CyndersPumpsliVavesAccessories300MPa–1 l 3200MPa–■ Specifications■ Specifications■ Specificationscat-No.78E since2017Valves (200 MPa)Pilot Controlled Check Valve (CH-2000-43) ● 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 ModelpressureMPa200*CH-2000-43*The maximum operating pressure of a pilot circuit is 70 MPa. Relief Valve (RV-2000-3B) ● 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 ModelpressureMPa200RV-2000-3BModelMaximum operating pressureNV-2000-1B■Hydraulic symbol CH-2000-43Maximum flow rateL/min2.5■Hydraulic symbol RV-2000-3BMaximum flow rateL/min1.2■Hydraulic symbol NV-2000-1BMaximum flow rateMPa200■CH-2000-43Pilot area ratio Cracking pressureMPa30:10.3■RV-2000-3BPressure setting rangeAllowable back pressure MPa20 to 200■NV-2000-1BConnection port sizeL/min1.2Connection port sizeM22 x 1.5Connection port MPasizeM22 x 1.5M22 x 1.5Approx. weightPilot port size Rckg83/8Return port Approx. weightRckg2.33/8Approx. weightkg212Needle Valve (NV-2000-1B) ● 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-2000-1B
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