PRESSURE RED.VALVE INTERMEDIATE PLATE ZDR6DA3-4X/150Y/12

Name: ZDR6DA3-4X/150Y/12
Price: 734.00 USD
Availability: OutOfStock

Manufacturer: Bosch Rexroth

Material #: R978858768

Model : ZDR6DA3-4X/150Y/12

$734.00 USD

More are expected on August 22, 2025

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Status: This product is temporarily out of stock.

This product is eligible for factory repair.

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PRESSURE RED.VALVE INTERMEDIATE PLATE ZDR6DA3-4X/150Y/12

Size 6, A2 → A1, mechanical

Industrial hydraulic valve in a high performance range. Reliable pressure reduction to setting value.

Unpacked Weight: 1.2 kg

Sandwich plate valve Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole) 4 pressure ratings 4 adjustment types:
• Rotary knob
• Sleeve with hexagon and protective cap
• Lockable rotary knob with scale
• Rotary knob with scale Pressure reduction in channel A, B or channel P Check valve, optional (version “A” only) Corrosion-protected design

The valve type ZDR is a direct operated pressure reducing valve in sandwich plate design with pressure limitation of the secondary circuit. It is used to reduce the system pressure.

The pressure reducing valve basically comprises housing (1), control spool (2), compression spring (3), adjustment type (4) and an optional check valve.

The secondary pressure is set via the adjustment type (4).

Version "A"

The valve is open in initial position. Hydraulic fluid can flow from channel A➀ to channel A➀ without restrictions. The pressure in channel A➀ is simultaneously applied via the control line (5) at the piston area opposite the compression spring (3). If the pressure in channel A➀ exceeds the value set at the compression spring (3), the control spool (2) is pushed against the compression spring (3) to control position and keeps the set pressure in channel A➀ at a constant level.

Control signal and pilot oil are supplied internally via the control line (5) from channel A➁.

If the pressure in channel A➀ increases further due to an external force effect at the actuator, it pushes the control spool (2) even further against the compression spring (3).

In this way, channel A➀ is connected to the tank via the control edge (9) at the control spool (2) and the housing (1). So much hydraulic fluid is discharged into the tank that the pressure does not increase any further.

The leakage oil drain from the spring chamber (7) is always effected externally via the bore (6) and channel T (Y).

A pressure gauge connection (8) allows for the control of the secondary pressure at the valve.

A check valve can be used for free flow back from channel A➀ to A➀ with version “A”.

Versions “P” and “B”

For version “P”, the pressure reduction is effected in channel P➀. Control signal and pilot oil are supplied internally from channel P➀.

For version “B”, the pressure is reduced in channel P➀; but the pilot oil is extracted from channel B.

Notice:

If the directional valve is in spool position P to A, the pressure in channel B may not exceed the set secondary pressure. Otherwise, there is pressure reduction in channel A.

Type ZDR 6 DA1-4X/.YM…

①	component side
②	plate side

Spool valve
direct operated
Pressure adjustment range 5…150 bar
Lockable rotary knob with scale
Maximum operating pressure 350 bar
Component series 4X
Maximum flow 50 l/min
Size 6

Data Sheet	Download Data Sheet
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Spool symbol	A2 → A1
Max. pressure	315
Productgroup ID	9,10,11,12,13,14
Number of ports	4
Type of actuation	with mechanical actuation
Size	6
Max. flow	50
Type of connection	Sandwich plate
Connection diagram NFPA	NFPA T3.5.1 R2-2002 D03
Size_CETOP	D03
Connection diagram	ISO 4401-03-02-0-05
Number of switching positions	2
Weight	1.2
Seals	NBR
Hydraulic fluid	HL,HLP,HLPD,HVLP,HVLPD,HFC

01	02	03	04	05	06		07		08	09	10	11	12	13	14
Z	DR	6	D			–	4X	/		Y					*

01	Sandwich plate valve	Z
02	Pressure reducing valve	DR
03	Size 6	6
04	Direct operated	D
05	Pressure reduction in channel A➁	A
	Pressure reduction in channel B➁	B
	Pressure reduction in channel P➁	P
Adjustment type
06	Rotary knob	1
	Sleeve with hexagon and protective cap ("J3" version without protective cap)	2
	Lockable rotary knob with scale	3 1)
	Rotary knob with scale	7
07	Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions)	4X
08	Secondary pressure up to 25 bar	25
	Secondary pressure up to 75 bar	75
	Secondary pressure up to 150 bar	150
	Secondary pressure 210 bar	210
	Secondary pressure up to 315 bar (only version "B", "P", and "2")	315
09	Internal pilot oil supply, external pilot oil return	Y
10	With check valve (only version "A")	no code
10	Without check valve	M
Corrosion resistance
11	None	no code
11	Improved corrosion protection (240 h salt spray test according to EN ISO 9227)	J3
Seal material
12	NBR seals	no code
	FKM seals	V
	Observe compatibility of seals with hydraulic fluid used.
13	Without locating hole	no code
	With locating hole	/60 2)
	With locating hole and locking pin ISO 8752-3x8-St	/62
13	Further details in the plain text	*

