Azbil Corporation
Model: AMT, HDT - CV3000 Series Control Valves
5
2. INSTALLATION
2.1 Maximum Lifting Loads of Eyebolts
The diaphragm case has a pair of lifting eyebolts. These eyebolts primarily are for
lifting the actuator alone. When using the eyebolts for other purposes (such as lifting
an actuator bed to its valve body or other components), note that the allowable
maximum lifting loads of the eyebolts are as shown in the following table.
Table 2-1 Maximum Lifting Loads of Eyebolts
Actuator Model No.
Allowable Maximum
Lifting Load of Eyebolts
Weight of
Actuator Alone
PSA1 160kg 8kg
HA2 160kg 16kg
HA3 160kg 32kg
HA4 220kg 68kg
Note: The eyebolts may be used to lift the actuator together with its valve buy
(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 in Process Pipe
(1) Before installing the valve in the process pipe, remove foreign matter (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
arrowhead mark 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 welding 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 flange. The high pressure type of valves have no flanges, since they
are connected to the process by welding.
(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.
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