① To avoid abnormal pressure rise in the middle chamber, pressure relief opening is fitted at the inlet side of disc. ② The length of the top of bonnet depends on the working temperature of valve to ensure reliable sealing of stem packing.③ Use reasonable materials for the components like packing and gaskets etc. according to working temperature. ④ Strict control of the chemical composition of materials and the mechanical performance index such as
Flat gate valves have two structural types, namely single disc carrying deflector hole and not carrying deflector hole. Ones carrying deflector hole are given smooth flow passage to adapt to oil and gas transportation and through ball etc. Application: Flat gate valves are suitable for Class150~900, PN1.0~16.0MPa, and -29～121℃ petroleum, natural gas, water and oil pipeline to cut off or put through the media in pipeline.
Stainless Steel Gate Valve Gear Op. Standard: Basic Design: API 600, ANSI B16.34, Gate/BS1414, Globe/BS1873, Check/BS1868 Test: API 598, BS 6755 Products Range: Size: 2" ~ 64" Rating: ANSI 900lb ~ 2500lb Body Materials: Carbon Steel, Stainless Steel Alloy Steel, Duplex Steel Trim: Per API 600 Operation: Handwheel, Gear, Motor, Pneumatic Design Feature: API 591 pull test certified (Gate) Low emissioncontrol (Gate, Globe)
Design Standard: Basic Design: API 600, ANSI B16.34, Gate/BS1414, Globe/BS1873, Check/BS1868 Test: API 598, BS 6755 Products Range: Size: 2" ~ 36" Rating: ANSI 150lb ~ 600lb Materials: ASTM A352 LCB, LC1, LC2, LC3, LC4 A351 CF8, A351 CF8M Operation: Handwheel, Gear, Motor, Pneumatic Design Feature: API 591 pull test certified (Gate) Low emission control (Gate, Globe) Flexible wedge (Gate) Threaded or welded seat (All)
Wafer Knife gate valve, Chain wheel knife gate valve, pneumatic knife gate valve, electric knife gate valve. Knife gate valve, Design and manufacture standard: GB/T, ANSI, JIS, DIN Specifications: 1). Pressure: 0.6-1.6 MP Or 150Lb 2). Size: 50-1600mm 3). Body, Bonnet, material: Carbon Steel (WCB), Stainless Steel (SS304, SS316, SS301, 316L), Cast Iron 4). Seal: Rubber, PTFE, Stainless steel, Hard Alloy