1)	H-Key with material no. R900008158 is included in the scope of delivery.
2)	Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order)

Notes:

For valve types for use in potentially explosive areas, refer to data sheet 07011. Preferred types and standard units are contained in the EPS (standard price list).

general

Size			6
Weight (approx.)		kg	1.2
Installation position			any
Ambient temperature range	NBR seals	°C	-30 … +80
Ambient temperature range	FKM seal	°C	-20 … +80
MTTFD values according to EN ISO 13849 1)		Years	150 … 1,200

1)	For further details, see data sheet 08012

hydraulic

Size			6
Maximum operating pressure (Input)	Version "B", "P"	bar	350
Maximum operating pressure (Input)	Version "A"	bar	315
Maximum secondary pressure 1)	Outlet	bar	25 75 150 210 315
Maximum counter pressure	Port T (Y)	bar	160
Maximum flow		l/min	50
Hydraulic fluid			see table
Hydraulic fluid temperature range	NBR seals	°C	-30 … +80
Hydraulic fluid temperature range	FKM seal	°C	-20 … +80
Viscosity range		mm²/s	10 … 800
Maximum admissible degree of contamination of the hydraulic fluid 2)			Class 20/18/15 according to ISO 4406 (c)

1)	315 bar only with version “B” and “P”
2)	The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

Hydraulic fluid		Classification	Suitable sealing materials	Standards	Data sheet
Mineral oils		HL, HLP, HLPD	NBR, FKM	DIN 51524	90220
Bio-degradable 1)	Insoluble in water	HETG	NBR, FKM	ISO 15380	90221
	Insoluble in water	HEES	FKM	ISO 15380
	Soluble in water	HEPG	FKM	ISO 15380
Flame-resistant	Water-free	HFDU (glycol base)	FKM	ISO 12922	90222
		HFDU (ester base) 1)	FKM
		HFDR 1)	FKM
	Containing water 1)	HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620)	NBR	ISO 12922	90223
Important information on hydraulic fluids: For more information and data on the use of other hydraulicfluids, please refer to the data sheets above or contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum surface temperature. Flame-resistant - containing water: Maximum pressure differential 210 bar, otherwise, increased cavitation erosion Life cycle as compared to operation with mineral oil HL, HLP 30 … 100%. Maximum hydraulic fluid temperature 60 °C

1)	In connection with the corrosion-protected version “J3”, small amounts of dissolved zinc may get into the hydraulic system.

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

pA-qV characteristic curves

Version "A"

pA-qV characteristic curves

Version "B" and "P"

Δpmin-qV characteristic curves

Version "A"

Δpmin-qV characteristic curves

Version "B" and "P"

Δp-qV characteristic curves

Notices:

The curve development is maintained if the pressure is set lower according to the pressure rating. The characteristic curves apply to the pressure at the valve output pT = 0 bar across the entire flow range.

Version "P...YM"

Version "A...YM"

Version "B…YM"

Version "A...Y"

①	component side
②	plate side

Version "A"

Dimensions in mm


Required surface quality of the valve contact surface

➀	component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep)
➁	plate side – Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)
1	Name plate
2	Adjustment type "1"
3	Adjustment type "2"
4	Adjustment type "3"
5	Adjustment type "7"
6	Space required to remove the key
7	Valve mounting bores
8	Lock nut SW24
9	Hexagon SW10
10	Identical seal rings for ports A, B, P, T (Y)
11	Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6

Valve mounting screw (separate order)

4 hexagon socket head cap screws ISO 4762-M5-10.9

Notices:

Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve. The dimensions are nominal dimensions which are subject to tolerances.

Version "B" and "P"

Dimensions in mm


Required surface quality of the valve contact surface

➀	component side – porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep)
➁	plate side – Porting pattern according to ISO 4401-03-02-0-05 (with or without locating hole); (with locating hole Ø3 x 5 mm deep for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)
1	Name plate
2	Adjustment type "1"
3	Adjustment type "2"
4	Adjustment type "3"
5	Adjustment type "7"
6	Space required to remove the key
7	Valve mounting bores
8	Lock nut SW24
9	Hexagon SW10
10	Identical seal rings for ports A, B, P, T (Y)
11	Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6

Valve mounting screw (separate order)

4 hexagon socket head cap screws ISO 4762-M5-10.9

Notices:

Denomination	Part number
Protective cap	R900135501

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PRESSURE RED.VALVE INTERMEDIATE PLATE ZDR6DA3-4X/150Y/12

Manufacturer: Bosch Rexroth

Material #: R978858768

Model : ZDR6DA3-4X/150Y/12

More are expected on August 22, 2025

This product is eligible for factory repair.

Type ZDR 6 DA1-4X/.YM…

general

hydraulic

(measured with HLP46, ϑOil = 40 ±5 °C)

pA-qV characteristic curves

pA-qV characteristic curves

Δpmin-qV characteristic curves

Δpmin-qV characteristic curves

Δp-qV characteristic curves

Version "P...YM"

Version "A...YM"

Version "B…YM"

Version "A...Y"

Version "A"

Version "B" and "P"

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