Check Valves
Stainless Steel Swing Check Valve
- Excellent Corrosion Resistance: Major components like the body and disc are made of stainless steel, effectively resisting corrosion from various chemical media such as acids, alkalis, and salts.
- High Sanitary Level: The smooth surface of stainless steel is not prone to bacterial growth, meeting the sanitary standards of industries like food and pharmaceuticals.
- Automatic Operation: Functions automatically based on fluid pressure without the need for external power, ensuring reliable operation.
- Low Flow Resistance: Provides an unobstructed flow path when fully open, resulting in minimal pressure loss, suitable for systems sensitive to flow resistance.
- Robust Structure, Long Service Life: The high strength and wear resistance of stainless steel ensure the valve's durability even under high pressure and high flow velocities.
The Stainless Steel Swing Check Valve is a type of swing check valve constructed primarily from stainless steel (e.g., 304, 316, 316L). It relies on the force of the flowing medium to automatically open and close the disc, preventing backflow in the pipeline. Thanks to the excellent corrosion resistance, high-temperature tolerance, and strength of stainless steel, this valve is particularly suitable for corrosive chemical media, purified water, food and pharmaceutical applications, and marine environments, ensuring the safety, hygiene, and long-term stability of the pipeline system.
Product Specification
| Item | Standard |
|---|---|
| Design | BS1868, API 6D |
| Structure Length | ASME B16.10 |
| Connection flange | ASME B16.5 |
| Test and Inspection | API 598 |
| Pressure and temperature reference | ASME B16.34 |
Performance Parameter
| Parameter | 150(Lb) | 300(Lb) | 600(Lb) | 900(Lb) | 1500(Lb) |
|---|---|---|---|---|---|
| Nominal Pressure PN (MPa) | 2.0 | 5.0 | 10.0 | 15.0 | 25.0 |
| Case Test Pressure (MPa) | 3.0 | 7.5 | 15.0 | 22.5 | 37.5 |
| High-pressure Sealing Test pressure (MPa) | 2.2 | 5.5 | 11.0 | 16.5 | 27.5 |
| Maximum Working pressure (MPa) | ≤2.0 | ≤5.2 | ≤10.4 | ≤15.6 | ≤25.8 |
Main Components Material
| Part Name | Material |
|---|---|
| Body/Cover | A351 CF8 (304), A351 CF8M (316), A351 CF3 (304L), A351 CF3M (316L) |
| Disc/Hinge Pin | A276/A182 F304, F316, F304L, F316L |
| Sealing Face | Integral with Body or Overlaid with Stellite (STL) |
| Gasket | 304+Flexible Graphite, PTFE |
| Bolt/Nut | A193 B8/A194 8, A193 B8M/A194 8M |
| Temperature | -46°C ~ 425°C (Depends on specific material) |
| Medium | Water, Steam, Oil, Nitric acid weakly corrosive media, etc. |
No drawing available.
