api 594 check valve Description
API 594 check valve is a valve that complies with the "Wafer and Lug Check Valve" standard established by the American Petroleum Institute (API). It is designed for industrial pipeline systems and is suitable for scenarios with strict requirements on sealing and pressure resistance. This standard covers the following check valve types:
Wafer check valve: installed by flange clamping, compact structure and light weight; Lug check valve: suitable for occasions where frequent disassembly is required or space is limited.
Core requirements
Sealing performance: The valve disc and valve seat must achieve metal hard seal or elastic seal to ensure two-way zero leakage;
Structural strength: The valve body must withstand the maximum pressure of the pipeline system and water hammer impact;
Installation compatibility: The wafer-type structure must be compatible with ANSI, DIN and other flange standards;
Testing and certification: It must pass the performance test of API 598 or ISO 5208 standards.
api 594 check valve specification
|
Material |
Stainless Steel |
|
Surface |
Natural brass color |
|
Size |
1/2"-2" |
|
Testing Pressure |
100% tested with 0.6MPa - 0.8MPa by air. |
|
Thread |
NPT for selecting |
|
Samples Time |
5 days - For our existing samples for reference |
|
OEM Acceptable |
Yes |
|
Production Capacity |
100,000 pcs each month |
|
Packing Details |
Poly bag, inner box, out carton and pallet. |
|
Payment Term |
T/T ,L/C,,D/P,D/A,PAYPAL |
|
Delivery Time |
20 days to 40 days after confirming the order |
|
Minimum Order Quantity |
300-2000 Pieces |
api 594 check valve
Application industries and problem solving
| Industrial | Applications | Core issues solved |
|---|---|---|
| Petrochemical | Oil and gas pipelines, import and export of reactors in refining and chemical plants | Prevent the risk of explosion caused by backflow of high temperature and high pressure media |
| Energy and Electricity | Steam system of thermal power plant, cooling water circulation of nuclear power plant | Block water hammer impact and protect pump units and pipelines. |
| Pharmaceutical/Food | Aseptic production line, corrosive medium delivery pipeline | Avoid cross contamination and meet sanitary sealing requirements |
| Shipbuilding | Ship power system, ballast water treatment device | Suitable for installation in narrow spaces to prevent seawater backflow |
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