R O T A R Y M E T E R S E R I E S R R M

Type approval

MID

EN12480

OIML R137

Weight & Measurement, India

Metrological Approvals

Performance Details

Dimension

Volume 3(dm ) (Kg)

L H A B C Weight

Corporate OfceRPG House 463, Dr. Annie Besant RoadWorli, Mumbai - 400030Tel.: 91-22-24937485 / 6Fax: 91-22-24938879Email: raychem@raychemrpg.com

Marketing Ofce

th 11 Floor, Vishwadeep Bldg., District Centre, Janak Puri, Delhi - 110058Dir: 91-11-45753737Fax: 91-11-2554 6239Email: prashant_pathak@raychemrpg.com

Raychem RPG Pvt. Ltd.

Manufacturing FacilityRaychem RPG Pvt. Ltd.HTS-TRD-WAGHJAIWaghjainagar Industrialist Association, Chakan, Gat No. 357/97, House no. 94, Kharabwadi - 410501, India

G-ValueVolume* 3V (dm )

Q max3(m /hr)

Q min3(m /hr)

Qt (Air) 3(m /hr)

Diameter D (mm)

P (bar) max ∆P* (Pa)

Basic Transfers** 3(rev-m )

G6

G10

G16

G25

G16

G25

G40

G65

G100

G160

G250

G400

G650

10

16

25

40

25

40

65

100

160

250

400

650

1000

0.5

0.5

0.5

0.5

0.65

0.65

0.65

1.00

1.00

1

1.6

2.5

6.25

0.5

0.8

1.25

2

1.25

2

3.2

5

8

12.5

20

32

50

1.5” BSPT

1.5” BSPT

1.5” BSPT

1.5” BSPT

50

50

50

50

80

80

100

100

150

21

21

21

21

21

21

21

21

21

21

21

12

12

8

20

48

120

28

72

190

400

190

635

230

607

662

4004.3250

4004.3250

4004.3250

4004.3250

2574.2680

2574.2680

2574.2680

1638.1630

861.8609

689.4840

315.3520

315.3520

194.0625

0.24973

0.38846

0.61044

1.16028

1.45036

3.17106

5.15298

0.24973

0.38846

0.61044

1.16028

1.45036

3.17106

5.15298

150

171

150/171

171

171/241

241/260

241/260

156/173

240/257

240/257

303/320

371/371

386/403

501/518

33

68

240

92

118

160

501

123/140

172/189

172/189

211/228

236/253

226/243

283/300

163

163

163

202

202

288

288

5

7

7.5

14

15

38

48

ENGINEERING GROWTHPIONEERING EXCELLENCE

Basic/Univ. Basic/Univ.

Email: krishan_shukla@raychemrpg.com

RRM RPD Meter Details

RRM RPD Meter Working Principle

The RRM series type Rotary Gas Flow Meters work on the principle of Positive Displacement. The actual measurement is performed by two oval (8) shaped rotors rotating within a measurement chamber. During a full revolution of the rotor a xed volume is displaced from inlet to outlet of the meter. The RRM series rotary gas meter measurement chamber makes the two ovals (8)-shaped rotors to turn, the volume of gas closed between the measuring chamber walls and rotors is transported four

0times in one full cycle. The timing gears set the rotors at the angle of 90 one to the other. The gear train, and the hermetic magnetic coupling, transfers the rotor rotation to the index unit, which is separated from the pressure tight housing body. The actual volume of gas is indicated on the mechanical counter.

Mechanical Index Counter

Cartridge Cover

Cartridge

Body

Gas entering into the body starts the Rotor

to rotate. In this position, gas is

captured.(1)

Rotors are rotating and now are at 90° angle and have captured

specic amount of gas.(2)

As s rotate further the gas ows at the outlet of the meter. Gas owing

out is equal to the volume captured at inlet.

(3)

With further rotation of impellers the gas ows

at the outlet of the meter. Gas owing out is equal to the volume captured at the inlet.

(4)

Raychem RPG rotary meters can be equipped (optional) with two Thermo-wells and two pressure tapping points. Therefore the rotary meters can be supplied with an Electronic Volume Conversion Device (EVCD). Raychem RPG offers a large variety in conversion devices so all required data can be provided and the best solution for every project can be assembled. Refer to the special brochure for more information about the Electronic Volume Conversion Devices Raychem RPG is able to supply or contact a local supplier.

RRM RPD Meter Application

Metrological Approvals

Main Features

RRM RPD Meters can be used for various non - aggressive gas application. As the meter is based on Positive Displacement Principle, hence it can be installed without any straight runs and can work at high accuracy in low ow and turbulent ow condition. Some of the gas application and industry applications are mentioned below:

Type of Gases : Natural gas, Propane, Butane, Air, Hydrogen, Non-aggressive gases, etc.

Application: City Gas Distribution, Industrial application, Check Metering, Custody Transfer

For other applications, please contact our sales ofce.

Type approval MID (T10738 RO)

Declaration EN12480:2002/A1:2006 Compliance

OIML Certicate of Conformity (OIML-R137-1(2012)

Weight & Measurement-India

Pressure Equipment Directive (PED) 97/23/EC compliant and IP-67 approved

ATEX : Sensor compliant with Ex ia IIC T4….T6 Gb (-40ºC ≤ Ta +70ºC

Encoder compliant with Ex ib IIB T3... T6 Gb (-25ºC ≤ Ta +55ºC)

3 3Flow range :0.5 – 1000 m /h (lower ow up to 0.25 m /hr available on request)

Diameters & End Connection :DN40 Threaded (BSP) / DN50 – DN150 Flanged

Pressure rates : ANSI 150 – 300, (other on Request)0 0MID temperature range : (-25) C to (+70) C (lower temperatures on request)

ATEX : (-25)°C to (+70)°C

Large Range : from 1:20 to 1:200 depends on G rating

Materials

Body : Aluminium Shafts :Stainless Steel

Impellers :Aluminium Gears : Delrin POM

Cartridge : Aluminium Index Frame : Aluminium

Timing Gears : Steel Bearing : Stainless Steel

Metrological Characteristics

RRM series of rotary meter is calibrated with air at atmospheric pressure, which is traceable to NMI calibrated references. It has been proven – as part of the type approval testing - that the difference between the accuracy at atmospheric air and at high pressure natural gas is negligible.

Accuracy Qt to Qmax : ±1% or better Accuracy Qmin to Qt : ± 2 % o r b e t t e r Repeatability : Better than 0.1%