Threaded Check Valves – Series RK, RB

Parker's very robust check valves series RK and RB ensure a reliable operation even at high operating pressures (up to 700 bar). They are designed to be screwed into simple, threaded cavities. The connection is O-ring sealed on the 118° shoulder in the mounting cavity. The valve body is supplied as a unit, with a spring loaded, hardened and polished semisphere of stainless bearing steel inside. The seat is also hardened and ground.

Markets:
• Industrial

Features/Benefits:
• Proven, solid design – very good wear behaviour
• Zero leakage in closed position – ensures reliable operation
• Short delivery time – no warehousing necessary
• Two variations:
  – RK: mounted in the blocked direction
  – RB: mounted in open flow direction

Applications:
• Suitable for general hydraulic applications