Duplomatic Unloading Valve With Automatic Or Solenoid Actuated Venting For Circuit With Accumulator, Type RQ*M*-P

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Duplomatic

Duplomatic Unloading Valve With Automatic Or Solenoid Actuated Venting For Circuit With Accumulator, Type RQ*M*-P - Unloading valve with automatic or solenoid actuated venting for circuit with accumulator

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Description

RQRM3-P, RQRM5-P, RQRM7-P, RQA5M-P and RQA7M-P are unloading valves with solenoid actuated venting, for subplate mounting. These valves are specific for circuits with accumulator, to optimize the energy consumption of the pump. They act deviating all the pump flow to the tank when the pressure value adjusted by the screw is reached, until the pressure in the working line B drops to a percentage (63% or 75%, depending by the version) of the set pressure or when the solenoid valve is switched-off. Then, the pump flow to the circuit is restored by means of the check valve until set pressure is reached or until the solenoid valve is switched-off again. RQAM5-P and RQAM7-P are already equipped with the check valve. Instead, RQRM3-P, RQRM5-P and RQRM7-P have a X port to pilot a remote check valve. The valve is available with DC or AC solenoids. Three pressure control ranges up to 280 bar are available, adjustable by a hexagonal head screw. Upon request they can be equipped with a SICBLOC adjustment knob.

Key Features

• Max Working Pressure is 350 bar • Max Flow Rate is RQRM3: 200 l/min, RQRM5: 400 l/min, RQRM7: 500 l/min • Adjustment Type is Hex screw or SICBLOC knob • Mounting Type is Subplate ISO 6264 • Solenoid Control is Solenoid-operated unloading (electrical venting) • Accumulator Use is Yes, with internal or external drainage

Downloads

Datasheet_RQ_M_-P.pdf

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Specifications

Max Working Pressure
350 bar
Max Flow Rate
RQRM3: 200 l/min, RQRM5: 400 l/min, RQRM7: 500 l/min
Adjustment Type
Hex screw or SICBLOC knob
Mounting Type
Subplate ISO 6264
Solenoid Control
Solenoid-operated unloading (electrical venting)
Accumulator Use
Yes, with internal or external drainage
Mass
RQRM3: 5 kg, RQRM5: 5.8 kg, RQRM7: 8 kg
Fluid Temperature Range
-20°C to +80°C
Ambient temperature range
-20°C to +50°C
Fluid Viscosity Range
10 ÷ 400 cSt
Recommended viscosity
25 cSt
Contamination Class
ISO 4406:1999 class 20/18/15

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