PRESSURE CONTROL VALVES — PRESSURE REDUCING VALVES

HD-ZDR6D/ZDR10D SERIES

The HD-ZDR6D/ZDR10D series by Huade is a direct-acting pressure reducing valve in sandwich plate modular format. It reduces system pressure to a set secondary value and maintains it constant, with integrated overpressure limiting in the secondary circuit.

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Details

Available sizes: 6 (CETOP 3, series 4X) – 10 (CETOP 5, series 5X)
Maximum operating pressure: 210 bar
Maximum flow rate: 50 l/min
Direct actuation
Compatible fluids: mineral oil (NBR seals); phosphate ester (FPM seals)

12-MONTH WARRANTY

Benefits

Secondary pressure remains constant regardless of primary pressure
Integrated secondary overpressure limiting, with no need for a separate relief valve
Direct control of secondary pressure with no need to add external measurement points to the circuit
Reduced footprint (no additional fittings or pipework required)

Applciations fields

Application fields

Low-pressure auxiliary circuits
Machine tools
Hydraulic presses
Industrial systems with modular subplate assemblies
Circuits with actuators requiring differentiated working pressures

Technical data sheet

Technical datasheet HD-ZDR6D/ZDR10D series Huade

Code

Size

Q max (l/min)

P max (bar)

ZDR6D (40B)

210

ZDR10D (50B)

210

Code ZDR6D (40B)

Size 6

Q max (l/min) 50

P max (bar) 210

Code ZDR10D (50B)

Size 10

Q max (l/min) 80

P max (bar) 210

Download catalogue HD-ZDR6D Series

Download catalogue HD-ZDR10D-40B

Rexroth cross-reference

Huade HD-ZDR6D and ZDR10D: the alternative to Rexroth ZDR6D and ZDR10D pressure reducing valves

The Huade HD-ZDR6D and HD-ZDR10D are direct-acting pressure reducing valves in sandwich plate format. They are the alternative to Rexroth ZDR6D (series 4X) and ZDR10D (series 5X): same ISO 4401 sandwich format, to reduce the pressure on one line of the circuit.

Series cross-reference

Rexroth series	Huade series	Size / interface	Max flow	Max pressure
ZDR6D (4X)	HD-ZDR6D (40B)	NG6 – Cetop 3 sandwich	50 l/min	210 bar
ZDR10D (5X)	HD-ZDR10D (50B)	NG10 – Cetop 5 sandwich	80 l/min	210 bar
ZDR6DP0	HD-ZDR6DP0	NG6 – Cetop 3	7 l/min	40 bar fixed

Why choose it instead of the original

Direct actuation, compact sandwich: a second pressure level on one actuator without extra piping.
24-month warranty and every unit tested on our test bench in Gallarate (Italy) before shipment.
Delivery: 24–48 hours for stock items, 2 weeks standard.
Technical support: our engineers convert your current code and check the installation with you.

What we check before confirming the replacement

Size and series
Line to be reduced (A, B or P)
Secondary pressure range
Seals: NBR or FPM

Send us your Rexroth code

We return the equivalent code, checked by our technical team, with price and delivery time.

Get the equivalent code

Frequently asked questions

Which valve replaces a Rexroth ZDR6D?

The Huade HD-ZDR6D (series 40B): Cetop 3 sandwich, up to 50 l/min and 210 bar.

And a Rexroth ZDR10D?

The Huade HD-ZDR10D (series 50B): Cetop 5 sandwich, up to 80 l/min and 210 bar.

How do I get the equivalent code?

Send us the full Rexroth ZDR6D / ZDR10D code from the nameplate: our technical team returns the equivalent HD-ZDR6D / ZDR10D code, checked for size, version and seals.

Rexroth, Voith and the series names mentioned are trademarks of their respective owners and are used only to indicate compatibility. Hydraut Europe S.r.l. is not affiliated with these companies. Interchangeability is confirmed code by code by our technical team.