MEDENUS R 50 Operating And Maintenance Instructions Manual

Gas pressure regulator

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Gas Pressure Regulator

R 50

Operating and Maintenance Instructions

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Page 2 Subject to technical modifications! Reprint prohibited!
Page 3 Design of the gas pressure regulator R50 Adjusting screw Diaphragm assembly Main diaphragm Internal measurement port Actuator housing Spindle...
Page 4: Table Of Contents
Table of contents 1 General Information 1.1 Warranty and Liability 1.2 Symbols, Notes 1.3 Terms, Abbreviations 2 Application, Characteristics 2.1 Application 2.2 Characteristics 2.3 Types of Models (Options) 3 Avoidance of Foreseeable Misuse 4 Safety Instructions 4.1 Hazards of Handling the Device 4.2 Personnel Requirements 4.3 Country-Specific Requirements 4.4 Handover of the Operating and Maintenance Instructions...
Page 6: General Information
The figures in these instructions are provided for basic understanding and may differ from the actual design. The contents of these instructions are protected by copyright. They may be used as part of operating the device. Any other use and/or reproduction is not permitted without prior authorization by MEDENUS Gas- Druckregeltechnik GmbH.
Page 7: Symbols, Notes
1.2 Symbols, Notes The instructions contain safety instructions marked with symbols to indicate possible consequences in case of non- observance: This combination of symbol and signal word indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, damage ATTENTION to the device, the breakdown of the system, and material or environmental damage.
Page 8: Application, Characteristics
2 Application, Characteristics 2.1 Application Gas pressure regulator (GDR), direct-acting (operating without auxiliary power), for systems acc. to DVGW work sheets G 491 (A) and G 600 (A) (TRGI) Particularly suitable for dynamic regulation sections (e.g. natural gas supply systems, low flow regulators, burner circuits, gas motor operation) Can be used as an equipment component on gas consumption facilities as defined in Regulation (EU) 2016/426.
Page 9: Safety Instructions
Using the device under different operating conditions must be agreed upon in consultation with MEDENUS Gas-Druckregeltechnik GmbH. The mechanical components of the device do not have any potential ignition sources of their own nor any hot surfaces and are thus not covered by the scope of 2014/34/EU (ATEX).
Page 10: Safety In Operation
(alarm and hazard prevention plan). In particular, the following applies: • The operator is obliged to perform work on MEDENUS devices during the warranty period only © after consultation with the manufacturer. Otherwise the claims under warranty will become void.
Page 11: Transport, Storage And Packaging
6 Transport, Storage and Packaging 6.1 Transport The device must be handled carefully and secured against impacts and knocks. Note In case of transport damage, we will require the following information from the nameplate affixed to the device: • Device type •...
Page 12: Mounting And Commissioning
7 Mounting and Commissioning 7.1 Safety Instructions and Preparation Prior to starting work on pressurized components: DANGER • Close all connections to the gas line. • Depressurize all pressurized components. Also discharge residual energies. • Defective components charged with pressure in operation must be replaced immediately by an appropriate expert.
Page 13 Installation example 7.04 7.09 Range for 7.12 measuring points* 7.10 7.14 (approx. 3x DN P 7.02 7.13 Outlet 7.01 Inlet 7.11 Connection Anschluss Regler Anschluss Regler Öffnungsdurchmesser / /connection connection Regulator Nennweite /nominal Abmessung / size dimension (mm) Regulator opening diameter (mm) Anschluss / Atmungsleitung / Atmungsleitung /...
Page 14: Leakage Test (Test For External Leakage)
7.3 Leakage Test (Test for External Leakage) The devices are subjected to a strength and leakage test ex works at MEDENUS Gas-Druckregeltechnik GmbH. The leakage test in the fully assembled system must be performed prior to commissioning and following maintenance work.
Page 15: Initial Commissioning / Recommissioning
7.5 Setpoint spring Note The setpoint spring ranges for the gas pressure regulator R 50 depend on the initial pressure. For more detailed information, please contact the company MEDENUS Gas-Druckregeltechnik GmbH. The contact data are given under item 10.
Page 16: Decommissioning
7.6 Decommissioning For decommissioning, please refer to the documents listed under item 1 “General Information” and the system operator's work instruction. Procedure • Slowly close the outlet shut-off valve (item 7.13) or • Slowly lower the outlet pressure via the setpoint setting screw until the reserve rail takes over the gas supply •...
Page 17: Maintenance Procedure
8.2 Maintenance Procedure The maintenance procedure is described in detail step-by-step in our video tutorial and our pictorial descriptions. Instructions for our products can be found in the download area of our website. Should you have any problems, please feel free to contact us directly. ATTENTION If components have been removed, make sure they are mounted correctly, reinstall all fastening elements and observe the screw tightening torques.
Page 18: Troubleshooting
9 Troubleshooting 9.1 Gas Pressure Regulator Description of the error Possible cause Elimination Check valve plate (seal) and valve seat for damage Actuator dirty or damaged and dirt, replace valve plate, if necessary Static sealing elements defective Replace O-rings Clamping of the compensating Closing pressure too diaphragm has come off Check compensating diaphragm for fastening,...
Page 19: Replacement And Disposal
Metals should be scrapped • The remaining components should be disposed of after sorting according to material. For technical information, please contact our customer service: MEDENUS Gas-Druckregeltechnik GmbH Phone +49 (0) 2761 / 82788-0 E-mail service@medenus.de Im Langen Feld 3 Fax +49 (0) 2761 / 82788-9 Internet www.medenus.de...
Page 21 12 Accessories / Options 12.1 BV breather valve 12.1.1 Use • On SSV control devices • On regulators (pilots) • With low-dynamic regulation sections (one full stroke) • On the SRV (SL10) • On the gas pressure regulator R50 12.1.2 Application / Function The breather valve is used as replacement for the costly and time-consuming laying of breather lines and for securing the installation room against inadmissible escape of gas from diaphragm comparator compartments of gas pressure regulators and safety shut-off valves.
Page 23 In the download area of our homepage, this document is available in different languages. You can use the following QR codes and links to go directly to this document in your language. Deutsch: http://medenus.de/files/upload/ downloads/R50/BWA_R50_de.pdf Notes ................
Page 24 MEDENUS Gas-Druckregeltechnik GmbH Phone +49 (0)2761 82788-0 Fax +49 (0)2761 82788-9 Im Langen Feld 3 / D-57462 Olpe info@medenus.de www.medenus.de...

MEDENUS R 50 Operating And Maintenance Instructions Manual

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