172-65175MA-13 (COS Pressure Reducing Valve) 16 Feb 2022
11
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
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 COS unit, 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.
(Found in 3 locations, on the product inlet and outlets.)
3. Installation Angle
Install the COS 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. Spacer Installation
If spacing adjustment is necessary to accommodate installation, install a
spacer on the outlet flange.
The spacer should consist of a
spacer, gaskets, bolts and nuts.
Fit gaskets to both sides of the
spacer between the COS outlet
and the pipe flange. Fasten with
bolts and nuts.
5. Piping Support
Blowdown Using Bypass Valve
Closed
Closed
Open
COS
10
10
15
15
15
15
Correct Spacer
Location
Incorrect Spacer
Location