals are standard spring-energized C-Seals with an additional aluminium jacket and soft layer to guarantee the best possible leakage tightness for any kind of surface finish.
Used in
high pressure & zero leakage tolerance with high surface roughness or soft material flange
Temperature
-196°C to +250°C (-320°F to +482°F)
Pressure
vacuum to atm
Clamping Load
200 to 240 N/mm
Meldin® Thermoplastics
Diverse array of engineered Meldin® thermoplastics
Under the Meldin® brand, Omniseal Solutions offers the most complete range of high-performance solutions including one of the top thermoset polyimide materials and a diverse array of engineered thermoplastic products. Each series is designed with unique characteristics and has been proven for specialized applications in aerospace, electronics, and other industries where high thermal resistance and good mechanical properties at high temperatures are required.
Used in
high thermal resistance & good mechanical properties
Meldin® Polyimides
High Temperature Polymer Material Solutions
Meldin® polyimide material solutions exhibit high dimensional stability at high temperatures and longer life at higher loads and speeds. With Omniseal Solutions, total control on the process from the powder to the parts is guaranteed. Solutions include bearings, wear components, piston rings, vanes, thrust washers, and of course seals. This is in addition to custom shapes, rods, sheets, and tubes. These solutions are found in a multitude of industries such as aviation, industrial, semi-conductor, space, and life science.
Used in
where high thermal resistance and good mechanical properties are required
Hycomp™ Composites
Engineered Polyimide-Based Composite Materials
Hycomp™ composite materials are made from high temperature thermoset polymers and long carbon or glass fibers for applications requiring high temperature resistance, high mechanical strength and superior wear resistance.
Used in
when high temperature / wear resistance or high mechanical strength is needed
Meldin® Thermoplastics
4000 PAI Based
Meldin® 4000 is Omniseal Solutions material line of PAI (polyamide-imide) based compounds. The different numbers within the series refer to the unique composition and different properties of the various compounds.
Meldin® 4000 grades are manufactured by injection molding that can meet tight tolerances. There is also a limited number of shapes available for prototyping activities.
Used in
wear resistant in harsh conditions, chemically compatible with all automotive fluids
Temperature
-200°C to +290°C
Manufacturing Process
Hot compression molding
Injection molding
Mechanical Strength
70 MPa
Meldin® Thermoplastics
5000 PEEK Based
Components made with the Meldin® 5000 series (PAEK and PEEK-based material formulations) have several advantages over metals, machined ceramics, and other costly machined materials, with the ease and convenience of thermoplastics. Having a high tensile, compressive and flexural strength, Meldin® 5000 materials are injection molded into tight-tolerance finished components in single or complex designs that can exhibit metal-like finishes without expensive machining or secondary operations, and with the advantages of being lighter and corrosion-resistant.
Used in
used where high load and chemical resistance are needed.
Temperature
-100°C to +260°C
Manufacturing Process
Compression molding
Injection molding
Mechanical Strength
50 MPa
Meldin® Thermoplastics
1000 PPS Based
Meldin® 1000 series is an Omniseal Solutions material line based on polyphenylene sulfide (PPS) thermoplastic compounds. Components made from the Meldin® series materials exhibit excellent chemical and thermal resistance, have good dimensional stability, and maintain structural integrity, proving design versatility. This stability stems naturally from the low coefficients of thermal expansion of the series. The dimensional stability is particularly apparent in components functioning in close-clearance applications.
Used in
Thermoplastic economical polymer material solution BEST for strength and rigidity.
Temperature
-50°C to +200°C
Manufacturing Process
Hot compression molding
Injection molding
Mechanical Strength
35 MPa
Hycomp™ Composites
H310® & H320® Materials
These composite solutions are high temperature, polymer-based materials that are reinforced with glass or carbon fibers. They are used as a replacement for metal due to weight saving properties and eliminating lubrication need in applications with high mechanical requirements. Suited for aviation critical systems such as engine, flight control, landing gear, wheel and braking, applications vary from bushings, guide rings, wear liners, seals, clamps, and thermal isolators.
Used in
applications with high mechanical requirements and as a replacement for metal due to weight saving properties and eliminating lubrication
Temperature
-140°C to +320°C
Manufacturing Process
Sheet molding compound
Mechanical Strength
710 MPa
Hycomp™ Composites
Wearcomp® Materials
This composite solution is a high temperature, polymer-based material that is reinforced with glass or carbon fibers. It is used as a replacement for metal due to weight saving properties and eliminating lubrication need in applications with high mechanical requirements. Suited for aviation critical systems such as engine, flight control, landing gear as well as wheel and braking, applications vary from bushings, guide rings, wear liners, seals, clamps, and thermal isolators.
Used in
general industry applications, especially in the steel and canning industry where its high shear and wear resistance properties provide the most value
Temperature
-140°C to +320°C
Manufacturing Process
Injection molding
Sheet molding compound
Mechanical Strength
510 MPa