We Are Offering GOST Cast Iron Wormgear Butterfly Valve

Business Scope:Butterfly Valve,Gate Valve,Check Valve,Globe Valve,Ball Valve,Y Strainer,Rubber Joint,etc

GOST Butterfly Valve Specifications

1. Working temperature: -45 to 200 Celsius .

2. Top Flange: ISO5211 or factory standard.

3. Nominal diameter: DN25~DN1200 (1"~48").

4. Design standard: API 609, BS EN 593, MSS SP-67, BS5155.

5. Suitable media: Petroleum, chemical industry, water, oil, gas etc.

6. Pressure test: API 598, ISO 5208, EN12266-1, DIN3230, BS5155.

7. Working pressure: PN10/PN16/PN25 or 10Bar/16Bar/25Bar or Class 125/150.

8. Operator: Handle lever, worm gearbox(reducer), electric or pneumatic actuators etc.

9. Face-to-face conform to API 609, ISO 5752, BS EN 558, BS 5155, MS SP-67, DIN3202.

10. Flange: ANSI B 16.1 125/150, AS2129, BS4504, BS EN 1092, BS 10 table D/E, DIN 2501 PN 10/16/25, JIS 5K/10K.

GOST Butterfly Valve Main Parts Materials

A) Key: Carbon Steel.

B) O-Ring: NBR, EPDM, Neoprene, Viton.

C) Bushing: PTFE, Nylon, Lubricated Bronze.

D) Seat: NBR, EPDM, Neoprene, Viton, PTFE, BUNA, Hypalon.

E) Taper Pin: Carbon steel; Stainless Steel: ASTM A276 Type 410/420/304/316, EN 1.4501.

F) Stem: Zinc Plated Carbon Steel; Stainless Steel: ASTM A276 Type 316/304/410/420, ASTM A582 Type 416.

G) Body/Disc: Cast Iron(CI): ASTM A126CL. B, DIN1691 GG25, EN 1561 EN-GJL-200, GB12226 HT200;

Ductile Iron(DI): ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10;

Stainless Steel: ASTM A351 CF8, CF8M; CF3, CF3M;

Carbon Steel: ASTM A216 WCB.