ANSI B16.34 API 6D Swing Flanged Check Valve , Pressure Class 150 - 1500

ANSI B16.34 API 6D Swing Flanged Check Valve , Pressure Class 150 - 1500 

Descrition:

Check Valve, also known as a one-way valve or Check Valves. Pipeline used to prevent reflux of a fluid valve. So pipeline fluid can only make one-way flow of fluid when the clock back, the flap valve can be shut down automatically to prevent backflow. According structure can be divided into two categories : elevating and spin-Kai (or a shake-flap). Former perpendicular to the valve flap valve passageway movements with Valve are generally designed as a cut-off valve and valve common. The latter is a flap valve around the sealing surface for rotating movement, resistance than elevating small, poor sealing performance.

Specifications:

Design and Manufacture: ANSI B16.34,API 6D,BS1868
Face to face(end to end): ANSI B16.10, API6D, DIN3202

Test and inspection: API598, API6D, BS6755

Pressure: Class150 - Class1500

Size: DN50-DN600

Materials list: 

NO.	Part name	Material
1	Body	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
2	Cover	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
3	Hinge	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
4	Hinge yoke	A216 Gr WCB	A352 Gr LCB	A217 Gr WC6	A217 Gr WC9
5	Gasket	Spiral wound/soft iron	Spiral wound/soft iron	Spiral wound/SS304	Spiral wound/SS304
6	Cover bolt&nut	A193 Gr B7/A194 Gr 2H	A320 Gr L7/A194 Gr 4	A193 Gr B16/A194 Gr 4/7	A193 Gr B16/A194 Gr 4/7
7	Bolt stud&nut	A193 Gr B7/A194 Gr 2H	A320 Gr L7/A194 Gr 4	A193 Gr B16/A194 Gr 4/7	A193 Gr B16/A194 Gr 4/7
8	Disc	CS+SS/SS/SS+STL(see body materials)
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