200MPa–■RV-2000-3B■Hydraulic symbol li81l3 CyndersPumpsVavesAccessories300MPa–■ Specifications■ Specifications■ SpecificationsPilot Controlled Check Valve (CH-2000-43) Relief Valve (RV-2000-3B) Needle Valve (NV-2000-1B) ■Hydraulic symbol CH-2000-43Maximum flow rateL/min2.5RV-2000-3BMaximum flow rateL/min1.2■Hydraulic symbol NV-2000-1BMaximum flow rateL/min200Valves (200 MPa)*The maximum operating pressure of a pilot circuit is 70 MPa. Pilot port size RcApprox. weightkg3/8Return port RcApprox. weightkg3/82.3Approx. weightkgConnection port sizeM22 x 1.5Connection port sizeM22 x 1.5M22 x 1.5■CH-2000-43Cracking pressureMPaPilot area ratio 30:10.3Pressure setting rangeMPaAllowable back pressure MPa20 to 200■NV-2000-1BConnection port size1.2No.79E since2025● Enables a reverse flow by applying pressure 1/30 of the secondary-side pressure to the pilot pressure port. ● Generally, if the primary side is pressurized, the check valve cannot be opened.■CH-2000-43Maximum operating pressureMPaModelCH-2000-43200*● Fewer pressure fluctuations are an advantage. ● For pressure adjustment, loosen the lock nut first. To increase the pressure, turn the handle clockwise gradually. To reduce the pressure, turn it counterclockwise. After pressure adjustment, be sure to tighten the lock nut.■RV-2000-3BMaximum operating pressureMPaModelRV-2000-3B200● The hydraulic oil passage can be throttled for flow adjustment using the needle. As the temperature or pressure changes, the flow rate also changes.● Turning the handle clockwise throttles the pipe line.■NV-2000-1BMaximum operating pressureMPaModelNV-2000-1B212
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