China CF8M Disc PTFE Seat Lug Butterfly Valve Factories, Exporters
Product Description
| Size & Pressure Rating & Standard | |
|---|---|
| Size | DN40-DN1200 |
| Pressure Rating | PN10, PN16, CL150, JIS 5K, JIS 10K |
| Face to Face STD | API609, BS5155, DIN3202, ISO5752 |
| Connection STD | PN6, PN10, PN16, PN25, 150LB, JIS5K, 10K, 16K, GOST33259 |
| Upper Flange STD | ISO 5211 |
| Material | |
|---|---|
| Body | Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L), Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy |
| Disc | DI+Ni, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L), Duplex Stainless Steel(2507/1.4529), Bronze, DI/WCB/SS lined with PTFE |
| Stem/Shaft | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel |
| Seat | PTFE |
| Bushing | PTFE, Bronze |
| O Ring | NBR, EPDM, FKM |
| Actuator | Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator |
Compared to rubber seats, PTFE seats provide superior resistance to corrosion, elevated temperatures, and mechanical wear. Additionally, PTFE is odorless, non-toxic, and environmentally safe, ensuring reliable sealing in demanding applications.
It is designed primarily for water-based fluids and weak corrosive media, covering domestic water, firefighting water, industrial circulating water, sewage, and wastewater.
The valve covers nominal sizes from DN40 up to DN1200, supporting multiple pressure ratings including PN10, PN16, Class 150, JIS 5K, and JIS 10K.
Due to its cleanliness, reliability, and chemical stability, it is widely utilized across petroleum, electric power, textile processing, and papermaking industries.
The valve standardly supports ISO 5211 upper flange mounting, allowing operation via hand lever, manual gear box, electric actuator, or pneumatic actuator.
