172-654741MA-01 (CV-COS-20/CV-COS-20D) 7 Oct 2021
9
Installation
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Use hoisting equipment for heavy objects (weighing approximately
20 kg (44 lb) or more). Failure to do so may result in back strain or other
injury if the object should fall.
CAUTION
DO NOT use only the actuator eye bolt when hoisting or lifting the
assembled product. Failure to observe this precaution may lead to
product damage.
CAUTION
Take measures to prevent people from coming into direct contact with
product outlets. Failure to do so may result in burns or other injury from
the discharge of fluids.
CAUTION
Do not use excessive force when connecting threaded pipes to the
product. Over-tightening may cause breakage leading to fluid
discharge, which may cause burns or other injury.
CAUTION
Installation, inspection, maintenance, repairs, disassembly and adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
Check to make sure that the piping where the product is to be installed is constructed
properly. If the piping is not correctly constructed, the valve may not perform optimally.
1. Blowdown
Before installing the product, be sure to blow down all piping
thoroughly.
If this is not possible, perform a blowdown using the bypass valve.
Blowdown is especially important for newly installed piping or
after the system has been shut down for a long period of time.
2. Installing the actuator section
The eye bolt welded onto the upper part of the diaphragm
housing is for mounting and removing the actuator. Do not lift the
assembled product using only the eye bolt.
(See Fig. 1)
3. Installing the control valve
Lift the assembled product using hoisting equipment such as cranes
and forklifts. Do not lift the assembled product using only the eye
bolt. (See Fig. 2)
Fig. 1
Hoisting the
actuator
Fig. 2
Hoisting the
control valve
