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Double Filter System RMG 905

General Description

905.01 Edition 03/2002

Serving the gas industry - WORLDWIDE

Double-Filtersystem RMG 905 Characteristics • • • •

large filtration area high degree of filtration quick exchange of the filter insert low resistive gas flow

Technical data max. admissible operating pressure

p = 100 bar

connection

screw connections without brazing and with a compression joint according to DIN 2353 for external pipe diameter 10 mm (thread connection M14 x 1.5)

filter area

247 cm2

filter grade

5 µm ... 7 µm

resistance of gas flow: -new filter insert -exchange of soiled filter insert

at ∆p ≤ 100 mbar at ∆pmax = 1 bar

medium

natural gas, air, nitrogene other gaseous media as an optional feature

material

body: filter insert: o-ring:

PED/CE and DVGW

registered

weight

ca. 1.6 kg

aluminium alloy paper rubber-like plastic material (NBR)

scheme - standard mounting position 122

29

open

89

close open 52

close

110

230

60 85

2

Double-Filtersystem RMG 905 Design and operation The fine filter RMG 905 consists of two body parts. The gas flows through the filter insert from outside to inside. It is possible to clean and re-use the filter insert. The mounting position of the filter RMG 905 is variable.

sealing

outlet connection inlet connection

filter insert

Determination of the resistance of gas flow (new filter insert) The values are calculated for natural gas. In case of other gases it is necessary to convert in the equivalent gas flow rate qn at first. When using a new filter insert the resistance of gas flow should not exceed 100 mbar.

600

qn natural gas = qn Gas f

100 70

400 300

in m3/h

40 200

20

conversion factor f

10 100 80

nitrogene 0.81 air 0.80

5 3

inlet pressure pe in bar

gas flow rate qn in m3/h

60 40 30 20

10 8 6 4 3

example given: pe = 5 bar qn 16 m3/h air equivalent gas flow rate qn natural gas = qn town gas f

=

16 m3/h 0.8

qn natural gas = 20 m3/h

2 1

2

3 4

6

8 10

20

30 40

80

100

200

400

800 1000

result: resistance of gas flow ∆p = 40 mbar

resistance of gas flow ∆p in mbar

3

We supply you with products for gas pressure regulation: RMG REGEL + MESSTECHNIK GMBH Osterholzstrasse 45, D-34123 Kassel, Germany Telephone (++49) 561 5007-0 • Fax (++49) 561 5007 107 gas pressure regulators and safety devices

RMG-GASELAN Regel + Meßtechnik GmbH Julius-Pintsch-Ring 3, D-15517 Fürstenwalde, Germany Telephone (++49) 3361 356-60 • Fax (++49) 3361 356-836 gas pressure regulating equipment, displacement meters, complete stations

Bryan Donkin RMG Gas Controls Ltd. Enterprise Drive, Holmewood, Chesterfield S42 5UZ, England Telephone (++44) 1246 501-501 • Fax (++44) 1246 501-500 gas pressure regulators, safety devices, electronic control systems

Bryan Donkin RMG Canada Ltd. 50 Clarke Street South, Woodstock, Ontario N4S 7Y5, Canada Telephone (++1) 519 5398531 • Fax (++1) 519 5373339 domestic regulators and safety devices

companies of the RMG Group RMG Messtechnik GmbH Otto-Hahn-Strasse 5, D-35510 Butzbach, Germany Telephone (++49) 6033 897-0 • Fax (++49) 6033 897-130 turbine meters, vortex meters, correctors, flow computers, odorizers

Karl Wieser GmbH Anzinger Strasse 14, D-85560 Ebersberg, Germany Telephone (++49) 8092 2097-0 • Fax (++49) 8092 2097-10

works Beindersheim Heinrich-Lanz-Strasse 9, D-67259 Beindersheim/Pfalz, Germany Telephone (++49) 6233) 3762-0 • Fax (++49) 6233 3762-40 data logging, monitor systems, danger alarm systems

WÄGA Wärme-Gastechnik GmbH Osterholzstrasse 45, D-34123 Kassel, Germany Telephone (++49) 561 5007-0 • Fax (++49) 561 5007-207 design and assembly of gas pressure regulating and metering stations

Die RMG Group of Companies on the internet: http://www.rmg.de

Your competent partner

serving the gas industry - WORLDWIDE

We reserve the right for technical changes