BOSCH REXROTH
R900962565

BOSCH REXROTH
Material:R900962565
Model:Z2S10B2-3X/VSO30

Due to extremely high demand, please call 877-366-7226 for availability

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth Z2S10B2-3X/VXY (R900962565) is a high-quality isolator valve designed for the leakage-free blocking of one or two actuator ports, even during extended periods of inactivity. This sandwich plate valve allows for free flow from A to A or B to B, while the opposite direction is securely blocked. The valve features a control spool that, when activated by flow in one direction, opens a ball seat valve and dislodges a poppet to enable fluid flow in the reverse direction. It includes a preopening feature to ensure damped decompression and minimize potential switching shocks. The Z2S10B2-3X/VXY is engineered with various cracking pressures and offers the option of preopening as standard; models without preopening are also available. This flexibility ensures secure unloading even at low pilot pressures due to its two-stage setup with an increased control open ratio. The product also comes with check valve installation sets that can be ordered separately. Designed according to ISO standards, this model's porting pattern adheres to both ISO 4401 and ISO 6264 specifications, making it suitable for vertical stacking applications. It boasts an impressive maximum operating pressure and flow rate, ensuring it can handle demanding hydraulic systems efficiently. Additionally, users should note that valves lacking the preopening feature may suddenly unload built-up pressure, potentially causing premature wear on components and generating noise. In terms of designations within this data sheet, port T is referred to as TA and TB instead of the standard ISO naming convention. Overall, the Bosch Rexroth Z2S10B2-3X/VXY (R900962565) offers reliable performance in controlling hydraulic flow within complex systems while providing protection against potential operational hazards such as pressure spikes and switching shocks. Its corrosion-protected design further ensures longevity and resilience in harsh environments.

The isolator valve type Z2S is a releasable check valve in sandwich plate design.

It is used for the leakage-free blocking of one or two actuator ports, also in case of longer standstill times.

In direction A① to A② or B① to B②, there is a free flow; in the opposite direction, the flow is blocked.

If, for example, there is a flow through the valve in direction A① to A②, the control spool (1) is moved in the direction of the B side, opens the ball seat valve (2) and then pushes the poppet (3) off its seat. Hydraulic fluid can now flow from B➁ to B➀.

In order to allow the ball seat valve (2) to be safely closed, the control spool (1) must be hydraulically unloaded (see circuit example).

Pre-opening

Due to the pre-opening, there is a damped decompression of the pressurized liquid. Thus, possible switching shocks are avoided. The two-stage set-up with an increased control open ratio means even low pilot pressure can be unloaded securely.

Type Z2S 10 ‒… (with pre-opening)

technical illustration-R900962565-Sandwich plate valve for use in vertical stackings Porting pattern according to ISO 4401-05-04-0-05 and ISO 4401-05-05-0-05 For the leakage-free blocking of one or two actuator ports, optional Various cracking pressures With pre-opening (standard); without pre-opening (optional) Check valve installation sets available individually Corrosion-protected design

Type Z2S 10 A…

Type Z2S 10 A…SO40

Type Z2S 10 A…SO60

Type Z2S 10 ‒…SO41 (without pre-opening)

Type Z2S 10 ‒…SO14

Circuit example, schematic

1	Control spool, area A2
2	Ball, area A3
4	Poppet, area A1
5	Stop
6	Control spool, area A4

①	component side
②	plate side

Notice:

In valves without pre-opening, sudden unloading of pent-up pressure volume may occur. Resulting switching shocks may lead to premature wear on installed components, as well as noise formation.

Notice:

Deviating from ISO 4401, port T is in this data sheet called TA, port T1 is called TB.

01	02	03	04		05		06	07	08	09	10	11
Z2S	10			–	3X	/						*

01	Check valve, Sandwich plate design	Z2S
02	Size 10	10
Leakage-free blocking
03	In channel A and B	–
	In channel A	A
	In channel B	B
Cracking pressure
04	1,5 bar	1
	3 bar	2
	6 bar	3
	10 bar	4
05	Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions)	3X
Corrosion resistance (outside; thick film passivation according to DIN 50979 – Fe//Zn8//Cn//T0)
06	None (valve housing primed)	no code
06	Improved corrosion protection (240 h salt spray test according to EN ISO 9227)	J3
Seal material
07	NBR seals	no code
	FKM seals	V
	Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)
Additional pilot oil ports X and Y 1)
08	Without X and Y	no code
08	With X and Y	XY
Spool position monitoring 2)
09	Without position switch	no code
	- Inductive position switch type QM (Version "3" only)
	Monitored spool position "a"	QMA
	Monitored spool position "b"	QMB
Special version
10	Without	no code
	Check valve with stroke limitation	SO14
	Control open by external port G1/4 (only version "A" and "B")	SO40
	Without pre-opening	SO41
	Control spool unloaded to port T	SO60
	With pre-opening and control open from channel P	SO150
	Symbols (examples) see "Symbols/Circuit diagrams"
11	Further details in the plain text	*

