172-65260m-05 (S-COS/S-COSR Pressure Reducing Valve) 27 Oct 2008
10
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.
1. Blowdown
Before installing the pressure reducing
valve, 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.
Removing Seal and Cap
Before installation, be sure to remove all
protective seals and caps from the
product inlet and outlet(s).
(Found in 3 locations on S-COS,
2 locations on S-COSR.)
3. Installation Angle
Install the pressure reducing valve vertically, so
that the arrow mark on the body points horizontally
in the direction of steam flow. Allowable inclination
is 10 degrees in the fore-aft direction and
15 degrees in the plane perpendicular to the
steam flow line.
4.
Piping Support
Install the pressure reducing
valve, paying attention to avoid
excessive load, bending and
vibration.
Support the inlet and outlet
pipes securely.
Blowdown Using Bypass Valve
開
閉
閉
PRV
Open
Closed
Closed
S-COS S-COSR
S-COS S-COSR
