ZDR6DP1-4X/75YM

• 叠加板式阀。

• 油口布置符合ISO 4401-05-04-0-05。

• 四种压力等级。

• 四种可选调节方式。

• 旋钮。

• 带六角及保护帽的调节套。

• 带刻度的可锁定旋钮。

• 带刻度旋钮。

• 可选单向阀，适用于“A”型。

• 在A、B或P通道中减压。

• 防腐蚀结构。

ZDR型阀是叠加板式直动减压阀，带压力功能。

二次回路的压力限制，用于降低系统压力。

减压阀主要包括阀体（1）、控制阀芯（2）及压缩弹簧（3）。

调节装置（4）及可选单向阀。

通过调节装置（4）设定二次压力。

“A”版本。

阀在初始位置开启，液压油可由A➀流向A➀。

无阻流动。同时，A➀通道压力经控制管路（5）作用于。

压缩弹簧（3）对侧的活塞面积。如果A➀通道压力超过设定值。

达到压缩弹簧（3）的设定值时，控制阀芯（2）被推动，克服压缩弹簧（3）移向。

控制位置，使A➀通道压力保持在设定值。

控制信号和先导油通过控制油路（5）从通道 A➁ 内部引入。

若执行器受到外力，导致通道 A➀ 中的压力继续升高，则……

进一步推动控制阀芯（2）克服压缩弹簧（3）。

由此，通道 A➀ 经控制阀芯（2）上的控制边（9）与油箱连通，并……

阀体（1）。足量的液压油排向油箱，使压力不再。

继续升高。

弹簧腔（7）的泄漏油始终经孔（6）向外排出。

T（Y）通道。

压力表接口（8）可用于检查阀的二次压力。

对于“A”型，可通过单向阀实现自由回流。

“P”及“B”版本。

对于“P”型，在通道 P➀ 中减压。控制信号和先导油……

由P➀通道内部供给。

对于“B”型，在通道 P➀ 中减压，但先导油取自通道……

B。

注意：

若换向阀处于 P 至 A 的阀位，通道 B 的压力不得超过设定的……

二次压力。否则，A通道发生减压。

①

元件侧。

②

板侧。

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).

一般

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 … 1200

1)	For further details, see data sheet 08012

液压

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.

(如需在这些数值以外的工况下使用，请咨询我们！)

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"