172-65254M-03 (A-COS-10) 27 Oct 2008
11
Adjustment
The
COSPECT
reducing valve should be properly adjusted for protection of the air
equipment.
1. It is necessary to blow down all pipe lines thoroughly. The blowdown is especially
important if the line is new or has been shut down for a long period of time.
Take particular care to ensure that matter such as condensate and dirt does not
remain inside the air equipment.
(Stay clear of any pressurized blow-out from the safety valve.)
2. Make sure that the shut-off valve and the bypass valve located upstream and
downstream of the
COSPECT
are completely closed.
3. Remove the spanner cap, loosen the locknut and turn the adjustment screw
counterclockwise to reduce tension on the coil spring.
4. Slowly, fully open the shut-off valve at the inlet of the
COSPECT
. Allow sufficient
time for condensate remaining at the inlet of the
COSPECT
to be discharged.
5. Slightly open the shut-off valve at the outlet of the
COSPECT
.
6. Turn the adjustment screw until the desired outlet pressure is obtained. Wait
several minutes.
7. Slowly, fully open the shut-off valve at the outlet of the
COSPECT
.
8. After setup, retighten the locknut and replace the cap.
9. When shutting down the system, always close the outlet shut-off valve first and
then the inlet valve.
Loosen the locknut
Loosen the adjustment screw
Loosen the Adjustment Screw
Decrease Pressure
Counterclockwise
Clockwise
Counterclockwise
Tighten the Adjustment Screw
Increase Pressure