Sanitary Stainless Steel Spring Non Return Check Valve
- Model:
- Place of Origin:
- Wenzhou, China
- Packing:
- Suitable Packing for Sea/Air Transport
- Payment:
- T/T, L/C, Paypal, Alipay
- Medium:
- Water, Oil
- Material:
- SS304/SS316L
- Connection:
- Clamped
- Specification:
- 1/2"-4"
A sanitary check valve functions as an automatic backflow preventer constructed for sterile process lines, utilizing upstream fluid pressure differentials rather than external power to permit forward stream progression while instantaneously arresting reverse flow. Operating through calibrated internal spring tension or gravitational seat return, the assembly isolates sensitive production loops from cross-contamination risks, vacuum collapse, and pump surge pressures across hygienic processing systems.
Cracking Pressure Calibration Across Sanitary Spring Check Valve Runs
Process piping stability requires matching media viscosity with calibrated spring resistance. In a sanitary spring check valve, an internal spring retains an elastomeric seal against the orifice until upstream pressure surpasses the predetermined opening threshold, typically calibrated between 0.05 and 0.30 bar.
Selecting improper spring rates causes flow flutter, disc chatter, and cavitation, whereas matched spring loading secures instantaneous shutoff before negative pressure waves trigger damaging hydraulic shock.
Serviceability and Light Clamp Integration Profiles
| Connection Interface | Internal Polymer Seal | Operational Flow Orientation | Working Pressure Boundary |
|---|---|---|---|
| Light Tri-Clamp Ferrule | Fluorocarbon FKM | Vertical Upflow Preferred | 10 Bar Maximum |
| Heavy Duty Bolted Flange | Ethylene Propylene EPDM | Horizontal Offset Plane | 16 Bar Maximum |
| Eccentric Orbital Butt Weld | Virgin PTFE Fluoropolymer | True Horizontal Axis | 16 Bar Continuous |
Gasket Compression in Stainless Steel Sanitary Check Valves
Routine inspection requires tool-free disassembly without piping distortion. Utilizing forged stainless steel sanitary check valves equipped with lightweight quick-release clamps accelerates maintenance access during scheduled seal replacements.
Precision-machined ferrule faces distribute clamping force evenly across the elastomeric gasket, preventing mechanical crevice formation and gasket extrusion into active product passages under continuous 140°C saturated steam sterilization.
Self-Drainage Geometries in Hygienic Non Return Valve Layouts
Preventing microbial proliferation requires full gravitational liquid evacuation following clean-in-place cycles. Installing an eccentric hygienic non return valve aligns the bottom internal wall flush with adjoining tubing, discharging residual wash solutions without pooling.
Internal contact surfaces electropolished below Ra 0.8 micrometer eliminate microscopic crevices, preventing biofilm accumulation and ensuring sterile boundary integrity across sensitive fluid loops.
Product Description
| Product Name: | Sanitary Tri Clamp Check Valve |
| Material: | SS304 or SS316L |
| Standard: | 3A, SMS, DIN, RJT, IDF |
| Size: | 12mm - 101.6mm or DN15-DN100 |
| 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
