Industrial Flange Metal Check Valve Water Supply , Adjustable Stainless Steel Swing Check Valve
Flange swing check valve
Overview of swing check valves
Swing check valve, also known as one-way valve or check valve, its role is to prevent the backflow of media in the pipeline. The opening and closing parts are opened or closed by the medium flow and force to prevent the medium from flowing back. The valve is called a check valve. Check valves belong to automatic valves. They are mainly used in pipelines where media flow in one direction. Only one direction is allowed to flow in order to prevent accidents. Such valves should normally be installed horizontally in pipes.
Design and Application standard
1. Design and manufacturing standards: GB/T12236-2008
2. Connection flange standard: JB/T79-94
3. Structure length standard: GB/T12221-2005
4. Inspection and test standards: JB/T9092-99
5. The valve flap is a swing type. The flow channel is straight through, and both horizontal and vertical pipes can be installed."
Main performance specification
Type | (MPa) Nominal pressure | (MPa)Test preeur | Applicable temp | Applicable medium | |
Shell | Seal | ||||
H44T-10 | 1.0 | 1.5 | 1.1 | ≦200 | steam |
H44W-10 | ≦100 | Gas, oil | |||
H44T-16 | 1.6 | 2.4 | 1.76 | ≦200 | steam |
H44W-16 | ≦100 | Gas, oil | |||
H44W-16P | -20~150 | Nitric acid | |||
H44W-16R | Acetic acid |
Main part material
Parts | ZG1Cr18Ni9Tiseries | ZG00Cr18Ni10 series | ZG1Cr18Ni12M02 series | ZG00Cr17Ni14M02 series | WCB series |
Valve body, bonnet | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12M02Ti | ZG00Cr17Ni14M02 | WCB |
Rocker | G1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12M02Ti | ZG00Cr17Ni14M02 | WCB |
Valve flap | G1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12M02Ti | ZG00Cr17Ni14M02 | WCB |
Gasket | 304+PTEF | 304L+PTEF | 316+PTEF | 316L+PTEF | Graphite+304 |
Stud | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 35CrMOA |
Nut | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 45 |