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Pilot series RMG 650

General Description

650.01 Edition 11/2001

Serving the Gas Industry - WORLDWIDE

Pilot series RMG 650 1. Technical data max. inlet pressure pemax spring ranges Wh for all versions

100 bar

Wh in bar 0.3 0.5 1 2 5 10 20

... ... ... ... ... ... ...

spring no.

1 2 5 10 20 40 90

0 1 2 3 4 5 6

4.5 5.0 5.6 6.3 7.0 8.0 9.0

mm * mm mm mm mm mm mm (with metal harmonica type measuring unit)

outlet pressure range in bar 0.5 to 2 1 to 5 2 to 10 5 to 20 10 to 40

spring no.

1 2 3 4 5

without pulse control in bar/min 1.3 2.1 3.1 7.2 13.9

20 to 90

6

13.9

outlet pressure range Wh for differential pressure stage RMG 659, RMG 655, RMG 658So

Wh in bar 0.05 ... 1.2

spring no.

-

load limiting unit

1 ... 10 bar above pa

outlet pressure range Wh for electric control RMG 651, RMG 656

with pulse control in bar/min 0.020 to 1.0 0.040 to 1.7 0.050 to 2.5 0.120 to 5.7 0.220 to 11.0 0.220 to 11.0

wire diameter 2.25 mm

accuracy class and closing pressure categories

accuracy class ≥ AC 1

closing range

SZ 2,5

materials

body integral parts diaphragms sealings

temperature range class 2

-20°C ... +60°C

function and strength

according to EN 334

DIN-DVGW registration

see regulators RMG 200, RMG 322, RMG 332,RMG 408, RMG 409 RMG 505 and RMG 512 according to EN 334 the pilot is part of these regulators.

*) larger measuring diaphragm, not for pilots RMG 652, RMG 655, RMG 658

2

wire diameter

closing pressure category ≥ SG 5

aluminium alloy aluminium alloy / steel rubber-like plastic material (NBR) rubber-like plastic material (NBR)

Pilot range RMG 650 2. Pilot RMG 650 pneumatic pilot • for outlet pressure control • suitable for natural gas and all non-corrosive gaseous media • two-stage pilot with load limiting stage and control stage as interchangeable cartridge assemblies • provided with inlet and load limiting pressure gauges and filter RMG 905 approved by DIN-DVGW in combination with RMG main valves, the pilot is part of the complete device according to EN 334 max. inlet pressure pe max 100 bar outlet pressure range Wh 0.3 bar to 90 bar

load limiting stage

control stage

measuring line discharge throttle

loading pressure line fine filter

inlet pressure line vent line setpoint spring setpoint adjuster discharge line

3

Pilot RMG 650 So 3. Pilot RMG 650 So pneumatic pilot • for outlet pressure control • suitable for natural gas and all non-corrosive gaseous media • one-stage pilot for inlet pressure changes up to 15 bar

approved by DIN-DVGW in combination with RMG main valves, the pilot is part of the complete device according to EN 334 max. inlet pressure pe max 100 bar outlet pressure range Wh 0.3 bar to 90 bar

control stage measuring line discharge throttle loading pressure line discharge line fine filter

vent line setpoint spring setpoint adjuster inlet pressure line

4

return line

Pilot RMG 651, RMG 656 4. Pilots RMG 651, 656 pneumatic pilot with electric motor for setpoint adjustment • for outlet pressure control • pilot with electric setpoint adjuster for lines with changing operational conditions • for remote setpoint adjustment through central control stations • manual setpoint adjustment is possible at the electric motor • suitable for natural gas and all non-corrosive gaseous media RMG 651: pilot RMG 650 combined with electric motor and gearbox connected to the outlet pressure stage acc. to DIN/ISO 5210 T1 F10 max. inlet pressure pe max 100 bar outlet pressure range Wh 0.5 bar to 90 bar RMG 656: pilot RMG 655 combined with electric motor and gearbox connected to the outlet pressure stage acc. to DIN/ISO 5210 T1 F10 max. inlet pressure pe max 100 bar outlet pressure range Wh 0.5 bar to 90 bar During outlet pressure rises the flowrate is limited to a maximal value due to the inte-grated differential pressure stage.

