172-65142M-04 (TC8) 11 Oct 2021
6
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
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
Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
The following is an outline of the basic installation procedure.
1. Assemble the valve body and regulating thermostat
2. Install the product on the piping
3. Install the temperature sensor
These steps are covered in more detail below:
(1)
ASSEMBLING THE VALVE BODY AND THE REGULATING
THERMOSTAT
a)
First take the valve body and the regulating thermostat.
b)
The valve and the regulating thermostat should be installed so that:
(1) the arrow on the valve body points in the direction of flow of the
medium, and
(2) the capillary tube travels in the direction of the control
thermostat.
c)
Use a 36 mm open-ended torque wrench to tighten the union nut to
roughly 40 N·m torque (400 kg·cm), so that the valve and the
thermostat no longer move. If the union is not sufficiently tight, the
product may not function properly.
(2)
PIPING
a)
This product must be installed only on horizontal pipes
b)
Before installing the product on the piping, be sure to blow out the
pipes first to get rid of any dirt or scraps inside. This is even more
important when installing the product on new pipes or on pipes
which have not been used for some time.
c)
Install a strainer on the pipe before the product inlet. This is to
prevent things like dirt or welding scraps getting into the product
and causing damage to parts of the valve such as the valve seat.
The strainer should be fitted so that the screen is horizontal,
following both the direction of flow of the medium and the arrow on
the valve body, and with enough space for the screen to be
removed when necessary.
d)
Stop valves should be installed at the product inlet and outlet to
allow the flow of the medium to be stopped when necessary and to
allow maintenance checks to be carried out.
e)
Remove the union nuts from the product and connect them to the
pipe (for flange valves, flanges must be welded to the pipe).
f)
The medium must flow through the valve in the direction indicated
by the arrow on the valve body. The control thermostat must hang
down vertically from the valve body.
