8.3.7 M0-32

7/29/2019 8.3.7 M0-32

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IndustrialHydraulics

Electric Drivesand Controls

Linear Motion andAssembly Technologies Pneumatics

ServiceAutomation

MobileHydraulics

Nominal size 16, 22, 32Series 1XMaximum control pressure• pump side

350 bar• actuator side

420 barMaximum flow410 L/min

Features

– 1 to 4 spools in one high pressure mobile control block

– Parallel circuit

In the 4 spool block, the 4th spool may be in tandem circuit ifrequired

– Combination and tandem circuits available on enquiry

– 8 spool variations

– Counterbalance spool for hydrostatic transmissions

– Large fine control range for flow control with progressiveflow characteristic

– Spreading of the fine control range by means of remotepressure control systems

– return springs or detents which are immersed in oil

– High pressure carry-over feature when using C port, i.e.separation of by-pass line from tank line

– Fine tolerance and low clearance control spools, thereforelow internal leakage

– Identical control characteristics from block to block due toclose tolerance manufacture

– Primary pressure relief valve in P supply line

– Integral secondary pressure relief valves and anti-cavitationcheck valves

Type MO-16, 22 and 32

RE 64 354/06.03 1/20Replaces: 02.98

Overview of contents

Description Page

Features 1

Section 2

Function, Symbol and Circuit Features 3

Ordering Code 4, 5

High Pressure Mobile Control blocks

Secondary valve side of theleft 2 spool block showingthe arrangement of the valves

R 7927/9

4 spool block (Size 22) withsecondary valves, hydraulicoperation, threaded ports

2 spool block size 32 withsecondary valves, hydraulicoperation, SAE flanged ports

Technical Data 6

Operating Curves 6 to 9

Unit Dimensions 10 to 16

Notes on the Selection of the Sizeand Type of Secondary Valves 17

Plugs and Cover Plates 17

Primary Pressure Relief Valve 18

Secundary Valves 18, 19

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2/20 Bosch Rexroth AG | Mobile Hydraulics MO-16, 22 and 32 | RE 64 354/06.03

T

P

X–X

C

P

T

X–X

C

P

T

X–X

Section

Port T on the actuator side(only if port C is notnotnotnotnot required).

Spool operatedSpool operatedSpool operatedSpool operatedSpool operatedPPPPP → B; AB; AB; AB; AB; A→ T;T;T;T;T;

By-pass channel is separatedfrom the tank port

Model "C""C""C""C""C"

ThreadedThreadedThreadedThreadedThreadedportportportportport

SAE-SAE-SAE-SAE-SAE-portportportportport

Model "R""R""R""R""R"

With version “K”version “K”version “K”version “K”version “K”, port C is provided, but pluggedwith a screw plug. If port C is required, aseparating plug must be screwed in between theP and the T channel.

Model "K""K""K""K""K"

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RE 64 354/06.03 | MO-16, 22 and 32 Mobile Hydraulics | Bosch Rexroth AG 3/20

B2A2

a2

B1A1

a1

T

b2

b1

P

P

TB4A4

P

TC

B

A

P

Function

Symbol and Circuit Features

In model Cmodel Cmodel Cmodel Cmodel C the tank port is separated from the by-pass channel.

The symbol is for a 2-spool block with hydraulic operation.The spools are always arranged in parallel circuit.

High pressure mobile control blocks Type MO are directionalcontrol valves of monoblock designThey give fine control of the speed and direction of an oil flow.The valves are optionally operated hydraulically, electro-hydraulically or, on enquiry, mechanically.

They basically consist of the housing (1), control spool (2), withbuilt-in check valves (3) (for spool types 001), operatingelement (4), return element (5), built on anti-cavitation valves(6) (optional) and built-on secondary pressure relief valves (7)(optional).The 6/3-way valves combine the function of a 4/3-way valvesand a 2/2-way valve.In the unoperated condition, the control spool (2) is held instarting position by the return spring or detent (12).In this position the connection from pump to services is closed,the 2/2-way section is open and allows fluid to flow withoutpressure from P to T.If control spool (2) is moved out of its starting position, theconnection from the pump to the services is opened viametering notches and at the same time the 2/2-way section isthrottled by means of further similar notches (negative overlap).Pump pressure increases. When the pressure at the serviceport is reached, the check valve (3) in the spool opens andfluid begins to flow to the serviced unit. As the control spool(2) continues its movement, fluid is gradually fed from the 2/2-way line to the service port (fine control).

