Specifications 
It is widely used in pipeline system as efficient stop valves with flow in either direction as well for throttling service. 

Features 
1. Two or Three-piece body design 
2. Double block and bleed or automatic pressure release in body chamber 
3. Trunnion supported design reduces operating torque 
4. Two sets of O-rings plus firesafe stem packing prevents leakage 
5. Corrosion resistant low friction bearings 
6. 17-4pH or Inconel seat springs 

7. Sealant injection fittings for emergency stem or seal sealing 
8. Direct mount topworks pad for actuator or gear operator 
9. 8" & larger valves are equipped with lifting lugs 
10. Locking device (lock not included) 
11. NACE MR0175 (Superseded by ISO 15156) 
12. Anti-blowout trunnion stem design 

Standards 
These valves comply with the applicable requirements of the following standards: 
Design and manufacture: API6D, BS5351, API608, ASME 16.34 
Face to face(end to end): ASME B16.10/API6D 
Flange connection: ASME B16.5, 26"-60" to ASME B16.47 or to API605 on request 
Test and inspection: API598/API6D 

Produce Ability 
Size: NPS 2"-56" 
Pressue: Class 150-2500 
Material: WCA, WCB, WCC, WC1, WC5, WC6, WC9, C5, C12A, CA15, LCB, LCC, CF8, CF8M, CF3, CF3M, CF8C