172-65237A-01 (J10) 11 Mar 2021
8
Operation
Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
1. For Start-up Operation
(1) Just after the trap is installed or when it has been idle for a long period of time, be
sure to blow out the rust and scale from the inside of the piping before opening
the trap inlet valve.
(2) After opening the outlet valve, slowly open the inlet valve, being very careful not
to open it too suddenly. When this is done, the steam trap will begin operation
automatically. It will shortly stabilize into normal operation. If air binding or steam-
locking occurs, or to more rapidly vent large quantities of initial air in the piping,
use the lock release valve (see “Lock Release Valve Operation” below).
(3) Reconfirm the status of the trap operation (see the “Operational Check” section).
If status is normal and stable, continue use with the valve open as it is.
(4) When the trap will not be used for long periods of time, be sure to discharge any
residual condensate to prevent the pipes from rusting.
2. Corrective Measures When a Malfunction Occurs
(1) In the event of an abnormality, first carry out the following:
a) Close the inlet valve and outlet valves.
b) Open the bypass valve and discharge the condensate from the equipment and
pipes using the bypass.
(2) Let the trap body cool thoroughly and, being careful of residual pressure and hot
condensate, take the appropriate corrective measures in line with the remedial
procedures described in the troubleshooting section.
Lock Release Valve Operation
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way. Failure to
observe these precautions may result in damage to the product or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
Installation, inspection, maintenance, repairs, disassembly, and adjustment should
be done only by trained maintenance personnel.
To operate the lock release valve:
1. Remove the lock release valve cap with a 27 mm
(1
1
∕
16
”) wrench.
2.
Using a 10 mm (⅜”) wrench, turn the lock release
valve stem counter-clockwise.
3. With an appropriate number of turns air binding
or steam-locking will cease and the trap will
function normally.
If necessary, increase the degree of valve
opening further.
4. After having checked that the trap continues
working normally, close the lock release valve by
turning the stem clockwise, and reinstall the cap
(tighten to a torque of 15 N
m (11 ft
lb)).
CAUTION
Do not leave the lock release valve open during regular operation. Always be sure
to close the lock release valve after eliminating air binding or steam-locking.
Cap
Stem
Valve
Seat
