Cast Check Valve

Jul 20, 2019

Basic Info

Material: WCB, WCC, WC6, WC9, C5, C12, CF8, CF8M, CF3, CF3M, CN7M, LCB, LCC, DUPLEX SS, MONEL, ALLOY 20, CAST IRON etc
Structure: Swing
Function: Prevent media countercurrent
Application: Industrial Usage, Water Industrial Usage, Household Usage.Light Industrial Usage and so on .
Origin: China
Connection Form: Flange
Pressure: Ordinary Temperature
Standard: ANSI
Trademark: NIPO

Product Description

API Check Valve
Cast Steel Swing Check Valves
Standard compliance
1) Design and manufacture: API6D,API594,JB/T8937
2) Test and inspection: API598
3) Face to face dimensions: API594,API6D,DIN3202,JB/T8937
4) Flanged end: ASME B16.34

Swing Check Valve Features:

The valve is closed by the reversing flow medium and the weight . The valve is closed by two stages of quick and slow closing which prevents the pump from
Turning back and superhigh water hammer pressure. The weight on the shaft balance the force during opening to reduce the flow resistance
This kind of valves are automatic type which are opened by the pressure of the medium and closed by the reversing flow. The water hammer rising has been taken into consideration during design so it is reliable.

MATERIALS OF MAIN PARTS

Specifications:

1) Size:1/2"-72"

2) Class: 150LB to 2500LB

3) Type: Bolted Cover, Swing Disc, Threaded or Welded seat ring
4) Material: WCB, WCC, WC6, WC9, C5, C12, CF8, CF8M, CF3, CF3M, CN7M, LCB, LCC, DUPLEX SS, MONEL, ALLOY 20, CAST IRON etc
5) Operation: Lever with counterweight(option)

Main features and applications:

1. Products using pin axis structure of built-in type, reduce leakage, the use of more reliable.

2. Valve disc rotate around the valve seat outside the axis, reduce the impact of the closure, suitable for horizontal or vertical installation.

3. Product design and manufacture according to API standard, reliable sealing, good performance, and can be used with imported equipment.

Standard materials of parts

No.	Parts	Materials
1	Body	ATM A216 WCB
2	Seat ring	ASTM A105 + 13Cr
3	Disc	ASTM A216 WCB + 13Cr
4	Disc nut	ASTM A182 F6
5	Hinge	ASTM A216 WCB
6	Hinge pin	ASTM A182 F6
7	Gasket	Stainless steel and graphite spiral wound
8	Cover	ASTM A216 WCB
9	Cover bolt	ASTM A193 B7
10	Cover nut	ASTM A194 2H
11	Washer	Steel

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