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Swagelok LPRS4 Series, User Manual, Page: 3 / 24

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Swagelok LPRS4 Series User Manual Download Page 3

3 

 

Contents 

Introduction ........................................................................................................................................................ 4

 

Overview.......................................................................................................................................................... 4

 

Standard Features ........................................................................................................................................... 4

 

Additional Options ........................................................................................................................................... 4

 

Oxygen Service ............................................................................................................................................... 4

 

Installation .......................................................................................................................................................... 5

 

Points of Attention Before Installation ............................................................................................................. 5

 

Installation ....................................................................................................................................................... 5

 

Operation ............................................................................................................................................................ 6

 

Required Tools for Operation .......................................................................................................................... 6

 

Points of Attention Before Operation ............................................................................................................... 6

 

Adjusting the Set Pressure .............................................................................................................................. 6

 

Maintenance ....................................................................................................................................................... 7

 

Required Tools for Maintenance ..................................................................................................................... 7

 

Points of Attention Before Removal from the System ..................................................................................... 8

 

Removal from the System ............................................................................................................................... 8

 

Assembly Reference Data............................................................................................................................... 9

 

Disassembly .................................................................................................................................................. 17

 

Points of Attention Before Reassembly ......................................................................................................... 17

 

Reassembly ................................................................................................................................................... 18

 

RS Series: Standard Diaphragm Sensing ..................................................................................................... 18

 

RS Series: Standard Piston Sensing ............................................................................................................ 18

 

RS Series: Diaphragm Sensing, Self-venting Option .................................................................................... 18

 

RS Series: Piston Sensing, Self-venting Option ........................................................................................... 19

 

LPRS Series .................................................................................................................................................. 19

 

Testing .............................................................................................................................................................. 20

 

Seat Leak Test .............................................................................................................................................. 20

 

Shell Leak Test .............................................................................................................................................. 20

 

Troubleshooting .............................................................................................................................................. 21

 

 

 

Summary of Contents for LPRS4 Series

Page 1: ...LP RS H 4 6 8 Pressure Reducing Regulator User Manual Read the complete manual before installing and using the regulator...

Page 2: ...dia should be free of excessive moisture to prevent icing at high flow Always wear the appropriate protective clothing including safety glasses gloves etc if required Follow the applicable safety and...

Page 3: ...aintenance 7 Required Tools for Maintenance 7 Points of Attention Before Removal from the System 8 Removal from the System 8 Assembly Reference Data 9 Disassembly 17 Points of Attention Before Reassem...

Page 4: ...s could result in product failure Standard Features Bolted construction Stainless steel as standard Fully serviceable Diaphragm or piston sensing Balanced poppet Panel mounting Additional Options The...

Page 5: ...me of delivery any gauge ports may be plugged with blind fittings Remove these and connect gauges if desired If inlet outlet fittings are being used assemble them to the regulator per the manufacturer...

Page 6: ...let dependency or Supply Pressure Effect SPE This phenomenon does not indicate a problem with the regulator Adjusting the Set Pressure The set pressure is the desired outlet pressure of the regulator...

Page 7: ...er during commissioning or normal operation Swagelok recommends having maintenance kits readily available on site The need for maintenance kits is particularly important during the commissioning phase...

Page 8: ...or toxic If required take the necessary safety precautions to ensure a safe workspace and your personal safety CAUTION The product can be hot or cold depending on the environmental temperature and the...

Page 9: ...2 C1 C3 19 Piston guide ring B1 B2 C1 C3 20 Set spring C1 C4 21 Spring guide C1 Lubricate central recess 22 Ball C1 Lubricate 23 Spring housing N A 24 Washer E1 25 Cap screw E1 RS H 20 27 Lubricate th...

Page 10: ...10 For more information on RHPS series maintenance kits refer to the Pressure Regulators RHPS Series catalog MS 02 430 RS H Series Standard Exploded View Fig 1...

Page 11: ...11 RS Series Diaphragm Sensing Section View Fig 2...

Page 12: ...12 RSH Series Piston Sensing Anti tamper Section View Fig 3...

Page 13: ...13 RSH Series Alternative Configuration Example Control Range 6 Fig 4 RSH Series Alternative Configuration Example Control Range 9 Fig 5...

Page 14: ...14 RS H Series Self venting Diaphragm Section view Fig 6 RS H Series Self venting Piston Section view Fig 7...

Page 15: ...15 LPRS series Exploded view Fig 8...

Page 16: ...16 LPRS series Cross section view Fig 9...

Page 17: ...present remove the self vent plate 35 and associated components 8a Remove the diaphragm assembly and O ring 17 from the self vent plate 35 Unscrew the diaphragm plate 11 from the diaphragm screw 34 to...

Page 18: ...the spring housing 23 RS Series Standard Piston Sensing 1 Follow steps 1 through 7 of the RS series standard diaphragm sensing reassembly procedure 2 Insert the piston plate O ring 15 piston O ring 17...

Page 19: ...1 through 14 of the RS series standard diaphragm sensing reassembly procedure LPRS Series 1 Follow steps 1 through 7 of the RS series standard diaphragm sensing reassembly procedure 2 Place the diaphr...

Page 20: ...bar on the regulator and close the downstream shutoff valve 4 Monitor the outlet pressure An increase in pressure over time indicates a seat leak 5 Repeat the procedure with the highest inlet pressur...

Page 21: ...gulator is equal to or greater than the desired set pressure The outlet pressure rises too much when going from a dynamic to a static situation There is too much flow in the dynamic situation A larger...

Page 22: ...22...

Page 23: ...23...

Page 24: ...acked by The Swagelok Limited Lifetime Warranty For a copy visit swagelok com or contact your authorized Swagelok representative Swagelok Snoop TM Swagelok Company Krytox TM The Chemours Company 2018...

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