Details about motors and electrical connections upon request. load limiting stage

control stage discharge throttle

fine filter vent line setpoint spring electric motor

inlet pressure line setpoint adjuster

measuring line

loading pressure line

discharge line

5

Pilot RMG 652 5. Pilot RMG 652 pneumatic pilot

• for inlet pressure control • suitable for natural gas and all non-corrosive gaseous media • two-stage pilot with load limiting stage and control stage as interchangeable cartridge assemblies • provided with inlet and load limiting pressure gauges and filter RMG 905 approved by DIN-DVGW in combination with RMG main valves, the pilot is part of the complete device according to EN 334 max. inlet pressure pe max 100 bar outlet pressure range Wh 0.5 bar to 90 bar

load limiting stage

control stage

measuring line discharge throttle

loading pressure line

fine filter

inlet pressure line

vent line setpoint spring setpoint adjuster discharge line

6

Pilot RMG 655 6. Pilot RMG 655 pneumatic pilot • for outlet and differential pressure control (flow rate) • suitable for natural gas and all non-corrosive gaseous media • flowrate control by measuring signal as a special feature • three-stage pilot with load limiting stage, control stage and differential pressure control stage as interchangeable cartridge assemblies • provided with inlet and load limiting pressure gauges and filter RMG 905 approved by DIN-DVGW in combination with RMG main valves, the pilot is part of the complete device according to EN 334 max. inlet pressure pe max 100 bar outlet pressure range Wh outlet pressure 0.5 bar to 90 bar differential pressure 0.050 bar to 1.2 bar

load limiting stage

control stage

differential pressure control stage measuring line discharge throttle

loading pressure line

fine filter inlet pressure line

vent line differential pressure lines setpoint spring setpoint adjuster discharge line

+

-

7

Pilot RMG 658 7. Pilot RMG 658 electro-pneumatic pilot The pilot RMG 658 consists of functional elements which are combined onto a main base plate: 1st stage automatic load limiting stage 2nd stage control stage for the minimal outlet pressure pa min 3rd stage control stage for the maximal outlet pressure pa max 4th stage electro-pneumatic control stage for conversion of electric signals into pneumatic signals The pneumatic pressure stages automatically check the given minimal and maximal values of the outlet pressure. If those max. values are reached during operation, the relevant stages take over control and hold the pressure constant within the given limits.

The switching between the electronic control (operated by the electro-pneumatic control stage) and the outlet pressure restriction through the pneumatic control stages runs independantly and smoothly in both directions without any noticeable transition effects.

Following tasks are possible between the min. and max. pressure limits: • setpoint adjustment - for a quick adapation of the setpoint to often changing operational conditions - for combining the regulator into a process control system • flow regulation - for gas storage in tube networks and tanks (optimization) - for meter protection • pressure regulation - combined with meter protection through flow limitation to qB max - with timer for daily/weekly programme for pressure control - to reach a better control accuracy and control stability through an electronic PI-regulation approved by DIN-DVGW in combination with RMG main valves, the pilot is part of the complete device according to EN 334 control stage pamax load limiting stage

control stage pamin

measuring line el.-pneumatic control stage

discharge throttle fine filter vent line inlet pressure line loading pressure line setpoint spring setpoint adjuster discharge line

8

Pilot RMG 658 So 8. Pilot RMG 658 So pneumatic pilot The pilot RMG 658 So consists of functional elements which are combined onto a main base plate: 1st stage automatic load limiting stage 2nd stage control stage for the minimal outlet pressure pa min 3rd stage control stage for the maximal outlet pressure pa max 4th stage differential pressure stage max. inlet pressure pe max 100 bar oulet pressure ranges Wh outlet pressure 0.5 bar to 90 bar differential pressure 0.050 bar to 1.2 bar approved by DIN-DVGW in combination with RMG main valves, the pilot is part of the complete device according to EN 334

load limiting stage

control stage pamax control stage pamin

differential pressure control stage

measuring line discharge throttle

loading pressure line

fine filter inlet pressure line

vent line differential pressure lines setpoint spring setpoint adjuster discharge line

+

-

9

Pilot series RMG 650 9. Example of RMG 512 monitor/active override configuration

pilot RMG 650/650 monitor regulator measuring line 1 safety shut-off valve measuring line pilot RMG 650 active regulator measuring line

fine filter RMG 905

bleed line

active regulator bleed line

inlet pressure line fine filter RMG 905

active regulator return line

monitor regulator return line actuator K 16

safety shut-off valve RMG 711

10

monitor regulator loading pressure line

gas pressure regulator RMG 512

active regulator loading pressure line

monitor regulator measuring line 2

gas pressure regulator RMG 512

Pilot series RMG 650

11

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 regulating equipment, below ground gas control modules

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

The other RMG Companies: 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

Betriebsstelle 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

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

Serving the Gas Industry - WORLDWIDE

We reserve the right for technical changes