Swing Check Valve
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Swing Check Valve
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Swing check valves are essential components in fluid systems, operating as one-way valves to prevent backflow. Their volumetric efficiency hinges on the valve’s ability to fully open and close with minimal pressure drop. When fluid flows in the intended direction, the hinged disc swings open, allowing near-unobstructed passage. The design minimizes flow resistance, leading to a high volumetric flow rate and reduced energy consumption.Â
Several factors influence the volumetric performance of a swing check valve. The disc’s weight and the fluid’s viscosity play key roles in determining the opening and closing speeds. A lighter disc requires less pressure to open but may be more susceptible to flutter or water hammer. Fluid viscosity affects the pressure drop across the valve, with thicker fluids causing greater resistance. Moreover, proper installation and maintenance are paramount. Debris or wear on the sealing surfaces can compromise the valve’s ability to create a tight seal, leading to leakage and reduced volumetric efficiency.Â
Features
- High Flow Capacity
- Low Pressure Drop
- Low Head Loss
- Quick Closure
- High Cycle Life
- Balanced Disc
Applications
- Pumping Systems
- Pipeline Systems
- Industrial Processes
- Water Treatment
- HVAC Systems
- Oil and Gas
Specifications
| Valve Type | Swing Check Valve |
| Connection Type | Flanged (ANSI B16.5) |
| Size | 2-inch (DN50) (nominal) |
| Body Material | Carbon Steel (A216 WCB) |
| Disc Material | Stainless Steel 316 (1.4404) |
| Seat Material | PTFE (Teflon)(PT-100) |
| Pressure Rating | 300 psi (20.7 bar) @ 100°F (38°C) |
| Temperature Range | -20°F to 400°F (-29°C to 204°C) |
| Cracking Pressure | 0.5 psi (0.034 bar) @ 100°F (38°C) |
| Flow Coefficient (Cv) | 0.75 (Example) - depends on valve trim and fluid properties |
| Leakage Class | Class IV (leakage rate 0.02 gpm at 150 psig) |
