NBR O-Ring
NBR (Nitrile Butadiene Rubber) O-rings are the most widely used sealing elements in industrial applications. Manufactured from high-quality nitrile rubber…
- Material
- Nitrile Butadiene Rubber (NBR)
- Hardness (Shore A)
- 70 ± 5
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Silicone O-Ring
Silicone (VMQ) O-rings offer outstanding temperature resistance and excellent flexibility across a wide temperature range. They are non-toxic, odorless, a…
- Material
- Silicone Rubber (VMQ)
- Hardness (Shore A)
- 50-80
FKM O-Ring (Fluorocarbon)
FKM (Fluorocarbon / Viton) O-rings provide superior resistance to high temperatures, chemicals, oils, and fuels. With excellent aging and ozone resistance…
- Material
- Fluorocarbon Rubber (FKM / Viton)
- Hardness (Shore A)
- 75 ± 5
X-Ring (Star Ring)
X-rings (also known as star rings or quad rings) feature a four-lobed cross-section design that provides lower friction and better sealing performance tha…
- Material
- NBR / FKM / Silicone (optional)
- Hardness (Shore A)
- 70 ± 5
FFKM O-Ring (Perfluoroether)
FFKM (Perfluoroether rubber) O-rings represent the highest performance sealing material, offering near-universal chemical resistance and exceptional high-…
- Material
- Perfluoroether Rubber (FFKM)
- Hardness (Shore A)
- 75 ± 5
NBR Skeleton Oil Seal
NBR skeleton oil seals are designed for rotating shaft sealing in automotive, industrial machinery, and agricultural equipment. The metal skeleton provide…
- Material
- NBR + Carbon Steel Skeleton
- Temperature Range
- -30°C to +120°C
FKM Skeleton Oil Seal
FKM skeleton oil seals offer superior high-temperature and chemical resistance compared to NBR variants. The fluorocarbon rubber lip maintains sealing int…
- Material
- FKM + Carbon Steel Skeleton
- Temperature Range
- -20°C to +200°C
Double-Layer Skeleton Oil Seal
Double-layer skeleton oil seals feature two sealing lips for enhanced protection against both lubricant leakage and external contaminant ingress. The prim…
- Material
- NBR / FKM + Carbon Steel Skeleton
- Temperature Range
- -30°C to +200°C (material dependent)
NBR U-Ring
NBR U-rings are bidirectional hydraulic seals designed for reciprocating piston and rod applications. The U-shaped profile provides excellent sealing perf…
- Material
- Nitrile Butadiene Rubber (NBR)
- Hardness (Shore A)
- 85-90
PU U-Ring (Polyurethane)
Polyurethane (PU) U-rings offer superior wear resistance, tear strength, and extrusion resistance compared to rubber-based seals. They are ideal for high-…
- Material
- Polyurethane (PU)
- Hardness (Shore A)
- 90-95
Y-Ring
Y-rings are lip seals with a Y-shaped cross-section designed for hydraulic and pneumatic reciprocating applications. The Y-profile creates a self-sealing …
- Material
- NBR / PU / Fabric-Reinforced Rubber
- Hardness (Shore A)
- 80-95
V-Ring
V-rings (V-packing) are multi-lip seals designed for high-pressure reciprocating applications. The V-shaped cross-section allows multiple rings to be stac…
- Material
- NBR / Fabric-Reinforced Rubber / PTFE
- Hardness (Shore A)
- 85-95
PU Wiper Seal (Dust Seal)
PU wiper seals (dust seals) are installed on the external side of hydraulic cylinders to scrape off dirt, dust, and moisture from the rod surface before i…
- Material
- Polyurethane (PU)
- Hardness (Shore A)
- 90-95
DAS Seal (Combined Seal)
DAS seals are combined piston seals consisting of an elastomer sealing ring, a support ring, and two guide rings. This integrated design provides bidirect…
- Material
- NBR + PTFE + Polyacetal (POM)
- Hardness (Shore A)
- 85-95 (elastomer)
UHS / DHS / UN Series Seals
UHS, DHS, and UN series seals are standard hydraulic seal kits widely used in construction machinery and industrial equipment. UHS seals are designed for …
- Material
- PU / NBR
- Hardness (Shore A)
- 85-95
Glyd Ring (Guide Ring)
Glyd rings are PTFE-based piston seals combined with an elastomer energizer, providing low-friction, high-wear-resistance sealing for hydraulic cylinders.…
- Material
- PTFE + NBR Energizer
- Temperature Range
- -50°C to +200°C
Step Seal (Rod Seal)
Step seals are high-performance rod seals featuring a PTFE ring with an elastomer energizer. Designed for single-acting or double-acting hydraulic rod app…
- Material
- PTFE + NBR / FKM Energizer
- Temperature Range
- -50°C to +200°C
Nylon Guide Ring
Nylon guide rings are wear-resistant bearing elements used to guide pistons and rods in hydraulic cylinders, preventing metal-to-metal contact. Made from …
- Material
- Nylon (PA6 / PA66)
- Temperature Range
- -40°C to +120°C
PTFE Guide Ring (PTFE Backup Ring)
