Controlli MVH26 Mounting Instructions

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Valve Actuators

Hot media hazard. Before removing actuator from valve or opening the valve, ensure that the valve control medium is

isolated and remove the pressure. Work must only be carried out by a competent engineer.

Attention: do not use the actuator disassembled from the valve.

MVH26/36/46/56 models

Assemble the actuator to the valve by U-bolt and the

two nuts with the washer without locking the nuts.

1st Issue rev. e

ISO 9001

MOUNTING INSTRUCTIONS

01/12

CONTROLLI

16010 SANT'OLCESE Genova - Italy

Tel.: +39 01073061

E-mail: info@controlli.eu

Lock the stem extension c on the rack placing the

indicator disk a and the jagged washer b.

By rotating the manual control knob,

lower the stem extension until it

reaches the valve stem, then rotate

the actuator to screw the stem into

the extension.

Tighten the locknut on the stem and

lock the two nuts on the U-bolt.

Fax: +39 0107306870/871

Web: www.controlli.eu

MVH

DIM156e

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Page 1 Work must only be carried out by a competent engineer. Attention: do not use the actuator disassembled from the valve. MVH26/36/46/56 models Lock the stem extension c on the rack placing the indicator disk a and the jagged washer b.
Page 2 MVH36A models Lock the stem extension c on the rack placing the indicator disk a and the jagged washer b. Assemble the ac- tuator to the valve by U-bolt and the two nuts with the washer without locking the nuts. - Lift the valve stem - Remove the cover and rotate the pivot clockwise so that the rack comes out for assembling it with the valve stem;...
Page 3 MVH36C models Lock the stem extension c on the rack placing the indicator disk a and the jagged washer b. - Remove the cover - Rotate the pivot 1/2 turn counter-clockwise and lock it by a spanner as shown in the picture. - Lower the valve stem - Screw the extension on the valve stem until the...
Page 4 On the power supply line install a protection device compliant to existing rules with a 125 mA intervention threshold and a minimum 3 mm contact opening. The device is not supplied with the product. MVH26/46 MVH36/36A/36C/56...

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