Sanitary Stainless Steel Welded Spring Ball Check Valve
- Model:
- JOV-CH003-11
- Brand:
- J&O
- Material:
- SS304 or SS316L
- Connection:
- Welded
- Gasket:
- Silicone, EPDM, Viton, NBR
- Working Temperature:
- -10 degree to +120 degree (EPDM)
- Working Pressure:
- 0.3 Bar (DN-25), 0.2 Bar (DN-32/40),0.1Bar(DN-50/100)
- Payment:
- T/T, L/C, Western Union
A sanitary check valve allows process liquid to move in one direction and closes when reverse pressure develops, reducing backflow that can drain pump prime or contribute to water hammer. A union-style configuration also supports valve removal for inspection when the connection is designed for disassembly.
Why Cracking Pressure Matters at Startup
A sanitary spring check valve remains closed until inlet pressure exceeds the spring force and the specified cracking pressure. As forward pressure falls, the spring returns the sealing element toward its seat; reverse pressure reinforces closure. If cracking pressure is too high for the available pump differential, flow may be restricted during startup or low-flow operation.
The listed model offers SS304 or SS316L construction with silicone, EPDM, Viton, or NBR seal options. EPDM operating temperature is specified as −10°C to +120°C. Seal selection should match the process fluid, cleaning chemistry, and actual temperature cycle.
Choosing the Internal Check Mechanism
A sanitary ball check valve uses a movable ball as its sealing element. Its behavior differs from a spring-loaded plug or disc design in areas such as movement, orientation limits, and pressure drop. The correct arrangement depends on the required flow rate, installation position, and resistance to reverse pressure.
| Selection factor | What to confirm | Purpose |
|---|---|---|
| Cracking pressure | Required inlet pressure for opening | Checks compatibility with pump operation |
| Seal compound | Fluid and cleaning compatibility | Supports reliable sealing |
| Pipe connection | Union, clamp, or welded ends | Ensures proper installation |
| Surface finish | Specified internal roughness | Supports cleaning requirements |
| Flow direction | Arrow marking and mounting orientation | Prevents incorrect installation |
Union or Clamp Connections
A clamped check valve uses mating ferrules and a gasket, allowing the joint to be opened for inspection or seal replacement. A union connection uses its specified union geometry and nut to secure the assembly. These connection types should not be treated as interchangeable; end dimensions and pipeline standards must match.
Matching the Valve to the Process
Applications listed for this valve category include dairy, food and beverage, cosmetics, pharmaceuticals, and chemical processing. Before ordering, the connection configuration, size drawing, opening pressure, rated working pressure, and seal material should be confirmed against the intended installation. These details determine whether the valve can prevent reverse flow without adding an unsuitable restriction to the process line.
Technical Data
| Product Name: | Sanitary Check Valve |
| Material: | SS304 or SS316L |
| Standard: | 3A, SMS, DIN, RJT, IDF |
| Size: | 19mm - 200mm or DN15-DN100 |
| Connection Way: | Weld |
| Seal Material: | Silicone, EPDM, Viton, NBR |
| Surface Finishing: | Ra≤0.8 |
| Working Temperature: | -10 degree to +120 degree (EPDM) |
| Opening Pressure: | 0.3 Bar (DN-25), 0.2 Bar (DN-32/40),0.1Bar(DN-50/100) |
| Packing Details: | within carton box or plywood case |
| Applied Industries: | Dairy, Cosmetic, Pharmaceutical, Food and Beverage Industries |
Product Parameter
Product Pictures
