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Pressure Sequence Valve Rexroth Interchangeable

Pressure Sequence Valve DZ 6 DP

MANUFACTURER Genuine Huade Hydraulic
STANDARDS ISO 4401 / DIN 24340
AVAILABILITY Factory Direct Stock
Pressure Sequence Valve DZ 6 DP
TECHNICAL REPLACEMENT NOTICE

This Huade® directional control valve serves as a 100% direct drop-in replacement for Bosch Rexroth PRESSURE-SEQUENCE-VALVE-DZ-6-DP equivalents. Dimensions, mounting interfaces, and technical parameters are identical. Designed for cost reduction in industrial and mobile hydraulic systems.

• Product features: Direct operated design, Rexroth-compatible performance, 5 pressure stages with multiple adjusting elements

• Specifications: DZ 6 DP series, inlet pressure up to 31.5 MPa, max flow up to 60 L/min

• Applications: Lifting and transportation machinery, construction machinery, industrial vehicles, machine tools, ships, metallurgy equipment

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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

The valve type DZ 6 DP is a direct operated pressure sequence valve. Through two long-term and in-depth cooperation with Rexroth, Huade® hydraulic pressure valves can match Rexroth in performance. This pressure sequence valve can be widely used in the hydraulic system of lifting and transportation machinery, construction machinery, industrial vehicles, machine tools, ships, metallurgy and other equipment.

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

Fluid cleanliness Maximum permissible degree of contamination of the fluid to NAS 1638 Class 9

Key Features

  • For subplate mounting
  • 5 pressure stages
  • 4 Adjusting elements:
  • Rotary knob
  • Head screw with hexagon and protective cap,
  • Lockable rotary knob with scale
  • Rotary knob with scale
  • Check valve,optional
  • Mounting pattern to DIN 24 340, form A, ISO 4401 and CETOP - RP 121H

Industrial Applications

  • Pressure Sequence Valve DZ 6 DP is used for the pressure dependent connection of a second system.
  • The setting of the sequence pressure is via the adjusting element(4).
  • The spring (3) holds the control spool(2) in the neutral position, the valve is blocked. The pressure in channel P is present at the spool surface of the control spool (2) opposite the spring (3) via the control line (6).
  • If the pressure in channel P reaches the set value of the spring (3) the control spool (2) is moved to the left and the connection P to A is opened. The system at channel A is connected without a pressure decrease falling in channel P.
  • The control signal originates internally via the control line (6) from channel P or externally via port B (X).
  • Depending on the use of the valve the leakage oil drain is externally via port T(Y) or internally via A.
  • structure of DZ 6 DP 1 -50B
  • Symbols of DZ 6 DP-10B

Technical Parameters

Mechanical ratings and operating limits for the Pressure Sequence Valve DZ 6 DP:

Parameter / Dimension Name Value / Rating Specification
Technical Data Technical Data
Inlet pressure,port P, B (X） (MPa) up to 31.5
Outlet pressure,port A (MPa) to 21.0
Back pressure,port T  (MPa) to 16.0
Max.permissible flow (L/min) to 60
Fluids Mineral oil (for NBR seal),or phosphate ester (for FPM seal)
Viscosity range(mm ²/s) 10~800
Fluid temperature range(℃) -30 up to +80
Fluid cleanliness (um) Fluid cleanliness Maximum permissible degree of contamination of the fluid to NAS 1638 Class 9
Max.flow (L/min) up to 60

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