Triggered
position
B20
Stages 2 and 3
Stage 1
Figure 9.
Setpoint Verification Phase
Type EZR
9
Europe, Middle East and
Africa Only
COMMISSIONING
Operations concerning the integral slam shut version are
in italic.
All interventions on equipment should only be
performed by qualified personnel
Preliminary Verifications
Start-up positions
• Inlet and outlet valves
Closed
Verify the absence of pressure between inlet and
outlet valves
• Slam shut valve plug
Closed
• Pilot
A
Unloaded
• Restriction
B
START position
Slam shut set point verification
Using the atmospheric valve, inject a pressure equal to the
pressure required for the regulator
• 1
st
release relay stage
Set (Stage 1)
• Slam shut valve plug
Open (Stages 2 and 3)
Progressively increase the pressure to
reach tripping
Adjust setting if necessary (D103683X012_OS2_IM)
Note the set point value on the equipment
or mark it on a commissioning document
Positions before commissioning
•
Impulse line isolating valve
Open
•
Impulse line atmospheric valve
Closed
•
Slam shut valve plug
Closed
• Servicing valve
Closed
The equipment is ready for commissioning
Commissioning
(Act slowly)
• Inlet valve
Open
very
slowly
•
1
st
release relay stage
Set (Stage 1)
•
Slam shut valve plug
Bypass (Stage 2)
Open (Stage 3)
• Servicing valve
Open slightly
• Pilot
Screw to set outlet pressure
• Outlet valve
Open slowly
• Restriction
Set to "RUN" by successive fractions 2, 4 or 6
• Servicing valve
Closed
The equipment is commissioned
It is recommended to seal the release relay
