172-65587MA-02 (CV-COSR Pneumatic Control Valve) 3 Jun 2019
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5. Maintenance Space
Leave sufficient space for maintenance, inspection
and repair.
6. Drainage Port Usage Example
The threaded condensate drainage port at the
bottom of the body makes possible installation of
a blow valve or steam/air trap. Because the
condensate drainage port is located on the
primary side of the CV-COSR, condensate
flowing in the primary side piping can quickly be
eliminated, contributing to prevention of valve
seat erosion and rapid start-up of the equipment.
7. Accessories
Always install a shut-off valve, pressure gauge and bypass lines at both inlet and
outlet. Ball valves, which will not retain condensate, are recommended for inlet
and outlet shut-off valves. The bypass pipe should be at least
1
/
2
of the size of the
inlet (primary side) pipe.
8. Installation Environment
Check the installation environment to make sure that the ambient temperature
does not exceed the actuator ambient temperature limit and that no corrosive
gasses are present.
9. Shut-off Valve Installation
Though the CV-COSR adequately performs the function of a shut-off valve
initially, extended use will result in a drop in its performance as an isolation valve.
Be sure to install a separate shut-off or automatic valve if complete isolation is
needed.
10. Safety Valve Installation
When installing a safety valve, be sure not to install it between the control valve
and the shut-off valve. It must be installed near the equipment it is to protect,
on the outlet side of the shut-off valve.
Safety Valve
Safety Valve
Drainage Pit
Approx.
300 mm
(12 in)
100 mm
(4 in)
100 mm
(4 in)
110 mm
(4
1
/
2
in)
100 mm
(4 in)
400 mm
(16 in)
400 mm
(16 in)
