MEDENUS R 70-10 Operating And Maintenance Instructions Manual

Gas pressure regulator

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Gas pressure regulator

RSP 254 / RSP 255

Regulator

R 70-10 / R 70-20 / R 70-100

Actuator

AS 254 / AS 255

Operating and Maintenance Instructions

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Summary of Contents for MEDENUS R 70-10

Page 1 Gas pressure regulator RSP 254 / RSP 255 Regulator R 70-10 / R 70-20 / R 70-100 Actuator AS 254 / AS 255 Operating and Maintenance Instructions © 02.2019...
Page 2 Connections R70 / K70 Connection R70-10 R70-20 R70-100 K70-10 Inlet pressure line Inlet pressure line Inlet pressure line Setting pressure line Setting pressure line Setting pressure line Bypass line Bypass line Bypass line Measurement line Measurement line Breather line Breather line Breather line Breather line Measurement line...
Page 3 Gas pressure regulator RSP 254 with integrated SSV direct-acting Breather line Regulator R 70-100 100 cm measuring movement Double-diaphragm system Inlet pressure line Bypass setting device Closing spring Setpoint Setpoint spring setting device Actuator AS 254 Setting pressure line Actuator diaphragm Equalization diaphragm...
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 Type of model (option) 3 Reasonably be foreseeable wrong use 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 Noise reduction 12.2 Breathing valve BV 12.3 Throttle valve RSD 12.4 Signal transmitter / reed contact 12.5 Inductive signal transmitter 12.6.SSV remote triggering 12.7 Fine filter FF 13 Tools 13.1 Tightening tool SSV Notes Declaration of conformity Contact...
Page 6: General Information
The figures in these instructions are provided for basic understanding and may differ from the actual design. The contents in 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 the 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 may result in light injuries, damage to the device, the breakdown NOTICE of the system, and material or environmental damage if not avoided.
Page 8: Application, Characteristics
2 Application, Characteristics 2.1 Application Gas pressure regulator (GDR), indirect-acting (operating with auxiliary power), for systems acc. to DVGW - work sheet G 491 (A) and G 600 (A) (TRGI) Can be used as an equipment component on gas consumption facilities as defined in EC Directive EU/2016/426 (GAR) Can be used for the gases defined in DVGW - work sheet 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 within 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 is delivered with flange protective caps. They must be removed prior to installation. Note Make sure that the device is transported horizontally using suitable lifting gear. The device must be handled carefully and secured against impact and shock. In case of transport damage, we will require the following information from the type plate affixed to the device: •...
Page 12: Mounting And Commissioning
7 Mounting and Commissioning 7.1 Safety Instructions and Preparation Prior to starting work on pressurised components: DANGER • Close all connections to the gas line. • Depressurise all pressurised components. Also discharge residual energies. • Defective components that are subject to pressure in operation must be replaced immediately by a suitable qualified person.
Page 13: Mounting
DVGW GAS information issue no. 19 (Flanged Connections in Gas Installation. • In all installation positions other than horizontal, Note MEDENUS Gas-Druckregeltechnik GmbH must be consulted. 7.32 7.04 I / P converter Detail p.16 7.31 7.33...
Page 14: Leakage Test (Test For External Leakage)
5.3 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 • For the functional test of the GPR, let gas flow via the discharge line venting to the outside atmosphere and read the set regulating pressure on the outlet pressure gauge (item 7.12). • After closing a constant closing pressure within the closing pressure class can be read on the outlet pressure gauge (item 7.12).
Page 17 7.5 SSV setpoint spring table - Control device direct-acting Upper response pressure Lower response pressure Spring data Type (GMB 135) Spring no. Colour [RAL] [mbar] [mbar] [mbar] [mbar] 2 - 8 FE 900 1028 8 - 18 FE 901 2002 18 - 30 FE 902 6010...
Page 18 7.6 SSV setpoint spring table - Control device direct-acting Upper response pressure Lower response pressure Spring data Type (GMB 146) Spring no. Colour [RAL] [mbar] [mbar] [mbar] [mbar] 10 - 40 FM 400 1028 large 35 - 115 FM 402 6010 ball lock 60 - 245...
