Spirax Sarco LCV3 Installation And Maintenance Instructions Manual Download Page 1 | Manualshive

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Spirax Sarco LCV3 Installation And Maintenance Instructions Manual Download Page 1

IM-P029-17

ST Issue 4

1

LCV3, LCV4, LCV6 and LCV7

Lift Check Valves

Installation and Maintenance Instructions

IM-P029-17

ST Issue 4

0290050/4

1. Safety information

2. General

product information

3. Installation

4. Commissioning

5. Operation

6. Spare parts and

Maintenance

© Copyright 2015

Printed in France

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Summary of Contents for LCV3

Page 1: ... Lift Check Valves Installation and Maintenance Instructions IM P029 17 ST Issue 4 0290050 4 1 Safety information 2 General product information 3 Installation 4 Commissioning 5 Operation 6 Spare parts and Maintenance Copyright 2015 Printed in France ...

Page 2: ...IM P029 17 ST Issue 4 2 ...

Page 3: ...he product is suitable for the intended use application The products listed below comply with the requirements of the European Pressure Equipment Directive 97 23 EC and carry the mark when so required It should be noted that products rated as SEP are required by the Directive not to carry the mark The products fall within the following Pressure Equipment Directive categories Unit Sizes Connections...

Page 4: ...E 150 1 SEP SEP SEP JIS KS 10 BSP 2 1 SEP SEP PN16 PN25 and PN40 JIS KS 20 Others 2 1 2 SEP DN65 to DN100 All SEP 1 2 SEP LCV7 DN15 to DN25 All SEP SEP SEP SEP DN32 to DN40 ASME 250 2 1 SEP SEP NPT Others 1 SEP SEP SEP DN50 to DN65 ASME 125 1 SEP SEP SEP JIS KS 10 Others 2 1 SEP SEP DN80 ASME 250 2 1 2 SEP Others 2 1 SEP SEP DN100 ASME 125 2 1 SEP SEP PN16 JIS KS 10 Others 2 1 2 SEP ...

Page 5: ...m v Remove protection covers from all connections and protective film from all name plates where appropriate before installation on steam or other high temperature applications 1 2 Access Ensure safe access and if necessary a safe working platform suitably guarded before attempting to work on the product Arrange suitable lifting gear if required 1 3 Lighting Ensure adequate lighting particularly w...

Page 6: ...e 1 11 Permits to work All work must be carried out or be supervised by a suitably competent person Installation and operating personnel should be trained in the correct use of the product according to the Installation and Maintenance Instructions Where a formal permit to work system is in force it must be complied with Where there is no such system it is recommended that a responsible person shou...

Page 7: ... that under EC Health Safety and Environment Law when returning products to Spirax Sarco they must provide information on any hazards and the precautions to be taken due to contamination residues or mechanical damage which may present a health safety or environmental risk This information must be provided in writing including Health and Safety data sheets relating to any substances identified as h...

Page 8: ...eam Trap set Trap set Trap set Steam Gradient 1 100 Gradient 1 100 30 50 metre intervals Condensate Condensate Condensate Prevention of water hammer Steam trapping on steam mains Steam Mains Do s and Don ts Steam Steam Flow Flow ...

Page 9: ...e correct torque figures 1 1 4 2 3 8 2 6 3 7 Flange bolts should be gradually tightened across diameters to ensure even load and alignment Guides Guides Limit rods Limit rods Fixing point Medium distance Small lateral movement Small lateral movement Large lateral movement Large lateral movement Short distance Fixing point Axial movement Axial movement Guides Guides 5 4 ...

Page 10: ...el A2 70 Standards These products fully comply with the requirements of the European Pressure Equipment Directive 97 23 EC and carries the mark when so required Standard shut off This range of lift check valves conform to EN 12266 1 2003 Rate F Certification With the exception of the LCV3 these products are available with certification to EN 10204 3 1 Note All certification inspection requirements...

Page 11: ...ue 4 11 Fig 1 Unit LCV6 LCV7 Connections PN40 JIS KS20 ASME 150 ASME 300 BSP NPT SW PN16 PN25 JIS KS10 ASME 125 ASME 250 BSP NPT DN15 DN20 DN25 1 DN32 1 DN40 1 DN50 2 DN65 2 DN80 3 DN100 4 2 2 Sizes and pipe connections ...

Page 12: ...ign conditions JIS KS 10 PMA Maximum allowable pressure 13 7 bar g 120 C 199 psi g 248 F TMA Maximum allowable temperature 220 C 9 8 bar g 428 F 142 psi g Minimum allowable temperature 0 C 32 F PMO Maximum operating pressure for saturated steam service 11 2 bar g 162 psi g TMO Maximum operating temperature 220 C 9 8 bar g 428 F 142 psi g Minimum operating temperature Note For lower operating tempe...

Page 13: ...ratures consult Spirax Sarco 10 C 14 F Designed for a maximum cold hydraulic test pressure of 24 bar g 348 psi g Flanged ASME 125 Body design conditions ASME 125 PMA Maximum allowable pressure 13 8 bar g 65 C 200 psi g 149 F TMA Maximum allowable temperature 232 C 8 6 bar g 449 F 125 psi g Minimum allowable temperature 10 C 14 F PMO Maximum operating pressure for saturated steam service 10 bar g 1...

Page 14: ...anged JIS KS 20 Pressure psi g Temperature F Pressure psi g Temperature F Body design conditions JIS KS 20 PMA Maximum allowable pressure 34 bar g 120 C 493 psi g 248 F TMA Maximum allowable temperature 300 C 32 bar g 572 F 464 psi g Minimum allowable temperature 0 C 32 F PMO Maximum operating pressure for saturated steam service 30 bar g 435 psi g TMO Maximum operating temperature 300 C 32 bar g ...

