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Pressure Reducing Valve Rexroth Interchangeable

Pressure Reducing Valve DR 5 DP

MANUFACTURER Genuine Huade Hydraulic
STANDARDS ISO 4401 / DIN 24340
AVAILABILITY Factory Direct Stock
Pressure Reducing Valve DR 5 DP
Pressure Reducing Valve DR 5 DP - Image 2
TECHNICAL REPLACEMENT NOTICE

This Huade® directional control valve serves as a 100% direct drop-in replacement for Bosch Rexroth PRESSURE-REDUCING-VALVE-DR-5-DP equivalents. Dimensions, mounting interfaces, and technical parameters are identical. Designed for cost reduction in industrial and mobile hydraulic systems.

• Product features: Direct operated 3-way design, Rexroth-compatible technology, pressure relief function on secondary side
• Specifications: Max operating pressure 31.5 MPa, max secondary pressure 21.0 MPa, max flow 15 L/min
• Applications: Marine hydraulic systems, industrial pressure control applications

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100% Genuine Huade Direct factory authorized supply
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ISO 4401 Mounting ISO 4401 / Rexroth interchangeable
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Secure Packaging Sealed rust-proof global shipping

Technical Data Sheet

  • Product Overview
  • Features & Applications
  • Technical Parameters

Product Overview

Pressure reducing valve DR 5 DP is used to control the pressure in the hydraulic system. Due to introducing Rexroth technology, Huade® DR 5 DP series pressure reducing valves can replace the same type of Rexroth. Huade Hydraulic has a strict testing system to ensure the high quality of its products. The series of pressure control valves are widely used in marine hydraulic system.

up to 21.0;without non-return valve up to 31.5

Mineral oil (for NBR seal)or phosphate ester(for FPM seal)

Maximum permissible degree of contamination of the fluid is to NAS 1638 class 9.

Key Features

  • Subplate mounting
  • 5 pressure ratings
  • 4 adjustment elements
  • Rotary knob
  • Set screw with hexagon and protective cap,
  • Lockable rotary knob with scale
  • Rotary knob with scale
  • Check valve, optional
  • Porting pattern to DIN 24 340, form D, ISO 5781 and CETOP - RP 121H

Industrial Applications

  • Pressure reducing valve DR 5 DP is used to reduce the system pressure.
  • The valve type DR5 DP is a 3-way direct operated pressure reducing valve with a pressure relief function on the secondary side.
  • The secondary pressure is set by the pressure adjustment element (4). At rest, the valve is normally open and the pressure fluid can flow unhindered from port P to port A. The pressure in port A is at the same time, via the control line (6), present at the spool area opposite to the compression spring(3). When the pressure in port A exceeds the pressure level set at compression spring (3), the control spool (2) moves into the control position and holds the set pressure in port A constant.
  • The control and pilot oil are taken from port A via control line (6).
  • If the pressure in port A still increases due to external forces on the actuator, the control spool(2) moves still further towards the compression spring(3).
  • This causes a flow path to be opened at port A via control land (8) on the control spool (2) to the tank. Sufficient pressure fluid then flows to tank to prevent any further rise in pressure.
  • The spring chamber is always drained to tank externally via port T(Y).
  • For free return flow from port A to port P an optional check valve (5) can be fitted.
  • structure of DR 5 DP 3 10B
  • Symbols of DR 5 DP

Technical Parameters

Mechanical ratings and operating limits for the Pressure Reducing Valve DR 5 DP:

Parameter / Dimension Name Value / Rating Specification
Max.operating pressure(Port P) (MPa) up to 31.5
Max. secondary pressure (Port A) (MPa) up to 21.0;without non-return valve up to 31.5
Max.back pressure( Ports T(Y)) (MPa) up to 6.0
Max.flow (L/min) up to 15
Pressure fluid Mineral oil Mineral oil (for NBR seal)or phosphate ester(for FPM seal)
Viscosity range(mm ²/s) 10~800
Pressure fluid-temperature range(℃) -30 to +80
Degree of contamination (um) Maximum permissible degree of contamination of the fluid is to NAS 1638 class 9.
Weight (kg) approx.1.0

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