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Threaded Check Valves - Series RK, RB

Picture for category Threaded Check Valves - Series RK, RB

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

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
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ActionSKUAvailabilityPriceWeightMaximum Operating TemperatureActuation TypeMaximum Flow RateBody MaterialProduct SeriesSeal MaterialConnection TypeConnection SizeConfigurationMaximum Operating PressureMinimum Operating TemperatureMounting TypeCracking PressureMounting PositionFlow DirectionDivisionThread SizeConfigurationMaximum Flow Rate
RB1
Backordered
POR
5 g60 °CMechanical20 L/minSteelCheck ValveNBRThread (DIN ISO 228/1)G1/4AMounted in the open flow direction700 bar-20 °CScrew-in mounting0.15 barUnrestrictedn/aIndustrial Systems Division EuropeG1/4AMounted in the open flow direction20 l/min
RB2
Backordered
POR
15 g60 °CMechanical50 L/minSteelCheck ValveNBRThread (DIN ISO 228/1)G3/8AMounted in the open flow direction700 bar-20 °CScrew-in mounting0.07 barUnrestrictedn/aIndustrial Systems Division EuropeG3/8AMounted in the open flow direction50 l/min
RB3
Backordered
POR
20 g60 °CMechanical80 L/minSteelCheck ValveNBRThread (DIN ISO 228/1)G1/2AMounted in the open flow direction500 bar-20 °CScrew-in mounting0.17 barUnrestrictedn/aIndustrial Systems Division EuropeG1/2AMounted in the open flow direction80 l/min
RK0
Backordered
POR
5 g60 °CMechanical10 L/minSteelCheck ValveNBRThread (DIN ISO 228/1)G1/8AMounted in the blocked direction700 bar-20 °CScrew-in mounting0.15 barUnrestrictedn/aIndustrial Systems Division EuropeG1/8AMounted in the blocked direction10 l/min
RK1
Backordered
POR
5 g60 °CMechanical20 L/minSteelCheck ValveNBRThread (DIN ISO 228/1)G1/4AMounted in the blocked direction700 bar-20 °CScrew-in mounting0.18 barUnrestrictedn/aIndustrial Systems Division EuropeG1/4AMounted in the blocked direction20 l/min
RK2
Backordered
POR
15 g60 °CMechanical50 L/minSteelCheck ValveNBRThread (DIN ISO 228/1)G3/8AMounted in the blocked direction700 bar-20 °CScrew-in mounting0.2 barUnrestrictedn/aIndustrial Systems Division EuropeG3/8AMounted in the blocked direction50 l/min
RK3
Backordered
POR
20 g60 °CMechanical80 L/minSteelCheck ValveNBRThread (DIN ISO 228/1)G1/2AMounted in the blocked direction500 bar-20 °CScrew-in mounting0.25 barUnrestrictedn/aIndustrial Systems Division EuropeG1/2AMounted in the blocked direction80 l/min

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