Combined Isolation and Non Return Valves

Combined Isolation and Non Return Valves

  • Basic Design in spheroidal cast iron DN 200 – 1200
  • Available in materials of construction to either suit application or client specification
  • Fabricated steel design up to DN 4000
  • Pressure Rating PN 2.5 – 40
  • For back flow prevention with combined isolation and non-return functionality. 
  • Application examples: emergency turbine shut off in event of pipe rupture; back flow protection in pumping stations for service and cooling water supplies

Design

  • Defined open position with constant Kv value
  • Controlled closing via counterweight with controlled speed (single or two stage)
  • Complete tight shut off in closed position via cylinder actuator
  • Valve opening controlled by hydraulic actuator system
  • Locked safely in open position by either solenoid valve or mechanical lock
  • Hydraulic power for arrangement nearby or directly to valve (optional) equipped with all necessary operating device e.g. flow control valves / pressure release valve
  • Emergency manual operation available on power pack
  • Electrical control unit can also be supplied as an option to meet client specifications
  • Internal disc locking device options
  • External shaft locking device  option

To discuss your particular requirements, please contacts us by sending us an Email: Info@SpecialisedValveSolutions.com