Emerson REGAL 3F User manual

REGAL 3F
Instruction Manual
D103693X012
July 2018
Direct-Operated Regulator
SUMMARY
INTRODUCTION........................................................... 1
DESCRIPTION.............................................................. 2
CHARACTERISTICS..................................................... 2
LABELLING................................................................... 3
DIMENSIONS AND WEIGHTS...................................... 4
OPERATION.................................................................. 4
INSTALLATION ............................................................. 5
COMMISSIONING......................................................... 6
MAINTENANCE ............................................................ 7
SPARE PARTS.............................................................. 10
Type Regal 3F/OS2
Figure 1. Type REGAL 3F Direct-Operated Regulator
DECLARATION OF CONFORMITY REGAL 3F
Manufacturer: FRANCEL
Address: 3 avenue Victor Hugo, 28008 Chartres
Equipment: REGAL 3F Identification no.:
Conformity Assessment Module: Module A
The undersigned declare that the design, manufacture and inspection of this equipment are in conformity with the Pressure Equipment
Directive 2014/68/UE (PED)
Name: Function: Company stamp:
Date: Signature:
The type REGAL 3F is in conformity with the Pressure
Equipment Directive PED 2014/68/UE and is classified
under category I.
Equipment and pipeline situated on the outlet side of
the regulator are either;
• not subject to the PED (Pu <= 0.5 bar), or
• subject to (Pu > 0.5 bar): in this case the type
Regal 3F is classified under category 1 maximum.
INTRODUCTION
The type REGAL 3F is a direct-operated, spring set point
pressure regulator, used for supplying industries and
commercial businesses.
As an option, it can be equipped with a slam shut types VSX2
or OS2 which permits the gas flow to be cut off rapidly and
totally in the case of under or over outlet regulator pressure.
Type Regal 3F/VSX2

2
REGAL 3F
CHARACTERISTICS
Material
Body Ductile iron
Sitting part Brass
Actuator Aluminium
Regulator/slam shut orifice Brass
Regulator valve plug Aluminium
Slam shut valve plug Aluminium
Regulator/slam shut plug disc Nitrile
* BMS : Safety Manometric Box
Operating pression
Body, valve plug, slam shut
PS
4 bar
Actuator 1.5 bar
BMS* associed, according to size 5 bar
Operating temperature TS - 20 / 60 °C
Outlet pressure Pd 100/1000 mbar
REGULATOR
Accuracy
AC 5
SG 10
SZ 10
Inlet/Outlet diameter DN 50
Fluid
Groups 1& 2 according to PED 2014/68/UE, 1
st
and 2
nd
family gas
according to EN 437, or other gases (compressed air, nitrogen). The gas
must be noncorrosive, clean (filtration on inlet side necessary) and dry.
Table 1. General Characteristics for Type Regal 3F Regulator
DESCRIPTION
The Regal 3F consists of:
A Version without Integral Slam Shut
• A body, a diaphragm actuator, a bottom
• A diaphragm-balanced valve plug, an orifice
Depending on set point required:
- A Pd set point adjustment spring
A Version with Integral Slam Shut Type VSX2
• A body, a diaphragm actuator
• A diaphragm-balanced valve plug, an orifice
• An integral bypass slam shut in place of the bottom (see
D103695X012 manual)
Depending on set point required:
- A Pd set point adjustment spring
- A tripping spring set to max
- A tripping spring set to min
A Version with Integral Slam Shut Type OS2
• A body, a diaphragm actuator
• A diaphragm-balanced valve plug, an orifice
• A slam shut connecting part in place of the bottom
• A valve plug with integral bypass
• A release relay type OS2 (see D103683X012 manual)
- A safety manometric box (BMS) for connection outlet
side of the regulator
- A mechanism box (BM)
Depending on the set point required:
- A Pd set point adjustment spring
- A max. and min. set point tripping spring
Orientation and Regulator Impulse Line
The actuator and slam shut can be orientated 360°.
The regulator impulse line is connected directly onto the
body, which makes maintenance easier (the actuator can be
removed without disconnecting the impulse pipeline).
Connections
Inlet/Outlet: ISO PN 10
Actuator impulse line ISM : 1/2’’ NPT tapped
Actuator vent: 3/4’’ NPT tapped
Impulse line: Internal pipe Ø >= 15 mm
Slam shut impulse line (VSX2 / OS2) IS : 1/4” NPT tapped
Impulse line (VSX2) : Internal pipe Ø >= 4 mm
(OS2) : Internal pipe Ø >= 8 mm
Slam shut vent (VSX2/OS2) : 1/4’’ NPT tapped
Contact (OS2) : See D103683X012 manual

3
REGAL 3F
Pset max
Date Fab/Test
N°serie/Serial N°
PS
Type
TS
DN
Cat.
PN
Regulateur
Regulator
FRANCE
28320 Gallardon
Groupe fluide 1
(Gaz naturel)
50
REGAL3F 10
4 bar - 20 / 60°C I
JJ MM 20AN
0.320 bar
1.5 bar
FRANCEL
Code
FRANCEL
Regulateur
Regulator
FRANCE
28320 Gallardon
902237
100 / 320
300
NO
Plage / Range (mbar)
Réglage / Set (mbar)
Soupape / Relief
Tarage / Set (mbar)
Tarage / Set nominal
Plage / Range
Code
Type
AG maxi
PS
Sécurité
Slam shut
10 barVSX2LPC3
196433 10
Min (mbar)
FRANCEL
Max (mbar)
100 / 350
200
260 / 600
400
5
Wdso
BMS
PSD BMS
N°
AG maxi
Taille
Size
Série
Serial
Ressort/Spring Ø
Wdsu
162 5
2.5
bar
bar
mm
1 2
Fisher
LABELLING
PED label Regulator label
Type VSX2 slam shut label Type OS2 slam shut label
Table 4. Set Point Spring & Slam Shut Range Table
Figure 2. Type Regal 3F/VSX2 and Type Regal3F/OS2 Labels
Pd (mbar) Pu (bar) Q (m3/h(n)) AC
100 0.7<Pu<1 520 10
100 > 1 520 5
160 0.7<Pu<1 520 10
160 > 1 520 5
300 0.7<Pu<1 520 10
300 > 1 520
500 > 1 500 5
1000 > 2 700
Table 2. Regulator Flow Ranges Table
Pd (mbar) Spring Spring
Nominal Min. Max. Wire Ø Length
(mm) (mm) code
100 60 140 5.5 165 131 918
160 80 180 6.0 142 539
300 100 320 7.0 167 144 300
500 300 550 8.0 170 131 793
1000 400 1100 10.0 144 035
Table 3. Regulator Set Point Spring & Regulator Ranges Table
Wire Ø (mm) Nominal Set Point
Nominal Pd VSX2 Springs OS2 Springs (mbar)
(mbar) Min. Max. Min. & Max. Min. Max.
100 1.4 2.3 3.5 60(1)/70(2) 150
160 1.7 2.6 110 225
300 2.4 3.1 5 200 400
500 3.5 350 650
1000 3.2 4.1 6.5 700 1300
(1) For VSX2 (2) For OS2
Nominal Pd Slam Contact Regulator code
(mbar) Shut
PN10 PN20
OS2 C1 902 463 FSREG3F-19NR
100 VSX2 LP NO 902 464 FSREG3F-20NR
NO 902 465 FSREG3F-21NR
OS2 C1 902 466 FSREG3F-22NR
160 VSX2 LP NO 902 467 FSREG3F-23NR
NO 902 468 FSREG3F-24NR
OS2 C1 902 283 FSREG3F-13NR
300 VSX2 LP NO 902 237 FSREG3F-10NR
NO 902 235 FSREG3F-16NR
OS2 C1 902 454 FSREG3F-14NR
500 VSX2 LP NO 902 453 FSREG3F-11NR
NO 902 456 FSREG3F-17NR
OS2 C1 902 455 FSREG3F-15NR
1000 VSX2 LP NO 902 238 FSREG3F-12NR
NO 902 236 FSREG3F-18NR
Table 5. Regulator Types Table

4
REGAL 3F
O270
100 100
365
300
181
177.5
148
O166
83 253
40*
40*30
180*
DIMENSIONS AND WEIGHTS
Weight
With slam shut: 18.8 kg VSX2 / 24 kg OS2 Without slam shut: 18 kg
* Disassembly
dimentions
Figure 3. Type Regal 3F/VSX2 and Type Regal3F/OS2 Dimensions (mm)
OPERATION
The type Regal 3F is a pressure regulator with expansion
achieved by a balanced valve plug and pressure control by a
direct-operated actuator.
The balanced valve plug/stem assures accuracy
independent of inlet and outlet pressures.
Pressure control is achieved through the actuator
diaphragm, which receives, on the one side, the outlet
pressure and, on the other side the spring load, adjusted to
the desired value by the set point spring.
Tight shutoff is ensured by the regulator plug disc pushing
on the orifice.
The regulator can be equipped with a slam shut using a
release relay types VSX2 or OS2.
In the case of temporary over pressure, the diaphragm plate
assembly will travel up the actuator and sit into the cap, without any
leak or deterioration of the components (disconnector).
Figure 4. Type Regal 3/VSX2 and Type Regal3/OS2
Operational Schematic
OS2
VSX2
Pu Pd
Adjustment screw
Resetting button

5
REGAL 3F
INSTALLATION
Version with integral slam shut, it is
recommended to install an isolation valve
(R1) and an atmospheric valve (R2), which
are useful for tripping and verifications.
No modification should be made to the
structure of the equipment (drilling, grinding,
soldering...).
It is recommended to install a servicing
valve (R3) on the outlet pipeline to facilitate
adjustments and bleeding off to the
atmosphere.
Verify that the inlet side is protected by an
appropriate device(s) to avoid exceeding the
limits of utilization (PS, TS).
Verify that the limits of utilization correspond
to the appropriate operating conditions.
Version without slam shut, verify that a
pressure limiting device on the outlet side of
the regulator guarantees a pressure limit <
or equal to the actuator PS.
Version with slam shut, verify that the
springs (for VSX2), and the safety
manometric box (BMS) and its spring
(for OS2) correspond to the appropriate
operating conditions on the outlet side of the
regulator.
The equipment should not receive any type
of shocks.
Fire, seismic and lightening are not taken
into consideration for standard regulators.
If required, a special product selection and/
or specific calculations may be supplied
according to specific requirements.
CAUTION
All interventions on equipment should
only be performed by qualified and trained
personnel.
!
WARNING
The regulator is installed on horizontal
(recommended) or vertical pipeline. Version
with slam shut, the release relay can be
situated towards the bottom or the top.
Installation according to EN12186 or
EN12279 recommended.
Install according to direction of fluid flow
(arrow).
When assembling with adjacent elements
care must be taken not to create pressure
force on the body and the assembling
elements (bolts, O-rings, flanges) should be
compatible with the geometry and working
conditions of the equipment.
If the case arises a support must be used to
avoid pressure force on the body (a support
can be installed under the flanges).
Connect the actuator (ISM) to the impulse at 4D
minimum on a straight run of the outlet pipe.
Version with integral slam shut, connect the
safety manometric box (IS) to the impulse at
4D on a straight run of the outlet pipe.
It is recommended to separate the slam shut
impulse line (IS) from that of the actuator
(ISM). Do not connect the impulses on the
lower generator line.
Pu
R2
R2
R1
R1
IS : lam shut impulseVSX2 s
IS : OS2 slam shut impulse
D
4D
ISM : Actuator impulse
Pd
R3
Figure 6. Type Regal 3F/VSX2 and Type Regal3F/OS2 Installation Schematic

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 qualified personnel.
Operations concerning the integral slam shut version types
VSX2 and OS2 are in italic.
Preliminary Verifications
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
• 1st 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)
• 1st 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

7
REGAL 3F
• Slam shut valve plug
-Bypassage (Stage 2)
-Open (Stage 3)
• Servicing valve
- Slightly open
• Set point adjustment screw
- Slowly adjust to required value (adjustment screw)
• Outlet valve
- Open slowly
• Servicing valve
- Closed
The equipment is commissioned.
It is recommended to seal the release relay.
MAINTENANCE
Operations concerning the integral slam shut versions are in italic.
Servicing Check
Recommended frequency:
Twice yearly minimum
Verification:
• Verification of the set point
• Regulator valve plug tightness
• Tripping and slam shut valve plug set point value
• Slam shut valve plug tightness
Departure positions
• Inlet valve
- Open
• Outlet valve
- Open
• Slam shut valve plug
-Open
• Regulator
- In operation
Inlet and outlet sides of regulator under pressure
Tightshut verification (and tripping verification for
versions with integral slam shut)
• Inlet valve
-Closed
• Outlet valve
-Closed
• Regulator
-Observe the evolution of the outlet pressure (control
regulator tightness)
SYMPTOMS CAUSE ACTIONS
If the outlet pressure increases Internal leak
Control the regulator valve plug
Control the regulator orifice
or contact after-sales
If the outlet pressure decreases External leak Locate and seal the leak
or contact after-sales
If the outlet pressure is constant The regulator is tightshut
Close the impulse isolation valve
Open the impulse atmospheric valve
Progressively inject pressure
(without exceeding outlet pressure limits)
If the slam shut valve plug will not close Operating fault
Control the release relay
Control the slam shut valve plug
or contact after-sales
If the slam shut valve plug closes Operating correctly
Observe the evolution of the outlet pressure (control tightness)
If the outlet pressure is constant Purge the outlet side of the regulator
Observe the evolution of the outlet pressure (control tightness)
If the outlet pressure increases Internal leak
Control the slam shut valve plug
Control the slam shut orifice
Control the internal bypass
or contact after-sales
If the outlet pressure is constant Slam shut valve plug is tightshut
Table 6. Troubleshooting for Type Regal 3F/VSX2 and Type Regal 3F/OS2 Regulators

8
REGAL 3F
Disassembly of Regulator and Slam Shut
Recommended frequency:
Every 4 to 6 years (or less depending on operating conditions)
Verification:
Diaphragms, valve disc plug, lubrication
Replacement:
O-rings, diaphragms (depending on condition and usage),
tightshut rings
Figure 8. Type Regal 3F/VSX2 and Type Regal 3F/OS2 detail
Spanner Torque (N.m)
44
615
10 6
13 15
Table 5. Corresponding Spanner / Torque Information
Tools
Male spanners for six-sided wrench: 2.5, 4 and 6
Flat spanner: 10
Box spanner: 30 and 46
2 flat spanners for flanges: 24
Adjustment spanner for VSX2: Ref. 197 226
Regulator
• Valve plug closed (no flow)
• Inlet and outlet valves closed
• Bleed off outlet pressure
• Bleed off inlet pressure
• Unscrew the cap (key 6)
• Unscrew the adjustment screw (key 5)
• Remove the adjustment screw assembly (key 5)
• Unscrew the actuator screws (key 3)
• Remove the cover (key 4)
• Unscrew the main diaphragm assembly (key 2)
CAUTION
Before disassembling the diaphragm, not
e the dimension between the relief valve
setpoint nut and the diaphragm plate
assembly (key 2)
• Unscrew screws (key 7) and remove the actuator body
(key 1)
• Control the O-ring (key 8)
• Unscrew screws (key 9)
• Remove the valve plug assembly (key 10)
• Unscrew the orifice (key 11)
• Control the O-ring (key 12)
3
2
1
13
14
18
17
16
15
IS IS
14
12
11
13
10
9
8
7
456

9
REGAL 3F
Slam Shut
Version with Type VSX2 integral slam shut
• Disconnect the impulse pipe (IS)
• Unscrew the screws (key 14) and remove the VSX2 slam shut
• Control the valve plug (key 13)
• Disassembly : see D103683X012 manual
Version with Type OS2 integral slam shut
• Disconnect the impulse pipe (IS)
• Unscrew the screws (key 14) and remove the OS2 slam shut
• Unscrew screws (key 17) from the mechanism box
(key 16)
• Disconnect the valve axe (key 15) from the mechanism
box yoke (key 16)
• Remove the connecting part (key 18) and the valve axle
(key 15)
• Contrôler le clapet de sécurité (key 13)
Reassembly
• Perform the above operations in reverse order (respect
tightening torques)
• Diaphragms to be changed every 6 years or less
depending on condition
• Respect the relief valve setpoint dimension noted during
disassembly
• Replace O-rings at each disassembly
• Lubricate screws before tightening
• Lightly lubricate O-rings (silicone grease)
• Lightly lubricate the valve plug stem (silicone grease)
• Lightly lubricate the slam shut valve plug stem (silicone
grease)
• Lubricate springs (molybdenum graphite grease)

10
REGAL 3F
SPARE PARTS
Figure 9. Type Regal 3F/VSX2 and Type Regal 3F/OS2 Spare Parts detail