Emerson Tartarini V Series Instruction Manual
Emerson Tartarini V Series Instruction Manual

Emerson Tartarini V Series Instruction Manual

Relief valves

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Instruction Manual
D103666X012
January 2015 - Rev. 00
relief Valves
Summary
Introduction ........................................................................
SEP Statement ..................................................................
P.E.D. Categories and Fluid Group ...................................
Characteristics ...................................................................
Labelling ............................................................................
Overpressure Protection ....................................................
Transport and Handling .....................................................
Atex Requirements ............................................................
Operation ...........................................................................
Dimensions and Weights ...................................................
Installation .........................................................................
Startup ...............................................................................
Setting ...............................................................................
Shutdown ...........................................................................
Periodical Checks ..............................................................
Maintenance ......................................................................
Spare Parts ........................................................................ 7
Troubleshooting .................................................................
Parts Lists ..........................................................................
Schematic Assemblies .......................................................

INTrODuCTION

Scope of manual
This manual provides instructions for installation, startup,
maintenance and spare parts ordering for the V Series
spring-loaded relief valves.
This product has been designed to be used with fuel gases of
1st and 2nd family according to EN 437, and with other non
aggressive and non fuel gases. For any other gases, other
than natural gas, please contact your local sales agent.
TM
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1
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2
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Figure 1. Relief Valves V/50, V/60 Series and Type V/20-2
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3
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SEP STaTEmENT

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Emerson Process Management declares this product (V/50
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and V/20-2) conforms to Pressure Equipment Directive
(PED) 97/23/EC Article 3 section 3 and was designed
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and manufactured in accordance with sound engineering
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practice (SEP).
Per Article 3 section 3, this "SEP" product must not bear the
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CE marking.
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Product Description
The V Series are spring-loaded automatic type relief valves.
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They are used in reduction, distribution and conveying
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stations using suitably filtered natural gas.
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They can also be used for air, propane, butane, LPG, city
gas, nitrogen, carbon dioxide.
The following versions are available:
V/50 and V/60 : for very low pressure applications
V/51 and V/61 : for low pressure applications
V/52 and V/62 : for middle pressure applications
V/20-2
All standard gas pressure devices (relief valves) used
in assemblies will comply to EN 12186 and EN 12279
standards.
V Series
: for high pressure applications

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Table of Contents
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Summary of Contents for Emerson Tartarini V Series

  • Page 1: Table Of Contents

    Atex Requirements ............Operation ................Dimensions and Weights ........... SEP STaTEmENT Installation ................. Emerson Process Management declares this product (V/50 Startup ................and V/20-2) conforms to Pressure Equipment Directive (PED) 97/23/EC Article 3 section 3 and was designed Setting ................
  • Page 2: P.e.d. Categories And Fluid Group

    V Series P.E.D. CaTEGOrIES aND FLuID GrOuP Outlet Set Pressure ranges V/50 Series: 0.025 ÷ 2 bar The V Series relief valves are designed as functional V/60 Series: 0.025 ÷ 2 bar equipments and they are typically used in gas pressure reducing stations for overpressure protection by releasing Type V/20-2: 1.5 ÷...
  • Page 3: Overpressure Protection

    V Series OVErPrESSurE PrOTECTION • provision in 9.3 of EN 12186 & 12279 shall be enforced by pressure regulating/measuring station/installation’s end user The recommended safety pressure limitations are stamped on the valve label. • external tightness test shall be carried out after each reassembly at installation site using testing pressure in Downstream overpressure protection shall be also provided accordance with national rules...
  • Page 4: Dimensions And Weights

    V Series Type V/20-2 Ø B Figure 4. Closed V/20-2 Relief Valve Figure 5. V/50 and V/60 Series Dimensions Whenever gas pressure under pad (O) is higher than the force exerted by spring (M) in the opposite direction, Type V/20-2 pad older device (P) is raised, thereby causing the release orifice to open.
  • Page 5: Installation

    V Series INSTaLLaTION To prevent such injury or damage, provide piping or tubing to vent the gas to a safe, well-ventilated area in accordance also • Ensure that the data found on the valve label are with international and applicable codes and compatible with usage requirements.
  • Page 6: Shutdown

    V Series ShuTDOWN In accordance with applicable National or Industry codes, standards and regulations/recommendations, all hazards covered by specific tests after final assembling before WarNING applying the CE marking, shall be covered also after every subsequent reassembly at installation site, in order to ensure that the equipment will be safe throughout its intended life.
  • Page 7: Spare Parts

    V Series Type V/20-2 (See Figure 9) a. Unscrew the outlet connection (key 9). b. Unscrew the adjusting nut (key 2), remove the spring (key 8) and the pad unit (key 4-5-6-7). c. Disassemble the pad unit parts and replace the pad (key 6).
  • Page 8: Parts Lists

    V Series ParTS LISTS Type V/20-2 relief Valve (See Figure 9) V/50 Series relief Valve Description (See Figure 7) Body Description Adjusting nut Pad holder Threaded stem Pad retainer Adjusting nut Spring Spring Outlet connection Cover Washer Plate Rubber parts marked with (*) are supplied in the “spare parts Diaphragm kit”, recommended as stock.
  • Page 9: Schematic Assemblies

    V Series SChEmaTIC aSSEmbLIES TYPE V/50 9 10 TYPE V/51 DETAIL TYPE V/52 DETAIL LM/518/1 Figure 7. V/50 Series Relief Valve...
  • Page 10 V Series TYPE V/60 TYPE V/61 DETAIL TYPE V/62 DETAIL LM/1160 Figure 8. V/60 Series Relief Valve...
  • Page 11 V Series LM/643 Figure 9. Type V/20-2 Relief Valve...
  • Page 12 For further information visit www.emersonprocess.com/regulators The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Tartarini is a mark of O.M.T. Officina Meccanica Tartarini s.r.l., a business of Emerson Process Management.

Table of Contents