Walter Frank PRV9i
Westley Group > Walter Frank > PRV9i Home > Specification

Specification

  • 2.5” Full Bore
  • Valve performance exceeds BS5041 and BS9990 requirements (where PRV9i is to be used on Wet Riser Systems in buildings)
  • Design exceeds the requirements of BS5154 where applicable in hydrant design
  • Rated up to PN25 (operating conditions should be within the limitation of the rating of the inlet connection)
  • Outlet pressure should be set and locked; PRV9i is not designed to have a dynamically variable outlet pressure
  • Primary nitrile rubber sealing disc with secondary metal to metal seat – Marine/Offshore requirement. Renewable nitrile rubber primary seal designed for low cost and ease of replacement
  • All PRV9i hydrant valves are supplied with a cast finish as standard. Various painted finishes are available on request