Samson 44-7 Mounting And Operating Instructions
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Samson 44-7 Mounting And Operating Instructions

Self-operated pressure regulators excess pressure valve
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EB 2723 EN
Translation of original instructions
Type 44-7 Excess Pressure Valve
Red brass body with screwed ends
Type 44-7 Excess Pressure Valve
Type 44-4 and Type 44-8 Safety Excess Pressure Valves (SEV)
Self-operated Pressure Regulators
Edition March 2019

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Summary of Contents for Samson 44-7

  • Page 1 EB 2723 EN Translation of original instructions Type 44-7 Excess Pressure Valve Red brass body with screwed ends Type 44-7 Excess Pressure Valve Type 44-4 and Type 44-8 Safety Excess Pressure Valves (SEV) Self-operated Pressure Regulators Edition March 2019...
  • Page 2 Î For the safe and proper use of these instructions, read them carefully and keep them for later reference. Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service Department (aftersalesservice@samson.de). The mounting and operating instructions for the devices are included in the scope of delivery.

  • Page 3: Table Of Contents

    Contents Safety instructions and measures ..............5 Notes on possible severe personal injury ............7 Notes on possible personal injury ..............8 Notes on possible property damage ..............9 Markings on the device ................10 Regulator nameplate ..................10 Material number ..................11 Warnings ....................11 Design and principle of operation ..............12 Technical data .....................14 Measures for preparation ................18 Unpacking ....................18...
  • Page 4 Contents Decommissioning and removal ..............33 Decommissioning ..................33 Disposal ......................33 Appendix ....................34 10.1 After-sales service ..................34 10.2 Spare parts ....................34 10.3 Certificates ....................37 EB 2723 EN...

  • Page 5: Safety Instructions And Measures

    SAMSON. SAMSON does not assume any liability for damage resulting from the failure to use the de- vice for its intended purpose or for damage caused by external forces or any other external factors.
  • Page 6 Î Check with the plant operator for details on further protective equipment. Revisions and other modifications Revisions, conversions or other modifications of the product are not authorized by SAMSON. They are performed at the user's own risk and may lead to safety hazards, for example.

  • Page 7: Notes On Possible Severe Personal Injury

    Safety instructions and measures Referenced standards and regulations The regulators comply with the requirements of the European Pressure Equipment Directive 2014/68/EU. Regulators with a CE marking have an EU declaration of conformity, which includes information about the applied conformity assessment procedure. This EU declaration of conformity is included in the Appendix of these instructions (see section 10.3).

  • Page 8: Notes On Possible Personal Injury

    Î Wear protective clothing and safety gloves. Damage to health relating to the REACH regulation. If a SAMSON device contains a substance which is listed as being a substance of very high concern on the candidate list of the REACH regulation, this circumstance is indicat- ed on the SAMSON delivery note.

  • Page 9: Notes On Possible Property Damage

    Risk of regulator damage due to the use of unsuitable tools. Certain tools are required to work on the regulator. Î Only use tools approved by SAMSON. Note SAMSON's After-sales Service department can support you concerning lubricant, tight- ening torques and tools approved by SAMSON. EB 2723 EN...

  • Page 10: Markings On The Device

    Markings on the device 2 Markings on the device 2.1 Regulator nameplate 1 Model number 2 Configuration ID (Var.-ID) and device index 3 Order number or year of manufacture 4 Type designation 5 Pressure rating PN coefficient 7 Perm. temperature in °C 8 Set point range in bar 9 Max.

  • Page 11: Material Number

    Markings on the device 2.2 Material number 2.3 Warnings Specifying the configuration ID, you can con- The red adhesive labels indicate hazards tact us to find out which material is used. The that may arise while working on the regula- configuration ID is specified on the name- tor.

  • Page 12: Design And Principle Of Operation

    (6.2). Upon failure of the first oper- ating diaphragm (6.1) the regulator is fully The Type 44-4, Type 44-7 and Type 44-8 opened. Diaphragm failure is indicated by a Excess Pressure Valves mainly consist of the...
  • Page 13 Turned into the plane of projection Type 44-8 (DN 32 to 50), DN 15 to 25, plug section flanged valve body Fig. 3: Functional diagram of Type 44-7 Excess Pressure Valve as well as Types 44-4 and 44-8 Safety Excess Pressure Valves (SEV) EB 2723 EN...

