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SERVING THE GAS INDUSTRY WORLDWIDE

Technical Description

GAS PRESSURE REGULATOR SERIES 280 - 284

BRYAN DONKIN RMG GAS CONTROLS LIMITED


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Application

• Designed for use on gas distribution systems and for services to industrial and commercial premises. Also forindustrial feeds to burners, heater units, boilers and other items of equipment where an accurate, safe anddependable pressure controlled supply is required.

Introduction

• The Series 280-284 are spring loaded, externally implused, high capacity regulators. The design incorporates a totallybalanced, single ported valve which in conjunction with a streamlined body assures high flow capabilities. A two-wayvent valve ensures excellent speed of response combined with stable control of outlet pressure.

• Use with confidence on natural and manufactured gases of non-aggressive nature, including Nitrogen, Carbon Dioxide,Propane and Butane.

Features

• Cartridge type construction allows easy unit withdrawal of all working parts ensuring straightforward maintenancewithout removing the body from the pipe line.

• Excellent control throughout entire working range.• Positive lock-up, under no flow conditions.• Balanced Valve gives excellent control over full inlet pressure range.• Valve travel indicator.• External control line (ECL) connection fitted with fixed stabilising jet.

Service Temperature

-20OC to +60OC

Connections

Flanged: PN16: BS EN 1092-2: 1997* Alternative drilling may be considered on request.

Installation

The regulator may be mounted in anyorientation to suit site conditions.Moisture or debris must be preventedfrom entering the vent valve. For optimumperformance the recommended operatingposition is with diaphragm casinghorizontal and spring housing pointingvertically upwards. For a regulatorinstalled in the inverted position, thespring ranges are reduced by 7.5 mbarg (3” wg) for the Series 280 and12 mbarg (5” wg) on the Series280H/282H.

It is important when installing equipmentthat pipeline stresses are kept to aminimum and no undue external forcesare placed on the connections.Note: On some industrial and burner applications,where rapid changes in flow rates occur, it may benecessary to fit a variable jet into the regulator impulseline to tune the regulator to the downstream system.

Technical Data

* Suitable for inlet pressure up to 8 bar (116 psi) - direct acting, and 10.3 bar (150psi) when fittedwith an auxiliary control system.

REGULATOR SELECTION GUIDER gnirpSrotaluge

Maximum InletPressure

Model Size 12mbar(5”wg) to225mbar(3.25psi)

10mbar(4”wg) to200mbar(2.9psi)

140mbar(2psig) to

1.0bar(14.5psi)

DN 100

DN 50

DN 80

DN 50

DN 50

DN 50DN 80

•

•

•

•

••

4.5 barg(65 psig)

10.3 barg(150 psig)

4.5 barg(65 psig)

280

280H

282*

282H*

284


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Spring Selection, Materials of Construction

Ease of Maintenance

The illustration shows how quickly and easily the cartridgecan be removed from the regulator body, leaving the valvebody in the pipeline. By utilisation of a spare cartridgeassembly, maintenance can be carried out with minimuminterruption to the gas supply.

SPRING SELECTION

MATERIALS OF CONSTRUCTION

Component

Valve Body

Diaphragm Casing (Top and Bottom)

Valve Orifice

Diaphragms

Valve Seat

Valve Travel Indicator

Material

Ductile Iron to BS EN 1563Grade EN-GJS-400-18

Aluminium Alloy to BS.1490: Grade LM4

Stainless Steel to BS.970: Grade 416S21

Terylene reinforced Nitrile rubber, Pentane Resistant

Nitrile Rubber

Polycarbonate

* These springs are nested, both being required for the pressure range stated, please contact BD-RMG for advice when changing springs. ** Spring No. 778 requires special spring adjuster.

The pressure ranges given apply to regulators installed horizontally with the spring casing pointing vertically upwards.

DN 50 FL

DN 80 FL

DN100 FL

DN 50 FL

DN 80 FL

12 - 2018 - 3525 - 5030 - 70

66 - 10496 - 138

112 - 225

10 - 2018 - 3018 - 3728 - 4038 - 6055 - 80

75 - 140112 - 200

140 - 260230 - 500

460 - 1000

200 - 400400 - 725

675 - 1000

5 - 87 - 14

10 - 2012 -28

26.5 - 41.538.5 - 5545 - 90

4 - 87 - 127 - 15

11 - 1615 -2422 - 3230 - 5645 - 80

2.0 - 3.8 psig3.3 - 7.2 psig

6.7 - 14.5 psig

2.8 - 5.8 psig5.7 - 10.4 psig9.7 - 14.5 psig

548824938546774775

778**

378402

1007403405406407857

849 * 848851 * 850853 * 852

11671168

1169 & 1168*

SelfLight GreenLight Blue

GreyBrownOrange

Dark Blue

White/MaroonBlack/MaroonBlue/Maroon

Green/MaroonRed/Maroon

Brown/MaroonGrey/MaroonStone/Maroon

Red - BlackGreen - WhiteYellow - Blue

GreyBrown

Orange - Brown

280280280280280280280280

284284284

284284284

280H & 282H280H & 282H280H & 282H280H & 282H280H & 282H280H & 282H280H & 282H

SizeOutlet Pressure Range Spring

mbarg ins wg Number ColourRegulator Model

&

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Capacities for Series 280-284 Regulators