PTFE guide rings and backup rings provide extrusion resistance for elastomer seals in high-pressure applications. Made from pure PTFE or PTFE with fillers…
- Material
- PTFE / PTFE + Bronze / PTFE + Carbon
- Temperature Range
- -200°C to +260°C
Nylon Gear Sleeve
Nylon gear sleeves are custom-machined components used in mechanical transmission systems. Made from wear-resistant nylon material, they provide noise red…
- Material
- Nylon (PA6 / PA66 / MC Nylon)
- Temperature Range
- -40°C to +120°C
PU Coupling (Polyurethane Coupling)
PU couplings are elastic coupling elements made from high-strength polyurethane. They transmit torque between shafts while absorbing shock, vibration, and…
- Material
- Polyurethane (PU)
- Hardness (Shore A)
- 80-98 (customizable)
Non-Standard Custom Seals
We specialize in manufacturing non-standard and custom-shaped rubber seals, gaskets, diaphragms, and miscellaneous parts. With our in-house mold-making fa…
- Material
- EPDM / Silicone / FKM / FFKM / PTFE / NBR / PU
- Customization
- Per drawing, sample, or design concept
EPDM O-Ring
EPDM O-rings are used where water, steam, weather and ozone resistance matter. The compound is common in water-treatment, outdoor and sanitary equipment, …
- Material
- Ethylene Propylene Diene Rubber (EPDM)
- Hardness (Shore A)
- 70 +/- 5
Encapsulated O-Rings
FEP or PFA encapsulated O-rings combine a chemical-resistant outer jacket with an elastomer core. They are an option for aggressive chemical service where…
- Temperature Range
- Application and compound dependent
- Jacket
- FEP / PFA
Rubber Diaphragms
Custom diaphragms can be developed from a drawing or sample in NBR, EPDM, silicone, FKM, PTFE-faced or fabric-reinforced constructions. The material and p…
- Material
- NBR / EPDM / Silicone / FKM / PTFE combinations
- Construction
- Flat, molded, fabric-reinforced or PTFE-faced
Spring-Energized Seals
PTFE, filled-PTFE and Vespel-style spring-energized seals provide low-friction sealing options for high-pressure, chemical or temperature-demanding equipm…
- Temperature Range
- Process and material dependent
- Jacket / Body
- PTFE / filled PTFE / Vespel-style polymer
Oversized & Large-Diameter Seals
Large-diameter and oversized sealing rings can be quoted from dimensions, a drawing or an existing sample. Material and construction are selected around t…
- Material
- NBR / EPDM / Silicone / FKM / other options
- Profile
- O-ring and custom sealing profiles
Water Pump Mechanical Seals
Mechanical seal assemblies for water pumps and related rotating equipment can be reviewed from dimensions, photos or samples. Face materials and elastomer…
- Seal Type
- Single mechanical seal configurations
- Face Options
- Carbon / ceramic / silicon carbide options
TTO / NOK-Style Replacement Seals
Replacement hydraulic seal families can be reviewed against an existing sample, part reference or dimensional drawing. Cletus is an independent manufactur…
- Material
- PU / NBR / PTFE combinations
- Reference
- Sample, drawing and dimensional cross-reference
Fabric-Reinforced V-Packing
Fabric-reinforced V-ring sets are built for stacked high-pressure sealing applications. The number of rings, support components and material are matched t…
- Material
- Fabric-reinforced NBR / rubber compounds
- Configuration
- Stacked V-packing sets
Rubber Gaskets & Profiles
Custom rubber gaskets, cords, profiles, sheets and miscellaneous molded parts are available in common industrial elastomers. Profile, tolerance and materi…
- Material
- NBR / EPDM / Silicone / FKM / PU options
- Product Forms
- Flat gaskets, molded gaskets, rubber sheets, cords, profiles and miscellaneous parts
Combined Hydraulic Seal Kits
Combined piston and rod seal sets, including YA and QY-style configurations, can consolidate an elastomer or PU sealing element with guide and support com…
- Materials
- NBR / PU / PTFE / acetal guide components
- Configurations
- YA / QY and application-specific combinations
HNBR O-Rings
Hydrogenated nitrile (HNBR) O-rings extend the oil, fuel and aging performance of conventional NBR while adding better heat and ozone resistance. They sui…
- Material
- Hydrogenated Nitrile Butadiene Rubber (HNBR)
- Hardness (Shore A)
- 60-90 (compound dependent)
XNBR O-Rings
Carboxylated nitrile (XNBR) O-rings are selected where oil resistance must be combined with higher tensile strength and abrasion resistance. The final com…
- Material
- Carboxylated Nitrile Rubber (XNBR)
- Hardness (Shore A)
- 70-90 (compound dependent)
CR O-Rings
Chloroprene (CR) O-rings offer a useful balance of weather, ozone and moderate oil resistance for general industrial and outdoor equipment.
