Rubber Flange Gaskets
Rubber Flange Gaskets are sealing components designed for pipe flanges, valves, pumps, tanks, and other bolted connections. They are compressed between mating flange surfaces to prevent leakage of liquids and gases while compensating for minor surface irregularities and flange imperfections.
We manufacture standard and custom rubber flange gaskets in a wide range of materials, sizes, thicknesses, and profiles to meet different sealing requirements.
Available Materials
| Material | Key Properties | Typical Applications |
|---|---|---|
| EPDM | Excellent resistance to water, steam, weathering, ozone, and many chemicals | Water systems, HVAC, plumbing, chemical equipment |
| NBR | Excellent resistance to mineral oils, fuels, and hydraulic fluids | Oil & gas, hydraulic systems, machinery |
| FKM | Excellent resistance to high temperatures, fuels, oils, and many chemicals | Automotive, chemical processing, oil & gas |
| VMQ / Silicone | Wide temperature capability, excellent flexibility and weather resistance | Food equipment, HVAC, electrical and general industrial applications |
| HNBR | Improved heat, oil, and mechanical resistance compared with standard NBR | Automotive, oil & gas, hydraulic applications |
| CR / Neoprene | Good weathering, ozone, and moderate oil resistance | General industrial and outdoor applications |
For demanding chemical or high-temperature applications, other elastomer compounds or rubber/PTFE composite constructions can also be considered according to the operating conditions.
Standard & Custom Sizes
Rubber flange gaskets can be supplied according to common international flange standards or manufactured to customer drawings and specifications.
Typical specifications include:
- Nominal sizes:DN15–DN600 and larger
- Pressure classes:PN6, PN10, PN16, PN25, PN40 and others
- ASME Classes:Class 150, 300, 600 and others
- Thickness:Custom thickness available
- Gasket profiles:Full-face, raised-face and custom profiles
- Dimensions:According to flange standards, drawings, or samples
Common standards may include EN, DIN, ASME/ANSI, JIS and BS, depending on the flange system.
