Gost Butterfly Valve
Butterfly valves designed to comply with MSS SP-67, BS5155 and API 609. Compatible with ANSI. DIN. BS. JIS flanges. Available in size 1 1/2” to 48” Available in wafer type, lug type . Available with handles (1 1/2” to 12”), manual gear operators (1 1/2” to 48”), and electric or pneumatic actuators ((1 1/2” to 48”). With many body/trim combinations, there is a butterfly valve to meet with your application.
| Item | Part Name | Material |
| 1 | Body |
Cast Iron: ASTM A126CL , DIN1691 GG25, EN 1561 EN-GJL-200; GB12226 HT200; Ductile Cast Iron: ASTM A536 6W5-12. DIN 1693 GGG40. EN1563 EN-GJS-400-15. GB12227 QT450-10 |
| 2 | Stem |
Zinc Plated Steel; Stainless Steel: ASTM A276 Type 316. Type 410. Type 420; ASTM A582 Type 416. |
| 3 | Taper Pin | Stainless Steel: ASTM A276 Type 304. Type 316; EN 1.4501. |
| 4 | Seat | NBR, EPDM, Neoprene, PTFE, Viton. |
| 5 | Disc |
Ductile Cast Iron (Nickel plated); ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10; Stainless Steel: ASTM A351 CF8, CF8M; CF3. CF3M; EN 1.4408,1.4469; 1.4501; AL-Bronze: ASTM B148 C95400. |
| 6 | O-Ring | NBR, EPDM, Neoprene, Viton. |
| 7 | Bushing | PTFE, Nylon, Lubricated Bronze. |
| 8 | Key | Carbon Steel |
»> Product Overview
Wafer butterfly valves are consists of rubber seat, carbon steel or stainless steel disc and stem. They apply to the temperature under 80-120°C, they are used on water supply and drainage and gas pipelines, such as foodstuff,medicine,chemical industry, petroleum, electric power,textile, papermaking etc,to be worked as adjusting and the closure device.
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