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DIRECTIONAL CONTROL VALVES

MH1 LEVER OPERATED

HT1V LEVER OPERATED IP66 protection class

MR1 ROLLER CAM OPERATED

MA1 PNEUMATICALLY OPERATED

MC1 HYDRAULICALLY OPERATED

CETOP 03

p max (see technical specifications table)

Q max (see technical specifications table)

OPERATING PRINCIPLE

These directional control valves are designed for

subplate mounting interface in compliance with

CETOP 4.2-4-03 and ISO 4401-03 standards.

MH1 and HT1V

— MH1 and HT1V are four-way, lever operated,

directional control valves. They are available with two

or three positions and a return spring or mechanical

detent.

— HT1V type is completely sealed from the external

environment with protection class IP 66.

— They are available with several hydraulic configurations

and with interchangeable spools (see par. 4.1).

— The lever can be positioned at 90° with respect to the

standard position, depending on the installation needs.

MR1

— MR1 are directional control valves, roller cam operated,

four-way, 2 position with return spring.

— The roller of the valve operating device can be

positioned at 90° with respect to the valve mounting

surface, in order to achieve flexible installation.

— This type of valve can be used as a hydraulic stroke end

for cylinders, speed selectors (not compensated),

hydraulic safety devices, directional control of hydraulic

axes (see application examples par. 8).

MA1 and MC1

— MA1 and MC1 are directional control valves with

pneumatic or hydraulic control respectively.

— They are available with 2 or 3 positions with return

spring or mechanical detent.

— All versions are provided with an emergency manual

override.

— These valves are available with several hydraulic

configurations and with interchangeable spools (see

par. 4.3).

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MH1

MR1

MC1

1 - IDENTIFICATION CODE

PERFORMANCE RATINGS

(working with mineral oil of viscosity of 36 cSt at 50°C)

Subplate mounting

Number of ways

4 = four-way (standard)

23 = three-way (only for MA1 and MC1)

Configuration:

see par. 4 for symbols and for the configurations

available for each valve)

Seals:

N = NBR seals for mineral oil (standard)

V = FPM seals for special fluids

Series No:

22 for MH1

30 for HT1V

21 for MR1

20 for MA1

20 for MC1

(the overall and mounting dimensions remain

unchanged with the same decimal range - i.e. 20 - 29)

Directional control valve CETOP 03

MH1 lever operated

HT1V lever operated IP 66 protection class

MR1 mechanically operated

MA1 pneumatically operated

MC1 hydraulically operated

P 4 - /

MH1-HT1V MR1 MA1 MC1

Maximum working pressure

- P A B ports bar 350

- T port 140

Piloting min

bar - -

1,5 5

pressure (MA1-MC1) max 10 140

Maximum flow: - from P port to A-B-T l/min 40

Ambient temperature range °C -20 ÷ +50

Fluid temperature range °C -20 ÷ +70

Fluid viscosity range cSt 2.8 ÷ 380

Recommended viscosity cSt 25

Fluid contamination degree according to NAS 1638 class 10

Mass kg 1,4 1,1

1,5 MA1-T

1,5 MC1-T

2,0 MA1-S 2,0 MC1-S

3 - HYDRAULIC FLUIDS

Use mineral oil-based hydraulic fluids HL or HLP type, according to ISO 6743/3.

For fluids HFD-R type (phosphate esters) use FPM seals (code V).

For the use of other fluid types as HFA, HFB, HFC, please consult our technical department.

Using fluids at temperatures higher than 70°C causes a faster degradation of the fluid and of the seals characteristics.

The fluid must be preserved in its physical and chemical characteristics.

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4 - CONFIGURATIONS

4.1 - Configurations available for MH1 and HT1V

4.2 - Configurations available for MR1

Type S:

3 positions

with spring centering

Type TA:

2 external positions

with return spring

Type TAK:

2 external positions

with mechanical detent

Type TA*:

2 positions (external + central)

with return spring

Type *TA:

2 positions

(central + external)

with spring centering

Type *TAK:

2 positions

(central + external)

with mechanical detent

Type TA:

2 external positions

with return spring

Type SK:

3 positions

with mechanical detent

Type R:

2 positions

with double mechanical command

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4.3 - Configurations available for MA1 and MC1

Type S:

2 commands- 3 positions

with spring centering

Type R:

2 commands - 2 positions

without springs

Type TA:

1 command side A

2 external positions

with return spring

Type TC:

1 command side B

2 external positions

with return spring

Type *TA:

1 command side A

2 positions (central + external)

with spring centering

Type *TC:

1 command side B

2 positions (central + external)

with spring centering

Type RK:

with mechanical detent

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5 - OVERALL AND MOUNTING DIMENSIONS MH1 AND HT1V

MOUNTING SURFACE

CETOP 4.2-4-03-350

ISO/CD 4401-03

1 Mounting surface with sealing rings

4 OR type 108

2 Valve hand lever MH1 (see note)

3 Hand lever boot protected

IP 66 protection class (see note)

dimensions in mm

NOTE: The valve is supplied as standard with the hand lever oriented

in a perpendicular position with respect to the mounting surface (as

indicated in the above drawing). For installation needs the hand lever

can be oriented by the user directly at 90° to the standard position:

- remove the 4 M5x16 countersunk hexagonal screws (ref. a)

- rotate through 90°, to the desired direction, the hand lever and the

relevant support and tight the fixing screws.

MH1

HT1V

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6 - OVERALL AND MOUNTING DIMENSIONS MR1

MR1-TA

MR1-R

Mounting surface with sealing rings

4 OR type 108

2 Roller for valve operation

(see note)

3 Countersunk hexagonal screw for roller

orientation: spanner 2

dimensions in mm

MOUNTING INTERFACE

CETOP 4.2-4-03-350

ISO/CD 4401-03

NOTE: The valve is supplied as standard with the

operating roller oriented in a perpendicular

position with respect to the mounting surface. For

installation needs the roller can be oriented by the

user directly at 90° to the standard position:

- untight the locking nut and the countersunk

hexagonal screw (ref. 3) until the spool and the

relevant roller can be freely oriented.

- rotate through 90° the spool with the roller

- tighten the fixing screw (ref. 3) being careful that

it goes inside the spool anti-rotation slot without

preventing the spool movement.

Cam

Max. stroke 3.8

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7 - OVERALL AND MOUNTING DIMENSIONS MA1 E MC1

MOUNTING SURFACE

CETOP 4.2-4-03-350

ISO/CD 4401-03

TC version

command position

MA1-S MC1-S

MA1-R MC1-R

MA1-RK MC1-RK

MA1-TA

MC1-TA

Mounting surface with sealing rings

4 OR type 108

2 1/4” BSP connection for pneumatic (MA1)

or hydraulic (MC1) operation.

Manual override

dimensions in mm

8 - MR1 VALVE APPLICATION EXAMPLES

REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS.

DUPLOMATIC OLEODINAMICA SpA

20025 LEGNANO (MI) - P.le Bozzi, 1 / Via Edison

Tel. 0331/472111-472236 - Fax 0331/548328

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Type PMMD-AI3G with rear ports

Type PMMD-AL3G with side ports

P, T, A, B ports threading: 3/8” BSP

9 - SUBPLATES (see catalogue 51 000)

Example of automatic stroke inversion by means of MR1P4-TA.

Operated by the cams located on the cylinders

➄ and ➅, the MR1P4-TA valves ➀ and ➁ pilot alternatively the directional control valve ➃

which controls the cylinder ➆ movement.

In this way the stroke inversion of cylinder

➆ is syncronized with the alternate movement of cylinders ➄ and ➅ operated by the solenoid

valve

➂.