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BOSCH REXROTH
Z2S10-1-3X/
R900407394
Check Valves

Check valves: Z2S 10.-3x/

$492.00

BOSCH REXROTH

MATERIAL:  R900407394

SUMMARY:  Check valves: Z2S 10.-3x/

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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-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Type Z2S 10 A…

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Type Z2S 10 A…SO40

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Type Z2S 10 A…SO60

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

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

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Type Z2S 10 ‒…SO14

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Circuit example, schematic

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

1

Control spool, area A2

2

Ball, area A3

4

Poppet, area A1

5

Stop

6

Control spool, area A4

component side

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

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

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

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

HEES

FKM

Soluble in water

HEPG

FKM

ISO 15380

Flame-resistant

Water-free

HFDU, HFDR

FKM

ISO 12922

90222

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

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

component side

plate side

Version "A"

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

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

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Version "B"

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Version "A…SO40"

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Version "A…SO60"

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Version “-...SO150”

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Version "A3...QMA"

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Version "B3...QMB"

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

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:

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

PNP transistor outputs, load between switching outputs and GND

Pinout:

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

1

+24 V

2

Switching output: 400 mA

3

0 V, GND

4

Switching output: 400 mA

Switching logics

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Dimensions in mm

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/
technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Required surface quality of the valve contact surface

Type

L1

L2

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

component side

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.

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1

4P Z24

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1

4P Z24

For sensors and valves with connector “K24”, “K35” and “K72” Mating connectors M12, 4-pole, line cross-section 0.75 mm2

Data sheet

Spare parts & repair

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1, with assembled connection line

4P Z24 +

technical illustration-Z2S10-1-3X/-Check valves: Z2S 10.-3x/

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1, with assembled connection line

4P Z24 +

For sensors and valves with connector “K24”, “K35” and “K72” Mating connectors M12, 4-pole, line cross-section 0.75 mm2

Data sheet

Spare parts & repair