Spool StrokeSpool StrokeSpool StrokeSpool StrokeSpool StrokeThe spool stroke is divided into approx. 30% control landoverlap and 50% fine control range, while the remaining strokeserves to create the full opening.The overlap and a low spool tolerance serve to reduce internalleakage. Due to the large fine control range, the services can

be sensitively controlled.

Control Characteristics, Operating ForcesControl Characteristics, Operating ForcesControl Characteristics, Operating ForcesControl Characteristics, Operating ForcesControl Characteristics, Operating ForcesUniform quality of the control characteristics and low operatingforces are achieved by optimum design of the meteringnotches and individual grinding of the control spool to closetolerances.

Counterbalance SpoolCounterbalance SpoolCounterbalance SpoolCounterbalance SpoolCounterbalance SpoolThis spool is used for the control of hydrostatic drives ontracked vehicles as a fully automatic motion control device inboth directions of operation. Down-hill travel with cavitation-free operation is achieved by controlling the meter-out openingdependent upon the inlet pressure.

Easily Serviced DesignEasily Serviced DesignEasily Serviced DesignEasily Serviced DesignEasily Serviced Design– Primary pressure relief valves (10) are designed as screw-in

cartridges.– Secondary valves (anti-cavitation and/or pressure relief

valves) are designed as stacking elements.– Primary and secondary pressure relief valves can therefore

be interchanged without dismantling the block.

– Corrosion of the return elements is prevented, as the returnsprings (11) and detents (12) are oil immersed.

– In order to remove the control spool, only one cover need beremoved per spool. In valves with mechanical operation,cover (8) is removed and for hydraulic operation, cover (9) isremoved.

Notes on setting the primary and secondary pressure reliefNotes on setting the primary and secondary pressure reliefNotes on setting the primary and secondary pressure reliefNotes on setting the primary and secondary pressure reliefNotes on setting the primary and secondary pressure reliefvalves.valves.valves.valves.valves.The setting of the stated pressure values is made as follows:– direct operated pressure relief valves at a flow of 2 to

3 L/min.– pilot operated pressure relief valves at a flow of 10 L/min.

The 4th spool of a 4-spool block can be arranged in tandemcircuit if required.In this model, the pump port to the 4th spool is blocked whenthe free by-pass of the previous spools is closed when one ofthese is operated.

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A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

1st spool1st spool1st spool1st spool1st spool

2nd spool2nd spool2nd spool2nd spool2nd spool

4th spool4th spool4th spool4th spool4th spool

3rd spool3rd spool3rd spool3rd spool3rd spool

each )|( - opening in mm2

MO-16 MO-22 MO-32

30 60 120

= 009= 009= 009= 009= 009

= 006= 006= 006= 006= 006

= 026= 026= 026= 026= 026

= 007= 007= 007= 007= 007

= 001= 001= 001= 001= 001

= 002= 002= 002= 002= 002

= 003= 003= 003= 003= 003

= 005= 005= 005= 005= 005

MOMOMOMOMO –––––1X1X1X1X1X A2A2A2A2A2

A2A2A2A2A2

A2A2A2A2A2

A2A2A2A2A2

Control block versions which can be derived fromthe shaded ordering variants are available on theshort term.

Ordering Code

DirectionalvalveportA

DirectionalvalveportB

= applicable

Number of spoolsNumber of spoolsNumber of spoolsNumber of spoolsNumber of spools 1, 2, 3 or 4Size 16 = 16= 16= 16= 16= 16Size 22 = 22= 22= 22= 22= 22Size 32 = 32= 32= 32= 32= 32

Series 10 to19 (10 to 19, externally interchangeable) = 1X= 1X= 1X= 1X= 1X

WithoutWithoutWithoutWithoutWithout primary pressure relief valve = D 000= D 000= D 000= D 000= D 000WithWithWithWithWith primary pressure relief valve, pilot operated = D + press. in bar= D + press. in bar= D + press. in bar= D + press. in bar= D + press. in bar

Parallel circuit = P= P= P= P= PTandem circuit (only with 4-spool block for the 4th spool axis) = B= B= B= B= BTandem circuit (MO16 3-spool block for all spool axes) = T= T= T= T= TCombination circuit available on enquiry

SymbolsSymbolsSymbolsSymbolsSymbols

Spool return:Spool return:Spool return:Spool return:Spool return:

Spool return to neutral position by spring = A2= A2= A2= A2= A2Operation mode:Operation mode:Operation mode:Operation mode:Operation mode:Hydraulic operation, standardstandardstandardstandardstandard = H= H= H= H= HElectro-hydraulic operation (on request!) = W..= W..= W..= W..= W..

