Sanitary Safety Relief Pressure Reducing Valves
- Model:
- JOV-EXH002P-22
- Brand:
- J&O
- Material:
- SS304 / SS316L
- Connection:
- Clamped
- Gasket:
- EPDM
- Working Temperature:
- MAX. 90
- Working Pressure:
- 1.0MPa
- Payment:
- T/T, L/C, Western Union
A sanitary pressure relief valve engineered with an integrated pressure dial purges accumulated gas pockets from process conduits while displaying real-time system working tension. Installed at elevated piping elbows or pump discharge manifolds, the spring-actuated sealing stem opens autonomously when compressed headspace gas exceeds calibrated set-points, discharging entrained vapors and reseating smoothly once fluid column density normalizes.
Pump Cavitation Avoidance and Vapor Pocket Scavenging
Air entrapment along high-velocity process lines generates fluid turbulence and erratic flow patterns. Entrained gas drawn into downstream sanitary pumps collapses violently against rotating impellers, causing cavitation pitting, mechanical seal distortion, and product emulsification.
Strategically placed sanitary relief valves counteract this hydraulic degradation. The internal float mechanism responds to gaseous displacement, unseating instantly to vent localized bubbles before they enter pump suction ports and damage expensive rotating equipment.
Hydraulic Line Behaviors and Mechanical Mitigation Measures
| Process Condition | Conduit Velocity Dynamic | Physical Failure Risk | Automatic Mechanical Action |
|---|---|---|---|
| Transfer Pump Priming | Gas compression past 1.6 bar | Severe impeller cavitation | Air orifice remains open to expel entrained vapor pockets |
| Rapid Product Transfer | Velocity surges exceeding 3 m/s | Downstream hydraulic shock | Sealing disc lifts momentarily to absorb pressure spikes |
| Thermal Clean-In-Place | Vapor expansion past set limit | Pipeline gasket failure | Relief port exhausts steam volume to balance line tension |
| Static System Fill | Displaced atmosphere buildup | Fluid stagnation and air pockets | Upper poppet discharges air until liquid buoyancy seals seat |
Continuous Supply Stabilization and Micro-Finished Metallurgy
Process fluid schematics specify that an upstream sanitary pressure reducing valve regulates continuous distribution pressure, whereas conduit air vent valves perform dedicated gas evacuation and surge containment.
Wetted components feature electropolished 316L stainless steel surfaces finished below 0.4 micrometers Ra to eliminate micro-crevice bacterial growth. Smooth transitions along internal passages ensure thorough chemical sweeping during cleaning cycles, preventing batch cross-contamination.
Gauge Re-Calibration Standards and Seat Durability
Sustained processing efficiency requires routine Bourdon tube inspection and elastomeric seat replacement. A factory-verified sanitary safety valve maintains repeatable crack-and-reseat precision across harsh thermal cleaning exposures.
Periodic calibration checks ensure dial accuracy remains within specified tolerances, delivering reliable visual feedback and protecting product integrity across uninterrupted production schedules.
Technical Data
| Working Pressure: | ≤10bar |
| Pressure Control Range: | 0.5-10 bar |
| Medium Temperature: | ≤120 celsius degree |
| Medium: | Gas |
| Sealing: | EPDM |
| Material Quality: | SS304,PP |
| Connection of Standard: | DIN,3A,SMS,ISO |
| Ends: | Male ends,Tri clamp ends,Welded ends |
| Surface treatment: | Ra 0.8um |
Product Parameter




