Azbil ACN Series, User Manual

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2-1
Chapter 2. Installation
2-1. Maximum lift limits of eyebolts
The diaphragm case has a pair of lifting eyebolts. These eyebolts primarily are for lifting the
actuator alone. Before using the eyebolts for other purposes (such as lifting an actuator fixed
to its valve body or other components), take note of the allowable maximum lifting loads of
the eyebolts that are as shown in the following Table 2-1.
Table 2-1. Maximum lifting loads of eyebolts
Actuator model No.
Allowable Maximum
Lifting Load of Eyebolts
Weight of Actuator Alone
HA2, HA2R
HA3D, HA3R
HA4D, HA4R
160 kg
160 kg
220 kg 16 kg
32 kg
68 kg
Note: The eyebolts may be used to lift the actuator together with its valve body (cast globe
valve) of up to pressure rating “Class 600“. When doing this, be extremely careful so that
no shock or other abnormal force is applied to the actuator or the valve body.
2-2. Installing valve on process pipe
(1) Before installing the valve on the process pipe, remove foreign substances (such as scales
and welding chips) from both upstream and downstream sides of the process pipe.
(2) Confirm that the direction of process fluid flow conforms with that of the arrow provided
on the valve body.
(3) Pay attention so that the pipe connection gaskets do not extrude into the process pipe
inside. Be sure to use gaskets made of material which is suitable for the process fluid. The
welded type of valve employ no gaskets.
(4) Pay attention so that no excessively large stress is conveyed from the process pipe to the
valve body. Uniformly tighten the bolts of the process pipe connection flanges. The high
pressure type of valves have no flanges, since they are welded to the process pipe.
(5) Before connecting the air pipes to the actuator and positioner, blow the pipes to clean
them.
(6) Do not install any heating or cooling provisions on the bonnet.