Welker IRM-4SS Installation, Operation And Maintenance Manual Download Page 1 | Manualshive

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© Copyright 2007, Welker, Inc.

Installation, Operation, and

Maintenance Manual

Welker

®

Manual Insertion Probe

Instrument Regulator

Model

IRM-4SS

The information in this manual has been carefully checked for accuracy and is intended to be used as a guide for
the installation, operation, and maintenance of the Welker equipment described above. Correct operating and/or
installation techniques, however, are the responsibility of the end user. Welker reserves the right to make changes
to this and all products in order to improve performance and reliability.

13839 West Bellfort

Sugar Land, Texas 77498-1671

U.S.A.

Tel.: (800) 776-7267
Tel.: (281) 491-2331

Fax: (281) 491-8344

www.welkereng.com

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Summary of Contents for IRM-4SS

Page 1: ...ed as a guide for the installation operation and maintenance of the Welker equipment described above Correct operating and or installation techniques however are the responsibility of the end user Welker reserves the right to make changes to this and all products in order to improve performance and reliability 13839 West Bellfort Sugar Land Texas 77498 1671 U S A Tel 800 776 7267 Tel 281 491 2331 ...

Page 2: ...CT 3 1 3 SPECIFICATIONS 4 2 INSTALLATION INSTRUCTIONS 6 2 1 GENERAL 6 2 2 IMPORTANT INFORMATION 6 2 3 INSTALLATION INSTRUCTIONS 6 2 4 RETRACTING THE PROBE 8 3 MAINTENANCE 9 3 1 GENERAL 9 3 2 INSTRUMENT REGULATOR MAINTENANCE 10 3 3 RELIEF VALVE RV 1 MAINTENANCE 11 3 4 PROBE MAINTENANCE 12 Welker Welker Jet and WelkerScope are Registered Trademarks owned by Welker Inc ...

Page 3: ...onal requirements and specifications that are not listed in this manual Notes Warnings and Cautions Notes emphasize information or set it off from the surrounding text Caution messages appear before procedures that if not observed could result in damage to equipment Warnings alert users to a specific procedure or practice that if not followed correctly could cause personal injury 1 2 Description o...

Page 4: ...6 Stainless Steel Viton PTFE others available Insertion Length 18 457mm Standard others available in 1 25 4mm increments Viscosity Range 0 009cp to 2 000cp 68 F 20 C Sample Outlet Connection 1 4 NPT Pipeline Connection 3 4 or 1 NPT Products Natural gas or other gases or liquids compatible with the materials of construction Maximum Allowable Operating Pressure 2 160 PSIG 20 F to 100 F 148 bar 29 C ...

Page 5: ...SPECIFICATIONS IOM 089 Page 5 of 13 Manual Insertion Probe Instrument Regulator Rev B Last updated 9 8 2009 ...

Page 6: ... inserted into the pipeline Avoid this practice Operate the unit slowly and smoothly when inserting and retracting the unit to avoid unnecessary slamming Avoid rough handling of the probe and unnecessary bending of the probe shaft The shaft has a polished surface that travels through a seal The entire instrument should be treated with care 2 3 Installation Instructions The preferred location for i...

Page 7: ...rt on the regulator to the inlet of the instrument 10 Install the lock down bolts Part 26 11 Check for leaks 12 Connect a gauge to the gauge port in the regulator 13 If necessary follow steps in number 14 of this Section using a safe auxiliary gas supply to set the relief valve to the proper pressure If relief is preset skip to number 15 of this Section 14 Set the Relief Valve RV 1 Figure 3 If req...

Page 8: ...service Pipeline can now be restored to full operating pressure 2 4 Retracting the Probe 1 Loosen the jam nut Part 2 and turn the adjusting screw counterclockwise until there is no output from the regulator 2 Depressurize the pipeline to 500 PSI or lower and disconnect any tubing from the probe assembly 3 Firmly grasp the probe valve 4 Push down on the valve while loosening the lock down bolts Par...

Page 9: ...e circumstances a more frequent maintenance schedule may be appropriate New seals supplied in spare Parts kits are not lubricated They should be lightly coated with lubrication grease Dow Corning 111 DC 111 or equivalent lubricant before they are installed into the equipment This helps with the installation of the seals while reducing the risk of damage when positioning them on the parts Maintenan...

Page 10: ...ng Part 3 5 Disassemble Diaphragm Assembly a Unscrew the spring housing Part 6 and remove b Remove the top spring guide Part 4 and the spring Part 3 c Remove the bottom spring guide Part 7 d Remove the diaphragm assembly Part 8 Inspect for wear and replace if necessary e Set the diaphragm back into place f Set the bottom spring guide back into place on top of the diaphragm 6 Set the spring Part 3 ...

Page 11: ...n it can be reused 5 Check the ball for nicks and scratches and replace if necessary 6 Unscrew the base from the spring housing and replace the seal See Figure 5 7 Screw the base and spring housing back together 8 Drop the ball and spring into the spring housing The ball must rest on the seal If the ball rests on the metal trim then the relief will not seat 9 Replace the spring adjuster 10 The rel...

Page 12: ... or scratches on either the poppet or the seat will prevent positive shut off of the regulator 5 Use solvent to clean the filter Part 28 in the retainer 6 Guide the poppet into the seat 7 Replace the spring and seat retainer 8 Tighten the seat retainer firmly 9 Replace the O ring Part 27 on the shaft 10 If there is a shaft extension remove the extension from the thermal fins 11 Reattach the therma...

Page 13: ...13839 West Bellfort Sugar Land Texas 77498 1671 Phone 281 491 2331 Fax 281 491 8344 Toll Free 800 776 7267 Web Page www welkereng com ...

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