End-of-Line and Pipe-Away Pressure / Vacuum Relief Vent
RV, PR, and VRProtectoseal’s Pressure / Vacuum Relief Vents, also known as Breather Valves and Conservation Vents, have weight-loaded or spring-loaded pallets. Flow through the Pressure and Vacuum Relief Vent is controlled by the weight of the pallet or the spring force acting on the pallet to keep the device closed. Once the pressure or vacuum in the tank reaches the pallet closing force, the pallet will start to lift off the seat and allow flow through the vent.
- Features
- Specifications
- Options
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Description
- High performance and flow capacity
- Wide range of design/venting options and pressure/vacuum settings
- No measurable leakage below 90% of set pressures and <1SCFH at 90% of set pressure
- Lightweight and easy to handle and install
- Includes a weatherhood and mesh screen to keep foreign matter out
- Wide range of materials, sizes, alternative connection types, and proximity switches available
- Meets requirements of API Std 2000 and EN ISO 23800
- Sizes: 2” (DN 50) through 12” (DN 300)
- Flange Connections: ANSI 150LB RF. Other specifications are available on request
- Materials: Carbon Steel and 316 Stainless Steel. Other material types are available on request
- Weight Pallet Materials: Lead and 316 Stainless Steel
- Special Coatings: Carbon steel is painted orange unless otherwise specified. Other coatings and paints are available on request
- Flow Curves: Available on request
- Testing and Certifications: Designed and tested according to API2000 and EN ISO 28300
- Other flange connections are available on request
- Other material types are available on request
- Other coatings and paints are available on request
- Service goods repair kits are available, which include sealing components for regular maintenance
- Vents can be specially supplied with a flame arrester, inlet pipe or lining
