Series 121F Pressure and Vacuum Relief Valves
- Weight or spring loaded models available.
- Choice of body materials.
- Removable stainless steel seats.
- Low ambient temperature version available.
- Full flange.
- ANSI and DIN flanges.
- Self draining body.
Whessoe 400A Flame Arrestors
- Concentric and eccentric model variants available.
- Fabricated housings.
- Advanced crimped stainless steel element construction as standard. Other materials available.
- Mounted vertically or horizontally.
- Uni-directional.
- Can be used in combination with a pressure/vacuum valve.
- Independently tested and certified.
- Manufactured to ISO 9001:2008.
Whessoe 4020A Pressure and Vacuum Relief Valves
- Weight or spring loaded models available.
- Choice of body materials.
- Removable stainless steel seats.
- Low ambient temperature version available.
- Full flange.
- ANSI and DIN flanges.
- Self draining body.
Safety Selector Valve
- Provides high Cv values, resulting in less than 3% pressure drop to the active PRV inlet, reducing destructive valve chatter.
- One minimally sized penetration into the vessel or pipe reduces costs.
- Reduces field installation costs and space requirements through preassembled and compact design.
- Provides process isolation of standby PRV.
- Allows PRV maintenance without process shutdown.
- Bleed valve under each PRV vents entrapped process effectively and safely prior to removal for maintenance.
- Clear, positive indication of active PRV.
- Foolproof provisions for dual padlocking in either PRV position.
- Tested packing design and minimal leak points reduce fugitive emissions.
- No seat lapping required for maintenance. Minimal spare parts reduce cost of ownership.
- Simple operation with built-in seat equalization and no special tools minimizes total valve operating time.
- Tandem system available for dual PRV's discharging to a closed header system.
Anderson Greenwood 5910C
- Element and shroud optimized for flow efficiency
- Oversized pressure and vacuum ports provide maximum flow capacity
- Easily removed hood and elements for inspection and maintenance
- Replaceable and interchangeable pressure and vacuum seat rings
- Modular design allows for reduced number of spare parts required