1)	With version "SO150", ports X and Y are already in place. (No ordering code required)
2)	Only with version "3" (cracking pressure 6 bar) and on side with leakage-free blocking. E.g. Z2S 10 A3-3X/QMA

For applications outside these parameters, please consult us!

general

Size			10
Weight		kg	3
Installation position			any
Ambient temperature range	NBR seals	°C	-30 … +80
Ambient temperature range	FKM seals	°C	-20 … +80

hydraulic

Size			10
Maximum operating pressure		bar	315
Cracking pressure (in free direction)			See characteristic curves
Maximum flow		l/min	120
Direction of flow			see symbols
Hydraulic fluid			see table "Hydraulic fluid"
Hydraulic fluid temperature range (at the valve working ports)	NBR seals	°C	-30 … +80
	FKM seals	°C	-20 … +80
Viscosity range		mm²/s	2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1)			Class 20/18/15
Area ratio	Without pre-opening		A1/A2 ~ 1/3 (see sectional drawing)
	With pre-opening		A3/A2 ~ 1/11,5 (see sectional drawing)
	Version "SO60"		A1/A4 ~ 1/6 (see sectional drawing)

1)	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, HVLP, HVLPD	NBR, FKM	DIN 51524	90220
Bio-degradable	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, HFDR	FKM	ISO 12922	90222
Flame-resistant	Containing water	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 per control edge 50 bar Pressure pre-loading at the tank port > 20 % of the pressure differential, otherwise increased cavitation Life cycle as compared to operation with mineral oil HL, HLP 50 … 100%.

Notice:

Selection of optimal sealing material (see "Type code") also depends on the type of hydraulic fluid used.

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

Δp-qV characteristic curves

①	component side
②	plate side

Version "A"

Version “-”, “-...SO41” and “-...SO14”

Version "B"

Version "A…SO40"

Version "A…SO60"

Version “-...SO150”

Version "A3...QMA"

Version "B3...QMB"

Notice:

Deviating from ISO 4401, port T is in this data sheet called TA, port T1 is called TB.

Inductive position switch type QM

The electrical connection is realized via a 4-pole mating connector (separate order, see "Accessories") with connection thread M12 x 1.

Connection voltage:	24 V +30 %/-15 %, direct voltage
Admissible residual ripple:	≤ 10 %
Load capacity:	maximum 400 mA
Switching outputs:	PNP transistor outputs, load between switching outputs and GND
Pinout:	1	+24 V
	2	Switching output: 400 mA
	3	0 V, GND
	4	Switching output: 400 mA

Switching logics

Dimensions in mm


Required surface quality of the valve contact surface

Type	L1	L2
Type	mm	mm
Z2S 10 ...ohne Bez.	13.5	13.5
Z2S 10 ...SO14	13.5	38.5
Z2S 10 A...SO40	6.5	13.5
Z2S 10 B...SO40	13.5	6.5
Z2S 10 ...SO41	13.5	13.5
Z2S 10 ...SO60	13.5	13.5
Z2S 10 ...SO150	13.5	13.5

①	component side
②	plate side

1	Name plate
2	Through hole for valve mounting
3	Identical seal rings for ports A, B, P, TA and TB
4	Plug screw SW30, tightening torque MA = 40+5 Nm
5.1	Version with position switch “QMA” (for circuitry refer to "Electrical connection")
5.2	Version with position switch “QMB” (for circuitry refer to "Electrical connection")
6	Porting pattern according to ISO 4401-05-04-0-05, ISO 4401-05-05-0-05; deviating from ISO 4401, port T is referred to with TA and port T1 is referred to with TB in this data sheet.

Valve mounting screws (separate order)

Size	Quantity	Hexagon socket head cap screws	Material number
10	4	ISO 4762 - M6 10.9	-

Notice:

Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve.

Spare parts & repair