To Next Page

To Previous Page

4. INSTALLATION

4.1 Checks to be performed before installation

To assemble the actuator onto the valve proceed as follows:

• Check that the coupling dimensions of the valve flange and stem, or of the relevant

extension, meet the actuator coupling dimensions.

• The electrical supply cables must be suitable for the power rating (see the test certificate

delivered with the actuator);

• Gather the necessary tools for the assembly and setting of the actuator controls;

• Lubricate the valve stem with oil or grease to make the assembly easier: pay attention not

to contaminate with lubricant the flange surfaces which transmit the actuator torque.

• Clean the valve flange and remove anything that might prevent a perfect adherence to the

actuator flange and especially all traces of grease.

• Install the actuator onto the valve so that the shaft output drive enters the groove of the

stem extension. This coupling must take place without forcing and only with the weight of

the actuator. When the actuator output shaft and the valve stem are connected, check the

holes of the valve flange. If they do not meet with the holes of the spool piece flange or the

stud bolts screwed into them, the actuator shaft output drive must be rotated. Actuate the

manual override until coupling is made possible.

Tighten the nuts of the connecting stud bolts evenly.

• If possible, operate the actuator to verify it moves the valve smoothly.

If a long storage period has occurred, before reinstalling the actuator, please:

• check the status of the O-ring seals;

• check the installation of the plugs or cable glands on the cable entries;

• check whether the enclosure covers or the actuator body are cracked or broken;

• put the battery back into place.

4.2 Working condition

Standard F02 actuators are suitable for the following environment temperatures:

-25°C to +70°C (-13°F to +158°F) with 80% humidity

Special versions are available for extreme environment temperatures:

• -40°C to +70°C (-40°F to +158°F) with 80% humidity

• -25°C to +70°C (-13°F to +158°F) with 100% humidity

Important: Check the "ambient temperature range" embossed on the

nameplate, for the correct utilisation with respect to the

ambient temperature. Installation in ambient with temperature

range outside the specified values will invalidate the warranty.

A !@#$ INTERNATIONAL LTD. COMPANY

F02 Quarter-turn Electric Actuators

instruction and operating manual

BIFFI F02 User Manual

Questions and Answers: