6
REGAL 3F
The user should verify or carry out a
protection adapted to the environment.
Version with slam shut, if the outlet side is
subject to the PED and not protected by any
other means, verify that no component is
superior to category 1.
COMMISSIONING (Figure 4)
CAUTION
All interventions on equipment should only
be performed by quali
fi
ed personnel.
Operations concerning the integral slam shut version types
VSX2 and OS2 are in italic.
Preliminary Veri
fi
cations
Start-up Positions
• Inlet and outlet valves
- Closed
Verify the absence of pressure between inlet and outlet
valves
• Set point adjustment screw
- Unscrewed (case 1) or set (case 2)
• Slam shut valve plug
-
Closed
• Impulse isolating valve (R1)
-
Closed
SLAM SHUT SET POINT VERIFICATION
Type VSX2
Using the atmospheric valve (R2), inject a pressure equal to
the pressure required for the regulator
• Slam shut valve plug
-
Set (Unscrew, pull, rescrew the resetting button
(see D103683X012 manual))
-
Progressively increase the pressure to reach tripping
-
Adjust the setting if necessary (see D103695X012
manual)
Note the set point value on the equipment or mark it on a
commissioning document
Type OS2 (Figure 7)
Using the atmospheric valve (R2), inject a pressure
equal to the pressure required for the regulator
• 1
st
release relay stage
-
Set (Stage 1)
• Slam shut valve plug
-
Set (Stages 2 and 3)
-
Progressively increase the pressure to reach tripping
-
Adjust the setting if necessary (see D103683X012 manual)
Note the set point value on the equipment or mark it on a
commissioning document
Positions before Commissioning
• Impulse isolating valve (R1)
-
Open
• Impulse atmospheric valve (R2)
-
Closed
• Slam shut valve plug
-
Closed
• Servicing valve
- Closed
The equipment is commissioned
Commissioning
• Inlet valve
- Open
very
slowly
• Slam shut valve plug
Type VSX2
• Slowly unscrew (bypassage)
-
Verify that the outlet pressure corresponds to the set
point required. If not, adjust the regulator set point
(adjustment screw)
-
Pull (set, when the bypassage is completed)
-
Gently push back and rescrew
Type OS2 (Figure 7)
• 1
st
release relay stage
-
Set (Stage 1)
Travel
stop
Travel
stop
Travel
stop
Tripped position
Stage 1
Stages 2 and 3
Figure 7
. Release Relay Activation Stages