- Material
- Chloroprene Rubber (CR)
- Hardness (Shore A)
- 60-90 (compound dependent)
FVMQ O-Rings
Fluorosilicone (FVMQ) O-rings combine low-temperature flexibility with resistance to many fuels and oils. They are a practical option when FKM becomes too…
- Material
- Fluorosilicone Rubber (FVMQ)
- Hardness (Shore A)
- 60-80 (compound dependent)
TFE-P / AFLAS-Style O-Rings
TFE-P and AFLAS-style tetrafluoroethylene-propylene compounds are used for steam, acid, alkali and aggressive chemical service where broad chemical resist…
- Material
- Tetrafluoroethylene-propylene rubber (TFE-P)
- Hardness (Shore A)
- 70-90 (compound dependent)
Medical & Food-Grade Seal Sets
Sealing sets for food, pharmaceutical, medical and high-purity equipment can be developed in EPDM, silicone, FKM, PTFE and other suitable materials. Food-…
- Material Options
- EPDM / Silicone / FKM / PTFE / other specified compounds
- Product Forms
- O-rings, gaskets, diaphragms, washers and custom molded parts
PTFE Gaskets & Flat Washers
PTFE gaskets, flat washers and backup components provide low-friction, broad chemical resistance and use across a wide temperature range. Virgin and fille…
- Material
- Virgin PTFE / bronze-filled / carbon-filled PTFE
- Temperature Range
- -100 to +260 C (reference)
FFKM D-Rings & Flat Washers
FFKM D-rings, flat washers and custom profiles are available for aggressive chemical, high-temperature and high-purity service. Reference grade data inclu…
- Material
- Perfluoroelastomer Rubber (FFKM)
- Hardness (Shore A)
- 75 or 85
ED Seal Rings
ED seal rings are molded elastomer seals for threaded pneumatic and hydraulic connections. Their profiled section compensates for connector tolerances and…
- Hardness (Shore A)
- 70-90 (application dependent)
- Reference Pressure
- Up to 60 MPa, subject to connector and material validation
Full-Face Flange Gaskets
Full-face flange gaskets provide a continuous sealing face with bolt-hole positioning for pipe, valve and equipment connections. Flat, raised-face and cus…
- Hardness (Shore A)
- 70-75 reference, customizable
- Reference Standards
- ANSI / DIN / drawing-specific dimensions
Hose Filter Washers
Flat or cap-style hose filter washers combine an elastomer sealing body with a central mesh screen. They seal hose-thread connections while catching debri…
- Size
- Standard and custom dimensions
- Product Forms
- Flat or cap-style filter washers
Water Pump Gaskets
Water pump gaskets are available as pure rubber, metal-skeleton or fully rubber-coated constructions. The sealing material and carrier are selected around…
- Construction
- Pure rubber / aluminum carrier / rubber-coated metal
- Material Options
- Silicone / EPDM / NBR / FKM / ACM / HNBR
PTFE Machined Components
Custom PTFE parts can be machined in virgin or modified compounds, including carbon- or bronze-filled grades. Typical parts include spring-energized seals…
- Temperature Range
- -100 to +260 C (reference)
- Material Options
- Virgin PTFE / carbon-filled / bronze-filled
Rubber Valve Seats
Custom rubber valve seats include molded elastomer seats and rubber-to-metal or PTFE-bonded assemblies for butterfly and other valves. The profile and com…
- Hardness (Shore A)
- 30-90 depending on design and compound
- Product Types
- Pure rubber / PTFE-bonded / metal-bonded valve seats
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