Secondary valves:Secondary valves:Secondary valves:Secondary valves:Secondary valves: MO- MO- MO-16 22 32

Pressure relief and anti-cavitation valve, direct operated, size 16 ===== H + press. [bar]H + press. [bar]H + press. [bar]H + press. [bar]H + press. [bar]Pressure relief and anti-cavitation valve, pilot operated, size 32 ===== F + press. [bar]F + press. [bar]F + press. [bar]F + press. [bar]F + press. [bar]

Pressure relief valve, direct operated size 16 ===== A + press. [bar]A + press. [bar]A + press. [bar]A + press. [bar]A + press. [bar]Pressure relief valve, direct operated size 22 ===== R + press. [bar]R + press. [bar]R + press. [bar]R + press. [bar]R + press. [bar]

Cross-line relief valve and anti-cavitation valve (size 16/22 + E; size 32 + S) ===== K + press. [bar] *K + press. [bar] *K + press. [bar] *K + press. [bar] *K + press. [bar] *

Anti-cavitation valve, size 16 ===== EEEEEAnti-cavitation valve, size 22 ===== SSSSS

Pressure relief valve, direct operated, size 16 and anti-cavitation valve, size 16 ===== G + press. [bar]G + press. [bar]G + press. [bar]G + press. [bar]G + press. [bar]Pressure relief valve, direct operated, size 22 and anti-cavitation valve, size 22 ===== T + press. [bar]T + press. [bar]T + press. [bar]T + press. [bar]T + press. [bar]

Cover plate for secondary valve mounting face, size 16 ===== PPPPPCover plate for secondary valve mounting face, size 22 ===== UUUUU

without secondary valves ===== ZZZZZ

Secondary valves of various sizes cannot be used individually on MO-22 and 32, they must be used in pairs per spool. The useof secondary valves Types T, R, S and cover plate U on adjacent spools in size MO-22 is not possible. As an aid to decidingwhich secondary valves should (and can) be used, please see page 17.*See also pages 15 and 16 (items 1 and 2).

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A 2

B 2

A 1

B 1

A2 B2

A1 B1

A B

1) Preferred Type with SAE flanges, 6000 PSI rating except size 32 port T 3000 PSI

*****

see page10, 11, 12

see page10, 11, 12}

}

Further details in clear text

M =M =M =M =M = NBR seals, suitable for use with mineral oils (HL, HLP) to DIN 51 524V =V =V =V =V = FKM seals, suitable for use with phosphate ester (HFD-R)

Designation of mounting position from horizontal. This is necessaryfor hydraulic operation only, and determines the position of the air bleed.

1 =1 =1 =1 =1 = 2 =2 =2 =2 =2 = 3 =3 =3 =3 =3 =

S =S =S =S =S = Tank port T on secondary valve side

V =V =V =V =V = Tank port T on service port side( not possible for models C

S =S =S =S =S = Pump port P on secondary valve sideV =V =V =V =V = Pump port P on service port side

Port P A, B, C T L a, b, X

01 =01 =01 =01 =01 = 3/4" BSP 3/4" BSP 1" BSP 1/4" BSP 1/4" BSP

MO-16 11 =11 =11 =11 =11 = 1/2" SAE 1/2" SAE 3/4" SAE 1/4" BSP 1/4" BSP1)18 =18 =18 =18 =18 = 3/4" SAE 1/2" SAE 3/4" SAE 1/4" BSP 1/4" BSP

