Valve type
Wafer type check valve: double disc check valve, piston lift check valve
Usage and Feature
1. Usages
Series check valves are used in oilfield, chemical-industrial, power-station for checking the flow-backward of the material in the pipe.
2. Features
|
Type |
Nominal pressure |
Strength testing pressure |
High-pressure Sealing testing Pressure |
Low-pressure Sealing testing Pressure |
Temperature Range |
Applicable medium |
|
|
H2a3AR |
1.6MPa |
2.4Mpa |
1.76MPa |
Non |
CC10 |
≤425°C |
Water, oil |
|
H3a3AR |
2.5MPa |
3.75MPa |
2.75MPa |
CA23 |
≤540°C |
steam |
|
|
H4a3AR |
4.0MPa |
6.0MPa |
4.4MPa |
||||
|
H5a3AR |
6.4MPa |
9.6MPa |
7.04MPa |
CS34 |
≤316°C |
||
|
150Lb |
3.03 MPa |
2.2MPa |
|||||
|
300Lb |
7.78MPa |
5.78Mpa |
≤425°C |
||||
Working theory and configuration direction
1. Series check valve are designed and made under standard API594 and JB/T7746, tested under standard API598,JB/T9092.
2. The disc opens under the pressure of the liquid, the liquid flow from the inlet to the outlet. Continue reading “Wafer type Double Disc/Piston lift Check Valve-Installation, Operation and Maintenance Manual”