Valves Vacuum Relief VRA SPX FLOW
Valves & PipingPrice on request
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Description
Vacuum relief valve. Function: Prevent vacuum damage by admitting air. Housing combinations: 11. Port connections: Buttweld (W), hygienic flange (F). Port sizes: DN50, DN100, DN150. Actuator: Seat lift (SL). Control unit: AAOA no CU, HPON prox holder only. Actuator connectors: 6 mm air fittings, 2X/3X no CU. Seat type: TR – elastomeric profile seal. Seal materials: EPDM, FPM, HNBR. Surface finish: 10 – 1.6 μm, 11 – 0.8 μm with electro-polish. Options: A0 none, B7 large outlet port (VRA11 only), N1 3.1 flange.
Possible Applications
The VRA vacuum relief valve is primarily deployed in sanitary processing systems to protect thin-walled stainless steel storage tanks and heat exchangers from structural collapse during rapid cooling cycles or high-speed liquid drainage. In the dairy and beverage industries, these valves are essential for preventing implosion when steam-sterilized vessels undergo sudden thermal contraction or when centrifugal pumps create excessive negative pressure during product transfer. By automatically admitting filtered air into the process line, the valve maintains atmospheric equilibrium, ensuring the integrity of hygienic piping networks and sensitive processing equipment. Its design is specifically suited for clean-in-place circuits where maintaining vacuum-free conditions is critical to preventing air ingress that could compromise product quality or damage internal vessel linings.
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Specifications
| Category | Valves & Piping |
| Product ID | 8697108118-2411 |
| Manufacturer | SPX FLOW |