01 =01 =01 =01 =01 = 1" BSP 1" BSP 1 1/4" BSP 3/8" BSP 1/4" BSP

MO-22 11 =11 =11 =11 =11 = 3/4" SAE 3/4" SAE 1" SAE 3/8" BSP 1/4" BSP

1)18 =18 =18 =18 =18 = 1" SAE 3/4" SAE 1" SAE 3/8" BSP 1/4" BSP

MO-32 1)11 =11 =11 =11 =11 = 1 1/4" SAE 1 1/4" SAE 1 1/2" SAE 1/2" BSP 1/4" BSP

R =R =R =R =R = with tank port T

C =C =C =C =C = with tank port T and pressure carry over port C for downstreamactuators (not possible for tank port on "V" side)

K =K =K =K =K = with tank port and variable pressure carry over port C fordownstream actuators (pressure port C closed by locking screw)

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1400 12010080604020

2

4

6

8

10

12

12

0 230

10

8

6

4

2

20015010050

12

0 400300200100

10

8

6

4

2

2 0 1

2 0 1

2 0 1

2 0 1

T

P

Technical Data (For operation outside these parameters, please consult us!)

Flow/pressure drop curve

P → T in mid position, free by-pass

Fluid:Fluid:Fluid:Fluid:Fluid: Mineral oil (HL, HLP) to DIN 51 524,hydraulic fluids HEES to VDMA 24 568as well as hydraulic fluids as specifiedin RE 90 221.

Fluid temperature range:Fluid temperature range:Fluid temperature range:Fluid temperature range:Fluid temperature range: – 20 to + 80°C

Viscosity range:Viscosity range:Viscosity range:Viscosity range:Viscosity range: 10 to 380 mm2/s

Degree of contamination of fluid:Degree of contamination of fluid:Degree of contamination of fluid:Degree of contamination of fluid:Degree of contamination of fluid:(maximum permissible ) is to ISO 4406 (C) Class 20/18/15.

Flow rate:Flow rate:Flow rate:Flow rate:Flow rate:

MO - 16 MO - 22 MO - 32110 L/min 200 L/min 410 L/min

Operating Curves (measured at ν = 41 mm2/s and ϑ = 50 °C)

Flow in L/min →

MO - 16

Pressuredifferenceinbar

→

Flow in L/min →

MO - 22


→

Flow in L/min →

MO - 32


→

4 spools

3 spools

2 spools

1spool

4 spools

3 spools

2 spools

1spool

4 spools

3 spools

2 spools

1spool

4 spools

3 spools

2 spools

1spool

Weight in kgWeight in kgWeight in kgWeight in kgWeight in kg: (without secondary valves) MO - 16MO - 16MO - 16MO - 16MO - 16 MO - 22MO - 22MO - 22MO - 22MO - 22 MO - 32MO - 32MO - 32MO - 32MO - 32

Number of spools 1 2 3 4 1 2 3 4 1 2 3 4

hydraulically operated 13,5 20 25,5 31,5 21,5 35 43,5 55 39 64,5 87 115

Operating pressure:Operating pressure:Operating pressure:Operating pressure:Operating pressure: – Ports P, X, C up to 350 bar– Ports A, B up to 420 bar– Port T up to 30 bar– Port L at zero pressure to tank

Pilot pressure:Pilot pressure:Pilot pressure:Pilot pressure:Pilot pressure: – Ports a, b up to 30 bar(Fine control range 8 to 19 bar);Control curve No. 06(for suitable pilot devices, seeRE 64 552, RE 64 555 and RE 64 558)

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0 240

2

4

6

8

10

12

14

40 80 120 160 200

0 240

22

20

16

18

14

12

10

8

6

2

4

2001601208040

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A1/B1 → T

Flow in L/min →

Flow in L/min →

A → B

Operating Curves for Type MO - 16 (measured at ν = 41 mm2/s and ϑ = 50 °C)


→

Pressuredifferencein

bar

→

Symbol 001 (026)001 (026)001 (026)001 (026)001 (026)

Symbol 006 (009)006 (009)006 (009)006 (009)006 (009)

Symbol 005005005005005


P → A, P→ B;

A → T, B → T;

A → B (only Symbol 002002002002002)

Symbol 002002002002002

Symbol 003003003003003


P → A, P→ B;

A → T, B → T;