Page 19: Decommissioning
7.8 Decommissioning For decommissioning, please refer to the documents listed under item 1 „General Information“ and the system operator‘s work instruction. Procedure (fig. 7.1) • Slowly close the outlet shut-off valve (item 7.13) and • Close the ball valves upstream of the valves and fittings (item 7.01). Note • Depressurise the system (item 7.11). (Always Depressurise via the outlet side P ≥...
Page 20: 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. NOTICE If components have been removed, make sure they are mounted correctly, reinstall all fastening elements and observe the screw tightening torques.
Page 21: Table Of Screw Tightening Torques M
DN 200 M12 / 62 Nm M6 / 8 Nm M8 / 18 Nm fig. 8.1 Gas pressure regulator / control unit Item no. R 70-10 R 70-20 R 70-100 K 70-10 M6 / 8Nm M4 / 2Nm M6 / 8Nm RP 1/4“...
Page 22: 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 Closing pressure too Clamping of the compensating high diaphragm has come off...
Page 23: Safety Shut-Off Valve
9.2 Safety Shut-Off Valve Fastening of the main diaphragm has come off Check diaphragm for fastening, damage and correct Main diaphragm is damaged or has Gas escapes through been mounted incorrectly breather line Correct settings of leakage gas SRV Internal leakage gas SRV is set too low Check O-ring for damage and dirt, replace if or is not tight necessary...
Page 24: Replacement And Disposal
10 Replacement and Disposal After the device has reached the end of its useful life, it must be dismounted and disposed of in an environmentally compatible manner. During dismounting, components that may present a risk of injury by contamination NOTICE depending on the medium are removed.
Page 25: Spare Parts
11 Spare Parts 11.1 Spare Parts Drawing RS 250 / RS 251 DN 25 - DN200 Caution: Cover is under spring tension! *) 1x O-ring at RE 160 / 205 / 275 / 385 **) 4x O-ring at RE 320 / 390 8x O-ring at RE 485 fig. 11.1 © 02.2019...
Page 26: Spare Parts Drawing Fine Filter Ff
11.2 Spare part drawing option fine filter FF 11.3 Spare part drawing K-70 11.4 Spare parts drawing R 70-10 / R 70-20 / R 70-100 K 70-10 R 70-10 © 02.2019...
Page 28: Parts For Maintenance Actuator
11.5 Parts for Maintenance Actuator Main diaphragm and O-ring Item Name Quantity AS 254 / 025 AS 254 / 080; AS 254 / 100; AS 255 / 050 pcs. AS 254 / 050 AS 255 / 080; AS 254 / 150; AS 255 / 100; AS 254 / 200 RE 385 / 390 RE 320...
Page 29 Valve Plate SSV / Diaphragm SSV Item Name Number Exception AS 254 / 025 AS 254 / 080 AS 255 / 080 AS 254 / 150 AS 254 / AS 254 / 050 AS 254 / 100 AS 255 / 100 AS 255 / 050 Valve plate VT-201...
Page 30: Parts For Maintenance Regulator / Control Unit
11.6 Parts for maintenance regulator / control unit Main diaphragm Item Name Quantity R 70-10 R 70-20 R 70-100 pcs. K 70-10 M-204 M-204 M-204 M-205 Diaphragm M-201 O-Ring Set Valve plate Item Name Quantity R 70-10 R 70-20 Item...
Page 31 Gas pressure AS254 27,5 MD-R regulator: Spare parts according to tables in 11.5 Spare parts according to tables in 11.6 Example.: Stellglied AS254/080/390/27,5 Example.: Regler R 70-10 MS-162 M-204 (2 Stk.) Main diaphragm and O-ring: Diaphragm M-003 VT-301 Intermediate diaphragm:...
Page 32 Notes ................
Page 33: Accessories / Options
12 Accessories / Options 12.1 Noise reduction 12.1.1 Use • Gas pressure regulators RS 250 / RS 251 • Gas pressure regulators RS 254 / RS 255 • Gas pressure regulators RSP 254 / RSP 255 • Gas pressure regulators R 101 12.1.2 Application / Function The noise reduction made of metallic foam is inserted into the housing of the gas pressure regulator between the valve seat and the housing cover and reduces noise in...
Page 34 12.1.4 Determination of the sound pressure level L The noise of gas expansion at a maximum flow rate of approx. 65 m/s on the outlet side is shown. 128000 96000 64000 48000 32000 24000 16000 12000 8000 6000 4000 3000 2000 1500 1000...
Page 35: Breathing Valve Bv
12.2 BV breather valve 12.2.1 Use • On SAV control devices • On regulators (pilots) • With low-dynamic regulation sections (one full stroke) • 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 gas escape from diaphragm comparator compartments of gas pressure regulators and safety shut-off valves.
Page 36: Throttle Valve Rsd
