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Duplomatic MRQ – Pilot Operated Pressure Relief Valve

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Duplomatic Oleodinamica represents the real alternative in the hydraulics market.

Duplomatic’s wide range of products and worldwide service network, grant its users a real competitive advantage.

The Duplomatic MRQ valve is a pilot operated pressure relief valve made as a modular version with mounting surface according to ISO 4401 (CETOP RP 121H) standards.

It can be assembled with all ISO 4401-03 (CETOP 03) modular valves without the use of pipes, using suitable tie-rods or bolts.

It is available in versions for single adjustment on one control line or dual on two control lines and with four different pressure adjustment ranges.

This valve is normally used as a hydraulic circuit pressure limiting device.

It is normally supplied with a hexagonal head adjustment screw, locking nut and limitation of the maximum adjustment travel.

P max 350 bar – Q max 75 l/min

Product Specification

Description Units
Maximum Operating Pressure 350 bar
Maximum Flow Rate 75 l/min
Ambient Temperature Range -20 / +50 °C
Fluid Temperature Range -20 / +80 °C
Fluid Viscosity Range 10 ÷ 400 cSt
Fluid Contamination Degree According to ISO 4406:1999
Class 20/18/15
Recommended Viscosity 25 cSt
MRQ-SP / MRQ-SAT / MRQ-SBT / MRQ-SB Mass 1,4 kg
MRQ-DT / MRQ-D Mass 2,1 kg

Duplomatic – MRQ – Pilot Operated Pressure Relief Valve – Data Sheet

Additional Information



Modular Stack Valves

Pressure Control Relief Valves


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