Emerson REGAL 3F Instruction 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 Identifi cation 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 classifi ed
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 classifi ed 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 fl ow 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 orifi ce 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, 1st and 2nd family gas
according to EN 437, or other gases (compressed air, nitrogen). The gas
must be noncorrosive, clean (fi ltration 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 orifi ce
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 orifi ce

• 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 orifi ce

• 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

O

270

100 100

365

30

0

181

177.5

148

O

1

6

6

83

253

4

0

*

4

0

*

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 orifi ce.

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 verifi cations.

No modifi cation 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 specifi c calculations may be supplied
according to specifi c requirements.

CAUTION

All interventions on equipment should
only be performed by qualifi ed 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 fl uid fl ow
(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, fl anges) 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 fl anges).

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 qualifi ed personnel.

Operations concerning the integral slam shut version types
VSX2 and OS2 are in italic.

Preliminary Verifi 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

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

Verifi cation:

• Verifi cation 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 verifi cation (and tripping verifi cation 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 orifi ce
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 orifi ce
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)

Verifi cation:

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 fl at spanners for fl anges: 24

Adjustment spanner for VSX2: Ref. 197 226

Regulator

• Valve plug closed (no fl ow)

• 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 orifi ce (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

11

REGAL 3F

Item Description Reference

1 Valve plug assembly 181 058

2 O-ring 400 506

3 Diaphragm 142 033

4 Clutch O-ring 400 505

5 Spring

See Table 3

6 Cap O-ring 400 080

7 Screw 403 030

8 Actuator/body O-ring 400 029

9 Truarc ring 406 201

10 Sensing diaphragm 138 369

11 Tightshut washer 461 173

12 Orifi ce 142 017

13 Orifi ce O-ring 400 102

With Slam Shut Type VSX2 Type OS2

14 Circlips 406 153

15 Spring 144 064

16 Valve plug 142 130

17 Slam shut Pu O-ring 400 081

18 Slam shut Pd O-ring 400 074 -

19 Screw 403 028

20 Bypass O-ring 400 501

21 Stem O-ring - 400 505

22 Diaphragm assembly 181 017 181 027 181105

23 Slam shut assembly 196 433 196 250 196245

Without Slam Shut

24 Bottom O-ring 400 081

Spare parts kit (commissioning spares) 197 480

Table 7. Spare Parts

REGAL 3F

Americas

McKinney, Texas 75070 USA
T [phone]

[phone]

Europe

Bologna 40013, Italy
T [phone]

Asia Pacifi c

Singapore 128461, Singapore
T [phone]

Middle East and Africa

Dubai, United Arab Emirates
T [phone]

D103693X012 © 2017, 2018 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 07/18.
The Emerson logo is a trademark and service mark of Emerson
Electric Co. All other marks are the property of their prospective owners.
Francel™ is a mark owned by Francel SAS, a business of Emerson
Automation Solutions.

The contents of this publication are presented for information purposes
only, and while effort has been made to ensure their accuracy, they are
not to be construed as warranties or guarantees, express or implied,
regarding the products or services described herein or their use or
applicability. All sales are governed by our terms and conditions, which
are available on request. We reserve the right to modify or improve the
designs or specifi cations of our products at any time without notice.

Emerson Process Management Regulator Technologies, Inc does not
assume responsibility for the selection, use or maintenance of any
product. Responsibility for proper selection, use and maintenance of any
Emerson Process Management Regulator Technologies, Inc. product
remains solely with the purchaser.

Francel SAS, 3 Avenue Victor Hugo,CS 80125, Chartres 28008, France
SIRET 552 068 637 00057 APE 2651B, N° TVA : FR84552068637, RCS Chartres B 552 068 637,
SAS capital 534 400 Euro

Emerson Automation Solutions

Francel.com

Facebook.com/EmersonAutomationSolutions

LinkedIn.com/company/emerson-automation-solutions

Twitter.com/emr_automation

[e-mail]