Wika IV20 and IV21

Block-and-bleed valve

2-valve manifold


  • Shut off and vent pressure measuring instruments.
  • For gaseous and liquid aggressive media that are not highly viscous or crystallising, also in aggressive environments.
  • Process industry: Oil & gas, petrochemical, chemical industries, power generation, water and wastewater.

Special Features

  • Low-wear design due to non-rotating spindle tip in the bonnet.
  • Low torque and smooth operation of valve handle even at high pressure.
  • Enhanced safety due to blow-out proof bonnet design.
  • Valve seat tested for leak tightness per BS6755 / ISO 5208 leak rate A.
  • Customer-specific combination of valves and instruments (hook-up) on request.