P → A4/B4

P → A1/B1

A4/B4 → T

A1/B1 → T

A4/B4 → T

P → A4/B4

P → A1/B1

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0 400

34

32

30

26

28

24

22

20

18

16

14

12

10

8

6

4

2

50 100 150 200 250 300 350

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

0 400

24

26

22

28

20

18

16

14

12

10

8

6

4

2

35030025020015010050


Flow in L/min →

Flow in L/min →


→

Symbol 001 (026)001 (026)001 (026)001 (026)001 (026)

Symbol 006 (009)006 (009)006 (009)006 (009)006 (009)

Symbol 005005005005005

Symbol 002002002002002

Symbol 003003003003003

Pressurediffe

renceinbar

→

P → A4/B4

P→

A1/B1

A4/B4 → T

A1/B1 → T

A4/B4 → T

P → A4/B4

P → A1/B1

A1/B1 → T

A → B


P → A, P→ B;

A → T, B → T;

A → B (only Symbol 002002002002002)


P → A, P→ B;

A → T, B → T;

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0 410

34

32

30

26

28

24

22

18

20

16

14

12

10

8

6

2

4

35030025020015010050

0

22

20

18

16

14

12

10

8

6

2

4

650600500400300200100

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1

A B

P T

2 0 1



P → A, P→ B;

A → T, B → T;

Flow in L/min →


→

Symbol 001 (026)001 (026)001 (026)001 (026)001 (026)

Symbol 006 (009)006 (009)006 (009)006 (009)006 (009)

Symbol 005005005005005

Symbol 002002002002002

Symbol 003003003003003


→

A4/B4 → T

P → A1/B1

P → A4/B4

A1/B1 → T

A1/B1 → T

A→

B

P → A1/B1

P → A4/B4

A4/B4 → T

Flow in L/min →


P → A, P→ B;

A → T, B → T;

A → B (only Symbol 002002002002002)

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4 0

7 3

9 0

7 3

5

13 13

a b

85

100

322

52,5

45 96 6

1 4

L 1

6

6

a2

a1

b2

b1

4 1

44,5

52,5

95

19030

Ø 9,5 16 68

3 9

9 4

5 5

L 2

L 3

A B

T

P

2

1

11111.1.1.1.1.1 Hydraulic operation spool HHHHH

22222.1.1.1.1.1 Bleed screw,The position of this screwis dependent on theorientation of the valve

block with regardto the horizontal.Tightening torque = 8 Nm

33333.1.1.1.1.1 Pressure port C fordownstream actuators.In this model, the tank portis on the actuator side

44444.1.1.1.1.1 Tank port T on secondaryvalve side

55555.1.1.1.1.1 Tank port T on service port side(not possible in models C)

66666.1.1.1.1.1 Mounting face for secondary

valves (also see pages 13 to19)

77777.1.1.1.1.1 Clearance required to removeprimary pressure relief valve

88888.1.1.1.1.1 Pump port P on secondaryvalve side

99999.1.1.1.1.1 Pump port P on service portside

Unit Dimensions: Type MO - 16 (in mm)

