VAL
S
TEAM
ADCA
Produced in accordance with Sound Engineering Practices of the European PED - Pressure Equipment Directive.
IMI PS130.08 E 00.22
15
• The supply pressure is greater than the required set pressure but does not exceed
the pressure rating of the regulator.
RISK OF PRODUCT DAMAGE DUE TO CONTAMINATION
The plant operator is responsible for cleaning the pipelines in the plant as
well as keeping the product well maintained. At start-up,
the presence of
small particles in the medium (dirt, scale, weld splatters, etc.) may damage
the product or cause malfunction.
• Flush pipelines before start-up.
•
Clean protection varnishes from pipes and flanges, leftover paint, graphite,
grease, etc.
•
Use a pipeline strainer or a filter.
NOTICE
5.2. Start-up procedure
1.
Slowly open the downstream shut-off valve to prevent sudden surges of pressure
that can damage the regulator.
2.
Operation is performed by turning the adjustment knob (19) clockwise to increase
set pressure and counterclockwise to decrease set pressure.
3.
Partially open the upstream shut-off valve to allow the regulator to sense the inlet
pressure with minimal flow.
4.
Close the upstream shut-off valve and verify the set pressure with the aid of the
upstream pressure gauge.
5.
Turn the adjustment knob (19) to adjust the set pressure and repeat steps 3 and 4
as necessary. Make sure the final adjustment is made in the direction of increasing
pressure (clockwise rotation of the adjustment knob) to obtain the most accurate
set pressure.
6. Adjust the system supply pressure to its normal working value and continue to
slowly open the upstream shut-off valve.
7. Check for any leaks.
8. Check the pressure regulator to ensure it is operating correctly.
24 hours after system start-up, it is recommended to check pipe connection
for leaks and retighten when necessary. Clean strainers/filters to avoid
blocking.
NOTE
