Product Overview
Our stainless steel threaded check valve provides automatic backflow prevention in compact piping systems. Manufactured from AISI 304/316 stainless steel, it offers corrosion resistance and maintenance-free operation for liquid and gas applications.
Key Features
✔ Threaded Ends (NPT/BSP) – Easy installation without welding/flanges
✔ Swing or Lift Design – Low cracking pressure (0.05-0.1 bar)
✔ Full-Bore Construction – Minimal pressure drop
✔ Stainless Steel Construction – 304/316 SS body, disc, and spring
✔ Bubble-Tight Seal – Metal-to-metal or soft seat options
Comparison with Other Check Valves
| Feature |
Threaded Swing Check |
Threaded Lift Check |
Wafer Check Valve |
| Installation |
Threaded |
Threaded |
Flanged/Bolted |
| Cracking Pressure |
Low (0.05 bar) |
Medium (0.2 bar) |
Low (0.1 bar) |
| Pressure Drop |
Low |
Medium |
Very Low |
| Maintenance |
None |
None |
Requires Removal |
| Best For |
General Purpose |
High Velocity |
Space-Constrained |
Applications
Water Systems
- Pump discharge protection
- Boiler feed lines
- Irrigation systems
Process Industries
- Chemical dosing lines
- Compressed air systems
- Process media protection
Oil & Gas
- Instrument air lines
- Small pipeline protection
- Fuel transfer systems
| Size Range |
¼” to 4″ (DN8 to DN100) |
| Pressure Rating |
Class 150 (PN16) / 300 (PN40) |
| Temperature Range |
-20°C to 200°C (-4°F to 392°F) |
| Thread Standards |
NPT (ANSI B1.20.1) / BSP (ISO 228) |
| Cracking Pressure |
0.05-0.5 bar (model dependent) |
| Seat Type |
Metal |
| Flow Direction |
Horizontal/Vertical (Model Specific) |