CAPACITY CHART

Inlet Pressure

Capacities in s.c.m.h. of natural gas SG = 0.6

50 mbar

1.0 bar

75 mbar

100 mbar

150 mbar

200 mbar

250 mbar

500 mbar

750 mbar

1526

152650

15265085

15265085

117

15265085

117

15265085

117

15265085

117

15265085

117

50117140260500

220230

300330225

462428330220

550520478330250

703662560565470

831833795598563

12211283126011831150

16541709169016781631

202619701050855380

485398

550465310

605595595497

805720795875566

980835995

1220865

1250880

112014201150

24501800202524102050

31003180298034203300

414541454145

--

11601050

125013001230

1400150014501000

2125220018751100700

28752700245020001725

30003050287526502525

46004600440041003650

59005950595056504950

685066006600

--

Outlet Pressure REGULATOR SIZE

mbar DN 50 FL DN 80 FL DN 100 FL


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Capacities for Series 280-284 Regulators

CAPACITY CHART

Inlet Pressure

Capacities in s.c.m.h. of natural gas SG = 0.6

50117140260500

1000

50117140260500

1000

50117140260500

1000

50117140260500

1000

50117

50117

50117

50117

50117

50117

2641259714051360815

1100

311631371810165012651330

391341492250225018001850

452850272715281524202510

61026102

71297129

81538153

91779177

1009410094

1115011150

532552955290

---

643064306420

---

858085808570

---

107101070010700

---

860086008600

---

102001020010200

---

133601336013360

---

166901669016690

---

Outlet Pressure REGULATOR SIZE

mbar DN 50 FL DN 80 FL DN 100 FL

1.5 bar

2.0 bar

3.0 bar

4.0 bar

5.0 bar

6. 0 bar

7.0 bar

8.0 bar

9.0 bar

10.0 bar

The above figures are for appropriately sized expanded outlets, 10% droop.

Types of Gases:The capacities shown in thetables are given in terms ofnatural gas SG 0.6. For allother gases multiply by thefollowing correction factor:

0.6SG of gas handled

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Dimensions & Weights

DIMENSIONS AND WEIGHTS

Regulator

Model Size A B C D E F Cartridge Body Total

gK :thgieWmm :snoisnemiD

280

280H & 282H

280H

284284

DN 100

DN 50

DN 80

DN 50DN 80

352

254

298

254298

451

380

380

210290

187

160

195

142176

635

420

455

354450

140

132

132

Connectionon the 284 is radial notparallel with

axis

845

540

650

474640

40.8

13.2

16.3

11.929.0

27.6

11.8

19.0

11.819.0

68.4

25.0

35.3

23.748.0


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Sectional Arrangement

Valve Travel Indicator

Die CastAluminium AlloyCasings

ValveBalance Tube

INLET OUTLET

NitrileValve Seat

StainlessSteel Orifice

External Control LineConnection (E.C.L) Rc 1⁄2

Roll-Out TypeBalancing

Diaphragm

Two-WayVent Valve

Colour CodedSpring

Inlet Pressure

Outlet Pressure

Atmospheric Pressure

KEY

SERVING THE GAS INDUSTRY WORLDWIDE

RMG is your worldwide partner for gas control equipment, ranging from exploration to consumer supply. The comprehensive range of RMG products andsystems provides you with a total solution for all your gas control and measurement needs.

Modern manufacturing techniques combined with our expertise and specialist knowledge in the design and build of gas control equipment, including fully automated stations has earned RMG a worldwide reputation for supply of safe, accurate and reliable equipment.

WWW.RMG.COM

GERMANY

RMG REGEL + MESSTECHNIK GMBH Osterholzstrasse 45 D-34123 Kassel Tel +49 (0)561. 5007-0 Fax +49 (0)561. 5007-107 RMG MESSTECHNIK GMBH Otto-Hahn-Strasse 5 D-35510 Butzbach Tel +49 (0)6033. 897-0 Fax +49 (0)6033. 897-130 Works Ebersberg: - Software development - Anzinger Straße 14 D-85560 Ebersberg Tel +49 (0)8092. 20 97-0 Fax +49 (0)8092. 20 97-10 ENGLAND

BRYAN DONKIN RMG GAS CONTROLS LTD. Enterprise Drive, Holmewood Chesterfield S42 5UZ, England Tel +44 (0)12 46 501-501 Fax +44 (0)12 46 501-500 POLAND

GAZOMET SP. Z O.O. ul. Sarnowska 2 63-900 Rawicz, Polen Tel +48 (0)65 546 24 01 Fax +48 (0)65 546 24 08

WÄGA WÄRME-GASTECHNIK GMBH Osterholzstrasse 45 D-34123 Kassel Tel +49 (0)561. 5007-0 Fax +49 (0)561. 5007-207 RMG-GASELAN REGEL + MEßTECHNIK GMBH Julius-Pintsch-Ring 3 D-15517 Fürstenwalde Tel +49 (0)3361. 356-60 Fax +49 (0)3361. 356-836 CANADA

BRYAN DONKIN RMG CANADA LTD. 50 Clarke Street South, Woodstock Ontario N4S 0A8, Canada Tel +1 (0)519 53 98 531 Fax +1 (0)519 53 73 339 UNITED STATES OF AMERICA

MERCURY INSTRUMENTS INC. USA 3940 Virginia Avenue Cincinnati, Ohio U.S.A. 45227 Tel +1 (0)513 272 1111 Fax +1 (0)513 272 0211

The Bryan Donkin RMG Gas Controls policy is one of continuous improvement and development. The company reserves the right to change or introduce improved designs without notice.

R.280-01.01.08

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