6 13

2

4 5

L1 L2 L3

1 130 137 168

2 185 192 223

3 240 247 278

4 295 302 333

No. ofspools

SAE flanges, 6000 PSI rating

port P A, B, C T L a, b, X

0101010101 3/4" BSP 3/4" BSP 1" BSP 1/4" BSP 1/4" BSP

1111111111 1/2" SAE 1/2" SAE 3/4" SAE 1/4" BSP 1/4" BSP

1818181818 3/4" SAE 1/2" SAE 3/4" SAE 1/4" BSP 1/4" BSP

8 9 7

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5 0

8 9

1 0

8

8 9

15 15

a b

100

128

394

63

49 125 6

1 6

L 1

a2

a1

b2

b1

5 1

59,5

63

113

22637

Ø 11,5

1 1 6

6 5

L 2

L 3

A B

T

P

2

1

1

68


22222.1.1.1.1.1 Bleed screw,The position of this screwis dependent on theorientation of the valve

block with regardto the horizontal.Tightening torque = 8 Nm



55555.1.1.1.1.1 Tank port T on service portside (not possible in modelsC)

66666.1.1.1.1.1 Mounting face for secondaryvalves (also see pages 13 to19)

77777.1.1.1.1.1 Clearance required to removeprimary pressure relief valve

88888.1.1.1.1.1 Pump port P on secondaryvalve side

99999.1.1.1.1.1 Pump port P on service portside

88888

66666 33333 11111

22222

44444 55555


99999 77777L1 L2 L3

1 163 166 202

2 228 231 267

3 293 296 332

4 358 361 397

No. ofspools

SAE flanges, 6000 PSI rating


0101010101 1" BSP 1" BSP 1 1/4" BSP 3/8" BSP 1/4" BSP

1111111111 3/4" SAE 3/4" SAE 1" SAE 3/8" BSP 1/4" BSP

1818181818 1" SAE 3/4" SAE 1" SAE 3/8" BSP 1/4" BSP

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5 8

1 0 5 1

3 0

1 0 5

20 20

a b

130

164

488

85

68 138 6

2

0

L 1

a2

a1

b2

b1

5 7

76

85

150

30044

Ø 13,5

1 3 7

8 5

L 2

L 3

A BT

P

2

1

10

78


88888 99999 77777

66666 33333 11111

22222

44444 55555


22222.1.1.1.1.1 Bleed screw,The position ofthis screw isdependent on

the orientationof the valve block with regard to thehorizontal.Tightening torque= 8 Nm



55555.1.1.1.1.1 Tank port T on service

port side (not possiblein models C)

66666.1.1.1.1.1 Mounting face forsecondary valves(also see pages 13 to 19)

77777.1.1.1.1.1 Clearance requiredto remove primarypressure relief valve

88888.1.1.1.1.1 Pump port P onsecondary valve side

99999.1.1.1.1.1 Pump port P onservice port side

L1 L2 L3

1 200 207 250

2 285 292 335

3 370 377 420

4 455 462 505

No. ofspools

SAE-flanges 6000 psi; port T: 3000 psi


1111111111 1 1/4" SAE 1 1/4" SAE 1 1/2" SAE 1/2" BSP 1/4" BSP

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114

L1

101,5

L2

L4

3 8

3 8

6 8

A

E

GH

69 L5 L6 50

4 2

6

1 2

6

E P

4 8

4 7

4 9

T

A, G

P

H

Unit Dimensions: Secondary valves, sizes 16 and 22 (in mm)

22222 11111

Item 1

With a 1" SAE - T port, thelast spool immediatelyadjacent may be equippedwith all secondary valves

except K, T, R, S, and coverplate U.

Item 2

With a 1" BSP - T port, thelast spool immediatelyadjacent may be equippedwith all secondary valves

except K.

Item 2

With a 1 1/4" BSP - T port, thelast spool immediately adja-cent may be equipped with allsecondary valves except K,

T and R.

Item 1

With a 3/4" SAE - T port,the last spool immediatelyadjacent, may only beequipped with the

secondary valves H, E, Kand cover plate P.

Type MO - 16Type MO - 16Type MO - 16Type MO - 16Type MO - 16 Type MO - 22Type MO - 22Type MO - 22Type MO - 22Type MO - 22

Type L1 L2 L3 L4 L5 L6

MO - 16 136 137,5 41 42,5 21 38

MO - 22 150 151,5 37 38,5 35 52

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Type MO - 22Type MO - 22Type MO - 22Type MO - 22Type MO - 22

Type L1 L2 L3

MO - 22 170 31 47

MO - 32 188 49 65

Item 3

With a 1"SAE - P port, the 1stspool immediately adjacentmay be equipped with allsecondary valves except R.

Secondary valves of varying sizes cannot be used together onone spool axis, they may only be used in pairs of the samesize.Secondary valves T, R, S and cover plate U may not be fitted

on spools immediately adjacent to one another.

Unit Dimensions: Secondary valves, size 22 (in mm)

33333

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Unit Dimensions: Secondary valves, sizes 16 and 22, for types MO-16 and MO-22 (in mm)

2 1


11111 With a 3/4" SAE - T port, the last spool immediatelyadjacent, may only be equipped with secondary valves H,E, K and cover plate P.

22222 With a 1"BSP - T port, the last spool immediately adjacent

may be equipped with all secondary valves except K.

Type L1 L2 L3

MO-16 234 90 42

MO-22 262 104 70


11111 With a 1" SAE - T port, the last spool immediatelyadjacent, may be equipped with all secondary valvesexcept K, T, R, S, and cover plate U.

