Sanitary Safety Vacuum Pressure Relief Valves
- Model:
- VRT-22
- Place of Origin:
- Wenzhou, China
- Packing:
- Suitable Packing for Sea/Air Transport
- Quantity:
- 10000 PCS Per Year
- Payment:
- T/T, L/C, Western Union
- Material:
- SS304, SS316L
- Connection:
- Clamped
A sanitary pressure relief valve featuring manual set-point calibration adjusts relieving thresholds through an external threaded sleeve without dismantling process connections. Clamped atop hygienic process vessels, rotation of the calibrated bonnet adjusts internal spring compression directly, establishing exact pop-open limits for headspace gases while securing rapid reseating when line tension normalizes.
Dynamic Batch Modulation and Process Flexibility Requirements
Modern fermentation facilities alter vessel pressures across changing production phases. Fixed-tension hardware forces maintenance technicians to swap out internal spring assemblies between recipes, causing labor downtime and introducing line exposure risks.
Field-tunable sanitary pressure relief valves eliminate redundant hardware inventories. Plant personnel rotate the indexed collar to adjust release points between 0.5 bar and 3.0 bar, sustaining accurate vessel containment across changing formulation stages.
Vessel Atmospheric Dynamics and Calibrated Mechanical Actions
| Operating State | Headspace Pressure Dynamic | Tank Structural Risk | Autonomous Mechanical Response |
|---|---|---|---|
| Cold CIP Sanitization | Sudden vacuum below -0.05 bar | Thin-wall tank implosion | Reverse disc lifts to draw displacement atmosphere |
| Active Fermentation Surge | Gaseous build exceeding 2.2 bar | Tank rupture and gasket failure | Tuned spring lifts upper seal disc to vent surplus gas |
| High-Volume Product Transfer | Liquid withdrawal generating suction | Shell distortion and seal pulling | Negative seat unseats to normalize internal headspace |
| High-Temperature SIP | Thermal expansion past design limit | Flange distortion and gasket leaks | Main discharge poppet vents excessive steam volume |
Independent Vacuum Discs and Micro-Finished Fluid Boundaries
Mechanical decoupling guarantees that manual positive pressure adjustments never alter negative pressure cracking points.
An independent sanitary vacuum relief valve sub-assembly positioned along the central stem unseats under fractional negative differentials, permitting sterile replacement air into the vessel dome before vacuum collapse happens.
Fluid-contact zones feature electropolished 316L stainless steel finished below 0.4 micrometers Ra to eliminate micro-crevice bacterial harborage. Self-draining flow geometries guarantee thorough chemical evacuation during clean-in-place cycles, preventing cross-batch contamination.
Spring Fatigue Diagnostics and Reseating Precision
Sustained processing efficiency requires routine spring calibration verification and elastomeric seat replacement. A factory-calibrated sanitary safety valve sustains repeatable crack-and-reseat precision across harsh thermal cleaning exposures.
Routine inspections of the dual concentric seals guarantee tight shut-off performance, preventing fluid leakage and protecting sterile process batches against outside atmospheric contaminants.
Product Description
| Product Name: | Pressure Vacuum relief Valve, Exhaust Valve |
| Valve Body Material: | SS304 or SS316L |
| Seal Material: | EPDM,FPM |
| Pressure: | 0.5-2 bar(Vaccum:0.3-0.9 bar) |
| Max. Working Temperature: | 120 degree C |
| Availably size: | 1" - 2" |
| Availably connection: | Weld,Clamp,Thread |
| Availably standard: | DIN,SMS,ISO,IDF |
Product Parameter
