Hejian Maosheng Sealing Materials Co., Ltd. is a direct manufacturer of flange rubber gaskets in Hejian City, Hebei, China, supplying sealing gaskets for pipe flanges, valves and equipment manholes. Our flange gaskets are die-cut from NBR, EPDM, CR, silicone (VMQ), FKM and HNBR rubber, manufactured to GB/T 9126, HG/T 20606, ASME B16.21, DIN and JIS standards, and available in FF (flat face), RF (raised face), MFM (male and female) and TG (tongue and groove) face types. As a Hebei flange gasket factory we keep DN15-DN2000 in stock, with custom segmented gaskets for DN200 and above and for large diameters.
Specifications
| Item | Parameter Range | Description |
|---|---|---|
| Material | NBR / EPDM / CR / VMQ / FKM / HNBR / NR / SBR | Iron or steel wire reinforcement available |
| Nominal Diameter | DN15 – DN2000 | Segmented gaskets available above DN2000 |
| Pressure Rating | PN6 / PN10 / PN16 / PN25 / PN40 / Class150 / Class300 | GB / ANSI / JIS / DIN standards |
| Standard Thickness | 1.5 mm / 2 mm / 3 mm | Any size from 0.5 to 50 mm |
| Sealing Face Type | FF / RF / MFM / TG | Selected by flange face |
| Service Temperature | -60 ℃ ～ +300 ℃ | Varies by material |
| Suitable Media | Water / steam / oil / acid / alkali / salt / solvents etc. | Selected by application |
| Standard | GB/T 9126、HG/T 20606、ASME B16.21 | Produced to any customer-specified standard |
Application Cases
- Chemical / Petrochemical Pipe Flanges Acid, alkali and oil resistant, for reactors, tanks and heat exchangers.
- Water Treatment / Plumbing Lines EPDM resists ozone and weather, for outdoor pipe sealing.
- Steam / Compressed Air Lines Graphite and aramid filled grades for high temperature and pressure.
- Food / Pharma Equipment Manholes Food grade silicone and EPDM meeting hygiene requirements.
Our Advantages
- Hejian direct factory stocking many DN15-DN200 sizes, with standard orders shipped the same day.
- Custom non-standard gaskets to drawing or sample, custom die-cutting and any inner or outer diameter.
- Free tooling for standard items, with material report and factory inspection sheet.
- Selection advice to match the best material and thickness.
- 13% VAT invoices available, monthly settlement for long-term partners.
Need a flange gasket specification sheet or a quotation? Send us the flange standard, DN, PN, medium and temperature and we will reply within 24 hours.
