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Duplomatic PRE*G – Pilot operated pressure relief proportional valves – OBE

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Duplomatic Oleodinamica designs and produces a complete range of hydraulic components that are suitable for all application sectors of both industrial and mobile fields.

The Duplomatic PRE*G valves are pilot operated pressure relief proportional valves with integrated electric proportional control and mounting interface in compliance with ISO 6264 (CETOP RP 121H) standards.

These valves are normally used to control hydraulic circuit pressure and enable the use of the full flow rate of the pump, even with settings approaching calibrated values.

The two-stage design and wide passages ensure reduced pressure drops thereby improving the system energy performance.

Pressure can be modulated continuously in proportion to the reference signal.

The valves are controlled directly by an integrated digital amplifier.

They are fitted with a manual pressure relief valve which is factory set to ≥15% of the maximum value in the pressure control range.

They are available in three sizes with flow rates up to 500 l/min and in four pressure control ranges up to 350 bar.

Product Specification

Description PRE10G PRE25G PRE32G
Maximum Operating Pressure 350 Bar 350 Bar 350 Bar
Maximum Flow 200 L/Min 400 L/Min 500 L/Min
Hysteresis <3% of p nom <3% of p nom <3% of p nom
Repeatability <+1% of p nom <+1% of p nom <+1% of p nom
Ambient Temperature Range -10 / +50°C -10 / +50°C -10 / +50°C
Fluid Temperature Range -20 / + 80°C -20 / + 80°C -20 / + 80°C
Fluid Viscosity Range 10 ÷ 400 cSt 10 ÷ 400 cSt 10 ÷ 400 cSt
Fluid Contamination Degree
According to ISO 4406:1999
class 18/16/13
According to ISO 4406:1999
class 18/16/13
According to ISO 4406:1999
class 18/16/13
Recommended Viscosity 25 cSt 25 cSt 25 cSt
Mass 5.5 Kg 6.3 Kg 8.5 Kg00

Duplomatic – PRE*G – Pilot operated pressure relief proportional valves – Data Sheet

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