Gasket
Definition of Rubber Gasket
Rubber Gasket is a flat, ring-shaped or custom-shaped mechanical seal made of elastomer material.
It is placed between two mating surfaces to create a tight, leak-proof connection, prevent fluid or gas leakage, isolate vibration, and reduce noise.
Advantages of Rubber Gasket
Excellent Sealing
Provides reliable sealing to prevent leakage of liquids, gases and dust.
Good Elasticity & Flexibility
Flexible and easy to compress, fits various flanges and mating surfaces.
Gap Filling Ability
Effectively fills gaps and uneven surfaces for better sealing performance.
Shock Absorption & Noise Reduction
Reduces vibration, cushions impact and lowers equipment noise.
Strong Chemical Resistance
Resists oil, water, heat, weather, corrosion and different media.
Easy Installation & Maintenance
Simple to install, replace and maintain with low labor cost.
Wide Application Range
Suitable for plumbing, automotive, hydraulic, industrial equipment.
Cost-Effective & Durable
Long service life, stable performance and high cost performance.
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![Rubber Flange Gaskets]()
Rubber Flange GasketsWe offer custom rubber flange gaskets tailored to your specific size, material, and performance requirements.read more -
![300lb EPDM Rubber Flange Gaskets]()
300lb EPDM Rubber Flange GasketsUV Exposure: Designed for gasket applications exposed to direct sunlight and prolonged outdoor conditionsread more
Weathering: EPDM construction supports resistance to outdoor aging caused by... -
![UV Resistant EPDM Gaskets]()
UV Resistant EPDM GasketsUV Exposure: Designed for gasket applications exposed to direct sunlight and prolonged outdoor conditionsread more
Weathering: EPDM construction supports resistance to outdoor aging caused by... -
![Steam Resistant EPDM Flange Gaskets]()
Steam Resistant EPDM Flange GasketsHardness: Multiple Shore A hardness options according to flange compression requirementsread more
Thickness: Standard and custom thickness available
Dimensions: Custom ID, OD, bolt-hole... -
![150lb EPDM Rubber Flange Gaskets]()
150lb EPDM Rubber Flange Gaskets150lb EPDM Rubber Flange Gaskets are elastomer sealing components designed for Class 150 flange connections, using EPDM rubber as the sealing material. The gasket is installed between two flange...read more -
![Weatherproof EPDM Flange Gaskets]()
Weatherproof EPDM Flange GasketsWeatherproof EPDM Flange Gaskets are elastomer sealing components manufactured from EPDM rubber and designed for flange connections exposed to outdoor environments, moisture, and weather changes....read more -
![Waterproof EPDM Flange Gaskets]()
Waterproof EPDM Flange GasketsWaterproof EPDM Flange Gaskets are flat sealing components manufactured from EPDM rubber for flange connections exposed to water, moisture, and outdoor environments. The gasket is installed...read more -
![Viton Flange Gasket Seals]()
Viton Flange Gasket SealsViton Flange Gasket Seals are elastomer sealing components manufactured from Viton™ (FKM) material and installed between flange connections to prevent leakage of liquids and gases. During...read more -
![FKM Rubber Flange Gaskets]()
FKM Rubber Flange GasketsFKM Rubber Flange Gaskets are flat elastomer sealing components installed between two flange surfaces to prevent leakage of fluids and gases. During assembly, flange bolts compress the gasket...read more -
![Full Face Flange Gaskets]()
Full Face Flange GasketsFull Face Flange Gasket is a full-coverage, bolt-hole-matching gasket designed for Flat Face (FF) flanges, delivering reliable, leak-free sealing across low-pressure industrial and commercial...read more -
![EPDM Rubber Gaskets]()
EPDM Rubber GasketsEPDM Rubber Gaskets | High-Performance Seals for Outdoor, HVAC, Plumbing & Industrial Use | Custom Sizes Availableread more
Common Types of Gaskets
Rubber Gaskets
Flexible, good sealing for low-pressure, water, air and general applications.
Flange Gaskets
Used between pipe flanges to prevent leakage of liquid and gas.
Non-Metallic Gaskets
Soft, economical, widely used in pipes, flanges and general equipment.
Semi-Metallic Gaskets
Strong, high pressure & temperature resistant for industrial pipelines.
Metallic Gaskets
Solid metal, for ultra-high pressure, high temperature and heavy industry.
Spiral Wound Gaskets
Good resilience, widely used in high-temperature flanges and valves.
Ring Type Joint Gaskets
Metal RTJ gaskets for high-pressure oil, gas and pipeline systems.
Custom Gaskets
Made to order in special size, shape, material for specific equipment.
Applications of Gasket
Non‑Metallic Gaskets:
- Rubber/Elastomers: Nitrile (Buna‑N), EPDM, Neoprene, Silicone, Viton®. Good for low‑to‑medium pressure/temperature; excellent chemical resistance.
- Compressed Fiber/Non‑Asbestos: Aramid, glass fiber, cellulose. General‑purpose; cost‑effective.
- PTFE (Teflon): Exceptional chemical resistance; low friction; suitable for corrosive media.
- Cork: Resilient; oil/fuel compatible; automotive/general sealing.
Semi‑Metallic Gaskets:
- Spiral Wound: Metal strip (stainless steel) + filler (graphite/PTFE). High resilience; ideal for high‑pressure/temperature and thermal cycling.
- Metal Jacketed: Metal outer shell + soft inner core. Combines metal strength with soft sealing.
Metallic Gaskets:
- Ring Joint (RTJ): Octagonal/oval; metal‑to‑metal seal; ultra‑high pressure/temperature (oil/gas, refineries).
- Kammprofile/Serrated: Serrated metal core; excellent for high‑pressure and vacuum.
- Solid Metal: Copper, aluminum, stainless steel; extreme conditions; requires smooth flanges.
FAQ
Q: What is a Gasket?
A: A gasket is a deformable mechanical seal placed between two mating surfaces to prevent fluid or gas leakage, compensate for surface irregularities, and isolate vibration or corrosion.
Q: What Are the Core Functions of a Gasket?
A: Leak prevention: Block fluid/gas escape or ingress.
Surface compensation: Fill flange imperfections.
Vibration dampening: Absorb shock and reduce fatigue.
Thermal/pressure resistance: Maintain seal under extreme conditions.
Corrosion isolation: Prevent galvanic corrosion between dissimilar metals."
Q: How Do I Choose the Right Gasket?
A: Check 5 key factors:
Media: Chemical compatibility.
Temperature: Max/min operating temp.
Pressure: Static/dynamic pressure.
Flange type & finish.
Environment: Vibration, thermal cycling."
Q: Why Do Gaskets Fail?
A: Wrong material for media/temp/pressure.
Poor installation: dirty flanges, uneven torque.
Compression set & creep relaxation.
Thermal cycling & vibration.
Chemical degradation."
Q: Gasket Storage Tips
A: Cool, dry, dark environment.
Keep flat, avoid bending/folding.
Keep away from chemicals, moisture, sunlight.
As one of the most professional gasket manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to wholesale high quality gasket made in China here from our factory. Also, custom service is available.