  • Page 14: Technical Data

    Noise emission pressure upstream of the regulator to the ad- justed set point especially in district heating SAMSON is unable to make general state- systems and extended heating systems. ments about noise emission as it depends on Type 44-4, Type 44-7 and Type 44-8 are the regulator version, plant facilities, process suitable for controlling liquids and gases.
  • Page 15 Design and principle of operation Table 1: Technical data · All pressures in bar (gauge) Regulator Excess pressure valve 44-7 44-4 (SEV) · 44-8 (SEV) Red brass body Male thread DN 15, 20, 25, 32, 40 and 50 Connection Spheroidal graphite iron Flanges DN 32, 40 and 50...
  • Page 16 33.7 42.4 48.3 60.3 Connection R G ¾ G 1 G 1¼ G 1¾ G 2 G 2½ Width across flats SW Type 44-7 Height H Type 44-4  1) Type 44-8 Height H1 Actuator housing ØD Version with welding ends Length L1 Weight kg (approx.) Version with threaded ends...
  • Page 17 Version with welding ends Type 44-7 · Body: CC499K Type 44-4 · Type 44-8 · Body: CC499K R Ød Ød ØD ØD Version with flanged valve body Type 44-4, Type 44-7 and Type 44-8 Body: spheroidal graphite iron Version with threaded ends  1) Fig. 4: Dimensions DN 32, 40 and 50 EB 2723 EN...

  • Page 18: Measures For Preparation

    − Observe storage instructions. note. − Avoid long storage times. 2. Check the shipment for transportation − Contact SAMSON in case of different stor- damage. Report any damage to age conditions or long storage periods. SAMSON and the forwarding agent (refer to delivery note).

  • Page 19: Preparation For Installation

    Î Check the regulator to make sure it is clean. Î Check the regulator for damage. SAMSON's After-sales Service department Î Check to make sure that the type desig- can provide more detailed storage instruc- nation, valve size, material, pressure rat- tions on request.

  • Page 20: Mounting And Start-Up

    − Do not attach supports directly to the regu- lator. Shut-off valve Type 44-7 Excess Pressure Valve Upstream pressure gauge Strainer (Type 44-7 only) Excess pressure valve Downstream pressure gauge Fig. 5: Pressure control with Type 44-7 (installation example) EB 2723 EN...

  • Page 21: Additional Fittings

    (see Fig. 5). carried along by the medium. For example, the SAMSON Type 1 NI Strainer is suitable (u T 1010). The following points must be observed during installation of the strainer: −...

  • Page 22: Start-Up

    Operation 5.3 Start-up 6 Operation 6.1 Adjusting the set point DANGER Risk of personal injury due to process me- Î Refer to Fig. 3 dium escaping under pressure. Adjust the required set point by turning the − First start up the regulator after mounting set point adjuster (10) with an open-end all parts.

  • Page 23: Servicing

    Risk of regulator damage due to the use of While working on the regulator, residual unsuitable tools. process medium can escape and, depending Only use tools approved by SAMSON. on its properties, may lead to personal in- jury, e.g. (chemical) burns. EB 2723 EN...

  • Page 24: Cleaning And Replacing The Seat And Plug

    − Before starting any work on the springs, relieve the compression from the preloaded springs. Note − Only use the SAMSON disassembly tool The regulator was checked by SAMSON (1280-4052). before it left the factory. − Certain test results (seat leakage and leak...
  • Page 25 FW 506) for Types 44-4 and 1. Put the regulator out of operation (see 44-8 becoming void. section 9.1). Consult SAMSON's After-sales Service de- 2. Completely relieve the tension from the partment before you change parts or per- set point spring (8) by turning the set form service or repair work on TÜV-tested...

  • Page 26: Exchanging The Operating Diaphragm

    4. Place the plug (3) onto the plug stem and − Only use the SAMSON disassembly tool screw on the plug nut (3.2). Observe the (1280-4052). tightening torques specified in sec- tion 7.4.
  • Page 27 2. Completely relieve the tension from the specified in section 7.4. set point spring (8) by turning the set 6. Use the SAMSON disassembly tool to point adjuster (10) counterclockwise (). screw the valve body (1) together with 3. Remove the device from the pipeline spring plate (9) and the set point springs 4.

  • Page 28: Replacing The Set Point Springs

    (8) by turning the set springs. point adjuster (10) counterclockwise (). − Only use the SAMSON disassembly tool 3. Remove the device from the pipeline (1280-4052). 4. Unscrew the control line (11).

  • Page 29: Tightening Torques And Lubricant

    Servicing Note Change the nameplate and configuration ID after changing the set point range. 7.4 Tightening torques and lubricant Î Refer to Fig. 3 Component Valve size Tightening torque in Nm DN 15 to 25 Stopper (1.1) DN 32 to 50 DN 15 to 25 Seat (2) DN 32 to 50 DN 15 to 25...

