Zhejiang Zhonggong Valve Group Co., Ltd.

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 NACE MR0175 (Superseded by ISO 15156)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