• Gate Valves
• Sluice Gate Valves and Penstocks
• Hydrants
• House Connection Valves
• Non-Return Valves
• Butterfly Valves
• Air Valves and Control Valves
• Accessories
• VAG FUV Strainer basket
• VAG FES Strainer Basket DIN 3247
• VAG Strainer (Dirt Trap)
• VAG FLEXINOX® Dismantling Joint
• VAG Dismantling Joint
• VAG TELEMAX Stem Extension
• VAG Telescopic Equipment for Underground Installation
• VAG Street Caps -Cast Iron
• VAG Street Cap - Plastic
• VAG ROTAG® Remote Control Systems
• VAG ROTOP® - Electric Drive
• VAG Shut-Off Valves with Brake-and-Lift Cylinder
• Animations

VAG Shut-Off Valves with Brake-and-Lift Cylinder

Application

• Safety valve in case of pipe breaks (high-speed shut-off valve)
• Pump check valve
• High-speed opening valve
• Turbine inlet safety valve

Product features

Closing and opening of a valve by way of a brake-and-lift cylinder with adjustable moving speed after electrical or mechanical activation of the hydraulically locked actuator.

• Connection console with integrated oil tank
• Lifting drive with hydraulic piston pump
• Separate hand pump
• Cylinder with mounted-on common control block
• Adjustable opening and closing times
• Stepped closing time with final position damper unit
• Position switch to signal the closed and open positions of the valve
• Terminal box housing all electrical connections
• Switching cabinet (optional)
• Option mounting units:
  • Bypass tap for manual operation (initiate closing by hand)
  • Oil-level switch
  • Thermostat in the oil tank
  • Oil filter with soiling indicator (mechanical or electrical)
  • Float actuation
  • Accumulator with pressure switch
  • Tripping device for pipe break device
  • Second motor pump (redundant drive)
  • Additional position switches for intermediate positions
  • Angle-of-rotation transducer for analogue position indicator
  • Enhanced corrosion protection (screwed connections of hydraulic lines made of stainless steel)

Required design specifications

• Valve type (EKN butterfly valve, RKV plunger valve, KHW ball valve)
• Area of application and/or place of installation (e.g.: pipe break device)
• Nominal diameter, pressure rating
• Maximum differential pressure
• Maximum flow velocity
• Arrangement of the actuator (e.g. in flow direction on the right)
• Moving direction of the brake-and-lift cylinder (e.g. falling against the direction of flow)
• Motor voltage / frequency and degree of protection
• Voltage and type of solenoid valve e.g. closed-circuit current – idle open
• Closing time / opening time