Sanitary Pressure Relief Reducing Safety Hygienic Valve
- Model:
- JOV-ABH002-22
- Brand:
- J&O
- Material:
- SS304 / SS316L
- Connection:
- Clamped
- Gasket:
- EPDM
- Working Temperature:
- MAX. 120
- Payment:
- T/T, L/C, Western Union
A sanitary pressure relief valve protects closed hygienic processing vessels from catastrophic overpressure and thermal vacuum collapse while preserving sterile boundary integrity. Installed directly on storage tanks, fermentation vessels, and bioreactors via sanitary clamp fittings, the device opens automatically at a designated set point to discharge excess gaseous volume. Once internal conditions normalize, the precision-machined spring mechanism reseats the elastomeric plug, preventing ambient air ingress and bacterial contamination.
Thermal Condensation Hazards and Vacuum Breaker Mitigation
Process vessels face severe structural hazards during rapid thermal cleaning cycles. When hot clean-in-place fluids contact cooler tank atmospheres, rapid vapor condensation creates instant vacuum differentials capable of imploding thin-walled stainless vessels. Installing a dual-acting hygienic pressure relief valve resolves this operational risk. The integrated vacuum breaker disc responds to slight negative pressure differentials, admitting sterile displacement air into the chamber before structural deformation occurs.
Supply Line Regulation Boundaries and Electropolished Metallurgy
While a sanitary pressure reducing valve regulates upstream supply lines down to steady operating pressures, safety relief hardware operates strictly as an emergency protective threshold. Surface metallurgy demands an electropolished 316L stainless steel contact face with an internal finish below 0.4 micrometers Ra to eliminate micro-crevice bacterial harborage.
Operational Vessel Hazards and Mechanical Protection Responses
| Operational Scenario | Vessel Pressure Dynamic | Structural Hazard | Mechanical Protection Action |
|---|---|---|---|
| Thermal CIP Cold Rinse | Rapid condensation below -0.05 bar | Thin-wall tank implosion | Vacuum breaker disc lifts to admit displacement air |
| Fermentation Gas Accumulation | Progressive rise above 2.2 bar | Vessel rupture and seal blowout | Main spring compresses to vent excess volume |
| Rapid Product Evacuation | Downstream draw creating negative pull | Shell deformation and pump cavitation | Secondary intake seat opens for atmospheric equalization |
| High-Pressure Steam Sterilization | Thermal expansion exceeding operating ceiling | Gasket creep and structural fatigue | Calibrated relief port discharges overpressure |
Seat Calibration Standards and Sterilization Cycle Durability
Field validation mandates routine set-point verification and seat seal replacement. A properly calibrated sanitary safety relief valve maintains repeatable crack-and-reseat precision across thousands of steam-sterilization cycles. Inspecting the diaphragm assembly during scheduled line maintenance protects expensive production batches from batch-loss contamination and ensures seamless CIP draining without manual dismounting.
Technical Data
| Medium Temperature: | ≤120 celsius degree |
| Medium: | Gas |
| Body Material: | SS304,SS316L |
| Connection of Standard: | DIN,3A,SMS,ISO |
| Ends: | Male ends,Tri clamp ends,Welded ends |
| Surface treatment: | Ra 0.8um |
Product Parameter