  • Page 30: Preparation For Return Shipment

    Contact the SAMSON's After-sales Service department for more information on suitable Defective devices can be returned to tools. SAMSON for repair. Proceed as follows to return devices to SAMSON: 8 Malfunctions 1. Put the regulator out of operation (see The malfunctions listed in Table 5 are caused section 9.1).
  • Page 31 Malfunctions Table 5: Troubleshooting Malfunction Possible reasons Recommended action Insufficient pressure pulses on the Î Connect the control line on site for regulators operating diaphragm. with external control line. Î Clean the control line and screw fittings. Pressure tapped at the wrong place Î...
  • Page 32 Risk of TÜV approval (based on AGFW worksheet FW 506) for Types 44-4 and 44-8 be- coming void. Consult SAMSON's After-sales Service department before you change parts or perform ser- vice or repair work on TÜV-tested Type 44-4 and Type 44-8 Regulators. EB 2723 EN...

  • Page 33: Decommissioning And Removal

    Decommissioning and removal 9 Decommissioning and 9.1 Decommissioning removal To decommission the regulator for service and repair work or disassembly, proceed as follows: DANGER Risk of bursting in pressure equipment. 1. Close the shut-off valve on the upstream Regulators and pipelines are pressure equip- side of the regulator.

  • Page 34: Appendix

    Position numbers E-mail address Plug You can reach the After-sales Service De- Coupling nut partment at aftersalesservice@samson.de. Restriction assembly Addresses of SAMSON AG and its subsid- Stopper iaries Screw plug The addresses of SAMSON, its subsidiaries, Body representatives and service facilities world-...
  • Page 35 Appendix DN 15 to 25 70...78 EB 2723 EN...
  • Page 36 Appendix DN 32 to 50 Position numbers Plug Coupling nut Restriction assembly Stopper Screw plug Body Threaded seat Lock nut 70…78 Compression spring Diaphragm stem Diaphragm plate Spring plate Washer Diaphragm case assembly Pipe Diaphragm 70...78 Screw Axial needle bearing Screw fitting O-ring O-ring O-ring...

  • Page 37: Certificates

    Appendix 10.3 Certificates The EU declarations of conformity are in- cluded on the next pages. EB 2723 EN...
  • Page 38 Modul H/Module H, Nr./No. / N° CE-PED-H-SAM 001-13-DEU-rev-A SAMSON erklärt in alleiniger Verantwortung für folgende Produkte:/For the following products, SAMSON hereby declares under its sole responsibility: Ventile für Druck-, Differenzdruck-, Temperatur- und Volumenstromregler/Valves for pressure, temperature, flowregulators and differential pressure regulators Typ 2336, 2373, 2375, 44-1B, 44-2, 44-3, 44-4, 44-6B, 44-9, 45-1, 45-2, 45-3, 45-4, 45-6, (Erz.-Nr.
  • Page 39 2333 (Erz.-Nr./Model No. 2333), 2334 (2334), 2335 (2335), 2336, 2373, 2375, 44-0B, 44-1B, 44-2, 44-3, 44-6B, 44-7, 44-8, 45-1, 45-2, 45-3, 45-4, 45-5, 45-6, 2468, 2478 (2720), 45-9, 46-5, 46-6, 46-7, 46-9, 47-1, 47-4, 47-5, 47-9, 2487, 2488, 2489, 2491, 2494, 2495 (2730), 2405, 2406, 2421 (2811), 2392, 2412 (2812), 2114 (2814), 2417 (2817), 2422 (2814), 2423 (2823) die Konformität mit nachfolgender Anforderung/the conformity with the following requirement.
  • Page 40 Modul D/Module D, Nr./No. / N° CE-0062-PED-D-SAM 001-16-DEU-rev-A SAMSON erklärt in alleiniger Verantwortung für folgende Produkte:/For the following products, SAMSON hereby declares under its sole responsibility: Sicherheitsüberströmventil SÜV 44-4 (2720-03)/Safety Excess Pressure Valve SEV 44-4 (2720-03) die Konformität mit nachfolgender Anforderung/the conformity with the following requirement.
  • Page 41 Modul D/Module D, Nr./No. / N° CE-0062-PED-D-SAM 001-16-DEU-rev-A SAMSON erklärt in alleiniger Verantwortung für folgende Produkte:/For the following products, SAMSON hereby declares under its sole responsibility: Sicherheitsüberströmventil SAV 44-8 (2720-02)/Safety Excess Pressure Valve SSV 44-8 (2720-02) die Konformität mit nachfolgender Anforderung/the conformity with the following requirement.
  • Page 42 EB 2723 EN...
  • Page 43 EB 2723 EN...
  • Page 44 EB 2723 EN SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 samson@samson.de · www.samson.de...

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44-444-8

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