22222 With a 1 1/4"BSP - T port, the last spool immediately

adjacent, may be equipped with all secondary valvesexcept K, T and R.

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115

179

F

115

179

F

7 8

F F 7 8

11111 With a 1 1/2"SAE - T port,the last spoolimmediately adjacent

may be equipped with all secondaryvalves except D.

Unit Dimensions: Secondary valves, sizes 22 and 32 for type MO-32 (in mm)

11111

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B1A1

a1

T

b1

P

B1

A1

a1

T

b1

P

for ValveMaterial No.

Tightening torquecontrol block Code in Nm

MO - 16 R900309111 50

MO - 22 KKKKK R900309112 80

MO - 32 R900309125 160

Tank port T and pre-selectable pressure portC for downstreamactuators

KKKKK

Plug for the Pre-selectable Pressure Port

Plug Type "D 000" for Primary Valve Cavities

Cover Plates "P" and "U" for Secondary Valve Mounting Faces, Sizes 16 and 22

for Valve Material Tight. torquecontrol block Code No. in Nm

MO - 16 und 22 D 000D 000D 000D 000D 000 R900309110 80

MO - 32 R900309124 300

for Valve Material No.control block Code

MO - 16 und 22 PPPPP R900305435

MO - 22 und 32 UUUUU R900303897

Secondary valvesSecondary valvesSecondary valvesSecondary valvesSecondary valvesThese valves, either direct or pilot operated, are used to protectthe actuators and actuator lines from unaccepably high pres-sures.

Pressure relief valvesPressure relief valvesPressure relief valvesPressure relief valvesPressure relief valvesDirect operated, size 16

– The response pressure must lie above the maximum pumppressure

– For the reaction forces of small masses = low flows

– Leak-tight until the response pressure is reached

– Setting is carried out at q V

= 2 L/min

Direct operated, size 22


– For the reaction forces of large masses = large flows

– Leak-tight until the response pressure is reached– Setting is carried out at q

V= 2 L/min

Pressure anti-cavitation valvesPressure anti-cavitation valvesPressure anti-cavitation valvesPressure anti-cavitation valvesPressure anti-cavitation valvesPilot operated, size 16, 22


– For repeated operation

– Setting is carried out at q V

= 10 L/min

Notes on the Selection of the Size and Type of Secondary Valves

Warning:Warning:Warning:Warning:Warning: When changing valve cartridges and plugs, please note the correct tightening toque.

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A (B) T

A,B

T

T B A T

A,B

T

P

T

Valve For Valve Max. set MaterialDesignationsize control block Code press. in bar No.

16 MO - 16 K + press.K + press.K + press.K + press.K + press. R900308512 MH2DBV16P2-1X/420 YM

22 MO - 22 in barin barin barin barin bar 420 R900308383 MH2DBV22P2-1X/420 YM

16 MO - 16 and 22 E *)E *)E *)E *)E *) – R900307120 MHSV16ZB1-1X/ M

K + press.K + press.K + press.K + press.K + press.32 MO - 32 420 R900434971 MH2DBV32P2-1X/420 YM

in barin barin barin barin bar

22 MO - 32 S *)S *)S *)S *)S *) – R900307121 MHSV22ZB1-1X/ M

*) Orderings code not required

Pressure relief valve,Pressure relief valve,Pressure relief valve,Pressure relief valve,Pressure relief valve,direct operateddirect operateddirect operateddirect operateddirect operated

The response pressure is set atQ = 2 L/min

Secondary Valves (for further technical data, see data sheet RE 64 644)

Anti-cavitation valveAnti-cavitation valveAnti-cavitation valveAnti-cavitation valveAnti-cavitation valve

Primary Pressure Relief Valve

Max. set Tight.Valve For Valve Material

pressure torque Designationsize control block Codein bar Nm

No.

22 MO - 16; 22 D + press.D + press.D + press.D + press.D + press. 80 R900304674 MHDBV22K2-1X/420 YM350

40 MO - 32 in barin barin barin barin bar 300 R900307942 MHDBV40K2-1X/420 YM

For further technical data, see data sheet RE 64 642

Cross-line pressure relief valveCross-line pressure relief valveCross-line pressure relief valveCross-line pressure relief valveCross-line pressure relief valveand anti-cavitation valveand anti-cavitation valveand anti-cavitation valveand anti-cavitation valveand anti-cavitation valve(E or S)(E or S)(E or S)(E or S)(E or S)

Pressure relief valvePressure relief valvePressure relief valvePressure relief valvePressure relief valvePilot operatedPilot operatedPilot operatedPilot operatedPilot operated

Valve For Valve Max. set MaterialDesignationsize control block Code press. in bar No.

