Anderson Greenwood Safety Selector Valve

Anderson Greenwood Safety Selector Valve

A dual pressure relief device system that provides a safe, efficient method of switching from an active PRV to a standby, maintaining system overpressure protection.


Any questions?

Kenneth Olsson
Account Manager
Phone. +46 54-57 92 04

Joachim Nyqvist
Solution Seller
Phone. +46 54-57 92 17

Anders Praem
Inside Sales Engineer
Phone. +45 2137 7759

Frank Kirk Hansen
Area Account Manager West
Phone. +45 4053 6511

Slawka Pedersen
Inside Sales Manager
Phone. +45 2137 7702

Aleksei Seleznev
Inside Sales Engineer
Phone. +358 40 530 2017

Tommi Penttilä
Sales Manager Conventional Power
Phone. +358 207 416 208

Sizes 1"- 8"
Pressure rating ANSI #150 - #2500
Material valve body WCB, CF8M, Duplex, Inconel, Hastelloy, Monel etc (also NACE)
Material in trim PTFE, graphite, PEEK
  • 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.

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