Sanitary Pressure Relief Reducing Vacuum Valve
- Model:
- JOV-ABH001-22
- 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 safeguards sealed stainless steel storage vessels from structural overpressure rupture and vacuum shell buckling. Clamped directly onto vessel dome nozzles with hygienic gaskets, the spring-loaded poppet unseats automatically when internal headspace pressure rises above set limits to release excess vapor, reseating tightly upon pressure normalization to maintain a sterile atmospheric barrier against microbial contamination.
Thermal Condensation Shock and Shell Buckling Prevention
Washing hot storage vessels with cool sanitizing liquid causes rapid steam condensation, producing violent internal vacuum spikes capable of crushing vessel walls inward.
Installing an integrated sanitary vacuum relief valve eliminates this implosion hazard. Its secondary atmospheric intake disc lifts during slight negative pressure differentials, drawing filtered replacement air into the tank headspace before structural deformation occurs.
Processing Vessel Dynamics and Mechanical Protective Actions
| Operational Scenario | Headspace Dynamic | Physical Threat | Protective Mechanical Response |
|---|---|---|---|
| Cold Post-SIP Wash | Rapid negative pull below -0.05 bar | Vessel shell implosion | Reverse intake disc lifts to admit displacement air |
| Blanketing Gas Accumulation | Continuous pressure above 2.2 bar | Vessel rupture and joint leakage | Primary spring compresses to exhaust excess vapor |
| Rapid Discharge Pumping | Liquid drop creating headspace suction | Shell deformation and pump cavitation | Secondary intake seat unseals for pressure normalization |
| High-Temperature Sterilization | Thermal expansion exceeding limits | Flange deformation and seal blowouts | Calibrated discharge port vents excessive steam volume |
Supply Header Regulation Boundaries and Electropolished Metallurgy
Plant engineering rules establish that an upstream sanitary pressure reducing valve maintains uniform fluid supply pressure, whereas vessel rebreathers function strictly as emergency containment safeguards.
Wetted surfaces utilize electropolished 316L stainless steel finishes below 0.4 micrometers Ra to eliminate micro-crevice bacterial harborage. Self-draining flow geometries ensure thorough chemical evacuation during clean-in-place cycles, preventing fluid entrapment prior to batch fill operations.
Seal Face Integrity and Repetitive Sterilization Tolerances
Routine maintenance requires periodic seat inspection and elastomeric diaphragm replacement.
A calibrated sanitary relief valve delivers repeatable crack-and-reseat performance across repeated high-temperature steam-in-place cycles. Sustaining verified spring tension protects sterile storage vessels from batch contamination without requiring structural modifications to existing vessel nozzles.
Technical Data
| Medium Temperature: | ≤120 celsius degree |
| Medium: | Gas |
| Strainer Elemant Material: | PTFE |
| Body Material: | SS304,SS316L |
| Connection of Standard: | DIN,3A,SMS,ISO |
| Ends: | Male ends,Tri clamp ends,Welded ends |
| Surface treatment: | Ra 0.8um |