MO - 16 200 R900305835 MHDBD16P2-1X/200 MA + press.A + press.A + press.A + press.A + press.

16 MO - 22 195 to 300 R900303895 MHDBD16P2-1X/315 Min barin barin barin barin bar

MO - 32 295 to 420 R900302906 MHDBD16P2-1X/420 M

200 R900305836 MHDBD22P2-1X/200 MMO - 22 R + press.R + press.R + press.R + press.R + press.

22 195 to 300 R900305837 MHDBD22P2-1X/315 MMO - 32 in barin barin barin barin bar 295 to 420 R900303354 MHDBD22P2-1X/420 M

Valve For Valve MaterialDesignationsize control block Code No.

MO - 16 EEEEE R900307120 MHSV16ZB1-1X/M

16 MO - 22 Cover plate P forsecondary valve R900305435 –mounting face

SSSSS R900307121 MHSV22ZB1-1X/MMO - 22

22 Cover plate U for

MO - 32secondary valve R900303897 –mounting face

Valve For Valve Max. set MaterialDesignation

size control block Code press. in bar No.

MO - 16; H + press.16 R900936574 MH1DBN16P2-2X/420VFB

MO - 22 in bar420

MO - 22 F + press.32 R900937256 MH1DBN32P2-2X/420VFK

MO - 32 in bar

Pressure anti-cavitation valve,Pressure anti-cavitation valve,Pressure anti-cavitation valve,Pressure anti-cavitation valve,Pressure anti-cavitation valve,pilot operatedpilot operatedpilot operatedpilot operatedpilot operated

The response pressure is set atQ = 10 L/min

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Secondary valves:Secondary valves:Secondary valves:Secondary valves:Secondary valves:weights and fixing screwsweights and fixing screwsweights and fixing screwsweights and fixing screwsweights and fixing screws

Sealing rings for secondary valvesare included in the supply.Fixing screws must be ordered

separately.

Secondary Valves (for further technical data, see data sheet RE 64 644)

Secondary For Weight S.H.Cap screws Tight. Materialtorque

valves control block in kg DIN 912 - 10.9 No.Nm

A MO - 16/22 1,1 4 x M6 x 40 13 R900003196

E MO - 16/22 0,6 4 x M6 x 50 13 R900006034

G MO - 16/22 1,6 4 x M6 x 70 13 R900003201

H MO - 16/22 1,8 4 x M6 x 40 13 R900003196

KMO - 16/22 4,5 8 x M6 x 90 13 R900003203

MO - 32 14,5 8 x M10 x 120 60 R900009409

P MO - 16/22 0,3 4 x M6 x 20 13 R900003192

R MO - 22/32 3,3 / 3,1 4 x M10 x 50 60 R900003231

S MO - 22/32 1,5 4 x M10 x 60 60 R900003233

T MO - 22/32 4,7 4 x M10 x 90 60 R900003236

F MO - 22/32 2,6 4 x M10 x 60 60 R900003233

U MO - 22/32 0,9 4 x M10 x 20 60 R900003226

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© 2003 by Bosch Rexroth AG, Mobile Hydraulics, D-97813 Lohr am Main

All rights reserved. No part of this document may be reproduced or stored,

processed, duplicated or circulated using electronic systems, in any form or by

any means, without the prior written authorisation of Bosch Rexroth AG.

In the event of contravention of the above provisions, the contravening party is

obliged to pay compensation.The data specified above only serves to describe the product. No statements

concerning a certain condition or suitability for a certain application can bederived from our information.The details stated do not release you from theresponsibility for carrying out your own assessment and verification. It must beremembered that our products are subject to a natural process of wear andageing.

Bosch Rexroth AGMobile HydraulicsZum Eisengießer 197816 Lohr am Main, GermanyTelefon +49 (0) 93 52-18 0Telefax +49 (0) 93 52-18 23 [email protected]

Notes

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8.3.7 M0-32