MEDENUS SL 10 Operating And Maintenance Instructions Manual
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MEDENUS SL 10 Operating And Maintenance Instructions Manual

Safety relief valve
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Safety Relief Valve
SL 10
Operating and Maintenance Instructions
© 05.2022

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Summary of Contents for MEDENUS SL 10

  • Page 1 Safety Relief Valve SL 10 Operating and Maintenance Instructions © 05.2022...
  • Page 2 Reprint prohibited! Subject to technical modifications!
  • Page 3 Design of the safety relief valve SL10 Adjusting screw Main diaphragm Internal Actuator measurement port Connection of breather line Diaphragm plate Valve plate Spindle Actuator housing...

  • 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 5 12 Accessories / Options 12.1 Leakage Gas Quantity Display Type LI-1 Type LI-2 Pin assignment Type LI-1 angled type Type LI-2 straight type 12.2 BV breather valve 12.2 HD-2 version Notes 13 Declaration of Conformity...

  • 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 Safety relief valve (SRV), direct-acting (operating without auxiliary power), for systems acc. to DVGW work sheets G 491 (A) and G 600 (A) (TRGI) Can be used as an equipment component on gas consumption facilities as defined in Regulation (EU) 2016/426. Can be used for the gases defined in DVGW work sheets G 260 / G 262 and neutral non-aggressive gases.

  • 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 7.04 7.13 7.11 7.12 7.09 7.10 7.04 Measuring 7.05 point 7.01 7.02 7.03 Filter DF100 Measuring point Fig. 7.1 7.08 7.28 7.07 7.06 Connection Ø Anschluss Regler Anschluss Regler Öffnungsdurchmesser / Abmessung / dimension (mm) /connection connection Regulator Nennweite /nominal size Regulator opening diameter (mm)

  • 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

    Initial commissioning of the system components shall be carried out by the operator. For commissioning, please refer to the documents listed under item 1 “General Information” and the system operator's work instruction. The devices delivered by MEDENUS Gas-Druckregeltechnik GmbH are factory-set to the operating data specified by the customer. This data is listed on the Acceptance Test Certificate (ATC)* and the type plate.

  • 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 Safety Relief Valve 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 SRV vents during Valve plate has become disconnected Tighten nut under the valve plate operation...

  • 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 20: Spare Parts Drawing Sl10

    11.2 Spare Parts Drawing SL10 SL10 shown with high-pressure spindle HD2 © 05.2022...

  • Page 21: Notes

    Notes ................

  • Page 22: Accessories / Options

    12 Accessories / Options 12.1 Leakage Gas Quantity Display 12.1.1 Use The leakage gas quantity display is used for monitoring the reaction of the safety relief valve SRV. 12.1.2 Application / Function The flow body connected to a magnet is lifted as soon as the SRV is triggered. Afterwards the black pointer is moved from the green into the red area by means of a magnetic coupling.

  • Page 23: Type

    Type LI-1 Outlet Inlet Type LI-2 Outlet Inlet Pin assignment white black Pin assignment corresponds to DIN 41524 © 05.2022...

  • Page 24: Type Li-1 Angled Type

    12.10.4 Application example Type LI-1 angled type Leakage gas quantity display LI-1 Safety relief valve SL 10 Type LI-2 straight type Leakage gas quantity display LI-2 Safety relief valve SL 10 © 05.2022...

  • Page 25: Bv Breather Valve

    12.2 BV breather valve 12.2.1 Use • On SAV control devices • On regulators (pilots) • On the SRV (SL10) 12.2.2 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 26: Version

    12.2 HD-2 version 12.2.1 Use • Gas pressure regulators R51 • On the SRV (SL10) 12.2.2 Application / Function The HD-2 high-pressure spindle is used for simplified adjustment of the control spring in the safety relief valve SRV. For the adjustment of particularly strong control springs, the use of a high-pressure spindle is mandatory.

  • Page 27: Notes

    Notes ................
  • Page 28 Notes ................
  • Page 29 Notes ................

  • Page 30: Declaration Of Conformity

    © 05.2022...
  • Page 31 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. German: http://medenus.de/files/upload/ downloads/SL10/BWA_SL10_de.pdf © 05.2022...
  • Page 32 MEDENUS Gas-Druckregeltechnik GmbH Phone +49 (0)2761 82788-0 +49 (0)2761 82788-9 Im Langen Feld 3 / D-57462 Olpe info@medenus.de www.medenus.de...

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