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. 
 

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.