12.3 RSD restrictor valve 12.3.1 Use • For installation in the measurement line of the gas pressure regulator 12.3.2 Application / Function • For finer adjustment of the control behaviour of the regulator • For vibration-free outlet pressure regulation The RSD is a restrictor valve that affects the volumetric flow in the measurement line from outside by means of a continuously adjustable narrowing of the cross-section.
Page 37: Signal Transmitter/ Reed Contact
• On SAV control devices 12.4.2 Application / Function The signal transmitter, in conjunction with products from Medenus GmbH, is used for monitoring the position (position closed or open) of the safety shut-off valve via remote display. A built-in neodymium magnet in the pull knob of the SSV and a set switching distance to the Reed contact cause a sensor to query the position of the safety shut-off valve and to transmit a signal via remote display.
Page 38 12.4.4 Mounting • Replace the pull knob of the SSV spindle with the pull knob with the neodymium magnet. • With the SSV open, slide the signal transmitter into the groove provided for this purpose at the SSV cap. (Until the operational status indicator is lit) • Finally fasten the signal transmitter to the desired position by tightening* the fastening screw M2.5 x 4 using a precision screwdriver.
Page 39 Safety instructions Must be read prior to using the neodymium magnet! Important safety instructions for general and responsible handling of the neodymium magnet Please pass on these instructions to all employees, customers and other people who are handling our products or parts derived from them.
Page 40: Inductive Signal Transmitter
12.5.1 Use • On SAV control devices 12.5.2 Application / Function The inductive transmitter, in conjunction with products from Medenus GmbH, is used for monitoring the position (position closed or open) of the safety shut-off valve via remote display. A sensor queries the position of the safety shut-off valve and a signal is transmitted via remote display. If the SSV drops into the closed position, the switching distance will be exceeded and the sensor will lose the signal.
Page 41 2/BU M12x1 12.5.5 Mounting • Unscrew the SSV cap of your Medenus gas pressure regulator (-) and replace it with the SSV cap with M12 threaded hole for the inductive transmitter and the pull knob, if necessary. (During mounting, make sure that the O-ring has been...
Page 42: Ssv Remote Triggering
12.6. SSV remote release 12.6.1 Use • On SAV control devices 12.6.2 Application / Function The direct-acting solenoid valve is used as electromagnetic remote release for closing the safety shut-off valve. Only for SSV control devices of functional class A. Upon being energized or in case of power failure, the valve closes the impulse line, resulting in the pressure falling below the response pressure to be monitored.
Page 44: Fine Filter Ff
12.7 Fine filter FF 12.7.1 Use • for control device R70 12.7.2 Application / Function Fine filter FF have the task to separate gas impurities such as dust, rust and other solids in gas pipes to specified location. They are used in the inlet pressure line between actuator RSP and controller R70. Fine filters FF can be used for gases according to DVGW - worksheet G 260 / G 262 and neutral non-aggressive gases.
Page 46: Tools
13 tools 13.1 SSV tightening tool The tightening tool made of stainless steel is used for replacing the SSV diaphragm in your MEDENUS safety shut-off valve. • Width across flats 22 • Stainless steel 42CrMo4 Notes ................
Page 47 Notes ................
Page 48 Notes ................
Page 49 Notes ................
Page 50: Declaration Of Conformity
Declaration of Conformity (Summary) Manufacturer: Medenus Gas-Druckregeltechnik GmbH Address: Saßmicker Hammer 40 D-57462 Olpe-Saßmicke herewith declares that the products: R 254 / RS 254 / RP 254 / RSP 254 R 255 / RS 255 / RP 255 / RSP 255...
Page 51 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 the corresponding documents. Deutsch: Englisch: http://medenus.de/files/upload/ http://medenus.de/files/upload/ downloads/RSP254/ downloads/RSP254/ BWA_RSP254_255_de.pdf BWA_RS254_255_en.pdf © 02.2019...
Page 52 MEDENUS Gas-Druckregeltechnik GmbH Fon +49 (0)2761 82788-0 Fax +49 (0)2761 82788-9 Saßmicker Hammer 40 / D-57462 Olpe info@medenus.de www.medenus.de...

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Rsp 255 Rsp 254 R 70-20 R 70-100 As 254 As 255

MEDENUS R 70-10 Operating And Maintenance Instructions Manual

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