Page 15: ...4 psi g Minimum allowable temperature 10 C 14 F PMO Maximum operating pressure for saturated steam service 13 9 bar g 201 psi g TMO Maximum operating temperature 300 C 10 2 bar g 572 F 148 psi g Maximum operating temperature with high temperature bolting 400 C 6 5 bar g 752 F 94 psi g Minimum operating temperature Note For lower operating temperatures consult Spirax Sarco 10 C 14 F Designed for a ...

Page 16: ...urve Flanged JIS KS 20 Pressure psi g Temperature F Pressure psi g Temperature F Body design conditions JIS KS 20 PMA Maximum allowable pressure 34 bar g 120 C 493 psi g 248 F TMA Maximum allowable temperature 300 C 32 bar g 572 F 464 psi g Minimum allowable temperature 0 C 32 F PMO Maximum operating pressure for saturated steam service 23 5 bar g 431 psi g TMO Maximum operating temperature 300 C ...

Page 17: ...le temperature 400 C 29 4 bar g 752 F 426 psi g Minimum allowable temperature 10 C 14 F PMO Maximum operating pressure for saturated steam service 34 bar g 493 psi g TMO Maximum operating temperature 400 C 29 4 bar g 752 F 426 psi g Minimum operating temperature Note For lower operating temperatures consult Spirax Sarco 10 C 14 F Designed for a maximum cold hydraulic test pressure of 76 bar g 1102...

Page 18: ...IS KS 10 C Flanged JIS KS 10 Pressure psi g Temperature F Pressure psi g Temperature F Body design conditions JIS KS 10 PMA Maximum allowable pressure 13 7 bar g 120 C 199 psi g 248 F TMA Maximum allowable temperature 300 C 9 8 bar g 572 F 142 psi g Minimum allowable temperature 0 C 32 F PMO Maximum operating pressure for saturated steam service 12 3 bar g 178 psi g TMO Maximum operating temperatu...

Page 19: ...atures consult Spirax Sarco 10 C 14 F Designed for a maximum cold hydraulic test pressure of 38 bar g 551 psi g Flanged ASME 125 Body design conditions ASME 125 PMA Maximum allowable pressure 13 8 bar g 65 C 200 psi g 149 F TMA Maximum allowable temperature 232 C 8 6 bar g 449 F 125 psi g Minimum allowable temperature 10 C 14 F PMO Maximum operating pressure for saturated steam service 10 bar g 14...

Page 20: ... 4 4 DN25 1 88 88 4 4 4 4 DN32 1 117 117 5 DN40 1 117 117 5 5 5 5 DN50 2 117 117 5 5 5 5 DN65 2 166 7 7 7 DN80 3 166 7 7 7 DN100 4 180 8 8 8 Dimension A Connection Screwed BSP Socket weld Flanged PN40 PN16 PN25 JIS 10 KS 10 JIS 20 KS 20 Screwed NPT Flanged ASME 125 Flanged ASME 250 ASME 300 LCV3 LCV7 DN15 130 130 6 7 7 DN20 155 150 6 7 7 DN25 1 160 160 7 7 7 7 DN32 1 185 180 8 DN40 1 205 200 9 8 8...

Page 21: ... 10 23 7 20 12 89 9 59 13 37 10 07 11 99 8 69 DN40 1 11 43 8 00 14 35 9 55 14 77 9 97 13 18 9 28 DN50 2 14 96 10 50 16 86 12 06 17 51 12 71 15 65 10 65 DN65 2 27 04 32 25 33 13 29 53 DN80 3 29 47 36 02 37 00 33 00 DN100 4 48 93 52 06 53 47 48 82 A B Flanged Screwed and Socket weld 2 5 Product name plate Fig 2 Fig 3 Description PMA T max Code number TMO T min Connection All sizes DN15 143 DN20 143 ...

Page 22: ...return check valve downstream of any steam traps which discharge into condensate return lines where backpressure is experienced This is most commonly caused by a rising condensate line The check valve will prevent the steam space flooding when the inlet pressure is reduced or the steam is shut off 3 6 When the LCV is installed after a blast action steam trap thermodynamic and inverted bucket it sh...

Page 23: ...the system is fully functional Carry out tests on any alarms or protective devices 4 Commissioning LCV check valves are opened by the pressure of the fluid and closed by the spring as soon as the flow ceases and before the reverse flow occurs 5 Operation Fig 5 Open Closed ...

Page 24: ...asket Spare 1 LCV Internals kit Cover gasket seat gasket spring disc and seat Spare 2 How to order spares Always order spares by using the description given in the column headed Available spares and state the size and type of trap Always order spares by using the description of the LCV and Spare 1 or Spare 2 Example 1 off LCV Internals kit Spare 2 for a Spirax Sarco DN15 LCV4 lift check valve havi...

Page 25: ...IM P029 17 ST Issue 4 25 1 1 2 Fig 6 ...

Page 26: ...to renew the internal parts Disc 6 Spring 7 and Seat 4 Isolate the LCV and allow the pressure and temperature to reduce to ambient conditions After isolation unscrew the bolts 8 and remove the cover 1 old gasket 3a and cage 9 Remove the spring 7 and the disc 6 Remove the seat 4 and the seat gasket 3b Carefully clean the recess Refit new seat gasket 3b and cover gasket 3a Refit new internals Seat 4...

Page 27: ...IM P029 17 ST Issue 4 27 8 1 3a 5 9 7 6 3b 4 2 Fig 7 ...

Page 28: ...IM P029 17 ST Issue 4 28 ...

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