Sanitary Pressure Relief Reducing Safety Valves
- Model:
- JOV-ABH003-22
- 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 hygienic storage vessels and bioreactors from sudden overpressure rupture and catastrophic thermal vacuum implosion. Mounted directly onto vessel dome nozzles using quick-disconnect clamp unions, the calibrated spring assembly opens when internal vapor forces exceed a pre-calibrated limit to exhaust excess gaseous volume, reseating securely once operating equilibrium returns to maintain continuous sterile boundary integrity.
Thermal Condensation Dynamics and Thin-Wall Buckling Prevention
Hygienic process vessels face extreme mechanical stress during temperature transitions. Flushing hot vessels with cool sanitizing wash creates sudden steam condensation, generating violent internal vacuum differentials capable of crushing stainless steel vessel shells inward.
Modern dual-action sanitary pressure relief valves eliminate this deformation threat through concentric seating geometry. The secondary vacuum plate reacts to minute negative differentials, drawing sterile replacement atmosphere into the vessel interior before mechanical wall buckling occurs.
Processing Vessel Dynamics and Mechanical Protective Actions
| Operational Scenario | Vessel Pressure Dynamic | Structural Hazard | Mechanical Protection Action |
|---|---|---|---|
| Cold CIP Rinse Phase | Rapid vacuum below -0.05 bar | Thin-wall tank implosion | Reverse 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 |
| High-Volume Fluid Pumping | Downstream pull creating negative headspace | Shell deformation and cavitation | Vacuum port admits filtered ambient air |
| Hot Steam Sterilization | Expansion surpassing operational limits | Joint failure and mechanical fatigue | Calibrated relief port discharges overpressure |
Supply Line Regulation Boundaries and Electropolished Metallurgy
Plant safety guidelines dictate a dedicated sanitary pressure reducing valve regulates continuous incoming fluid pressure, whereas relief hardware serves strictly as an emergency containment envelope.
Wetted components require electropolished 316L stainless steel finishes below 0.4 micrometers Ra to eliminate micro-crevice bacterial harborage. Self-draining flow channels prevent process fluid stagnation during clean-in-place cycles, ensuring complete chemical drainage prior to production restarts.
Seating Surface Calibration and Repetitive Steam Durability
Routine line audits mandate continuous set-point verification and periodic seal replacement. A factory-calibrated sanitary safety relief valve sustains tight reseating tolerances across numerous high-temperature steam sterilization cycles.
Regular visual inspection of the internal sealing surfaces ensures repeatable crack-and-reseat precision, protecting valuable production batches from batch contamination without interrupting planned manufacturing schedules.
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
