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Summary of Contents for Welker GSS-4PM
- Page 1 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WELKER COMPOSITE GAS SAMPLER MODEL GSS-4PM DRAWING NUMBERS AD617BS AD617CL MANUAL NUMBER IOM-022 REVISION Rev. F, 10/22/2018...
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Page 2: Table Of Contents
APPENDIX A: Referenced or Attached Documents Copyright © 2018 Welker, Inc. All rights reserved. Welker®, W Welker®, W logo, WelkerScope®, Welker Jet®, and OdorEyes® are registered trademarks of Welker, Inc. IOM-022 MODEL: GSS-4PM REV: F 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com... -
Page 3: Safety
Warning messages appear before procedures that could result in personal injury if not observed. This manual is intended to be used as a basic installation and operation guide for the Welker Composite Gas Sampler, GSS-4PM. For comprehensive instructions, please refer to the IOM Manuals for each individual component. A list of relevant component IOM Manuals is provided in Appendix A of this manual. -
Page 4: Product Information
Timer/Controller, both of which are capable of operating the solenoid for timed or proportional to flow sampling. In locations where the process gas is not clean and dry, the GSS-4PM can be configured for operation by an auxiliary instrument air supply. For such locations, the Welker LE-2SSKO Probe Mounted Liquid Eliminator is recommended in place of the standard probe, as it removes free liquids, condensed hydrocarbons, glycol, and amines from gas samples, thus ensuring the collection of representative samples and protecting the sampler. -
Page 5: Specifications
1.3 Specifications The specifications listed in this section are generalized for this equipment. Welker can modify the equipment according to your company's needs. Please note that the specifications may vary depending on the customization of your equipment. Table 1: GSS-4PM Specifications... -
Page 6: Equipment Diagrams
1.4 Equipment Diagrams Figure 1: GSS-4PM Connections Diagram IOM-022 MODEL: GSS-4PM REV: F 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331... - Page 7 Figure 2: GSS-4PM With Standard Probe Figure 3: GSS-4PM With LE-2SSKO Probe Mounted Liquid Eliminator IOM-022 MODEL: GSS-4PM REV: F 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331...
- Page 8 Figure 4: LE-2SSKO Probe Mounted Liquid Eliminator Diagram IOM-022 MODEL: GSS-4PM REV: F 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331...
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Page 9: Installation & Operation
3. Typically, the Welker GSS-4PM is installed with a single probe. The unique self-purging design of the GSS-4PM uses process gas to supply the solenoid, thus purging the sample line prior to each sample grab. If auxiliary instrument air is used to supply the solenoid, the customer must have a return port downstream of a moderate pressure drop (e.g., an... -
Page 10: Installation
As necessary, connect from the solenoid exhaust tubing to a flare (Figure 1). 5. If the process gas used to actuate the sampler cannot be safely vented to the atmosphere, Welker recommends connecting from the solenoid exhaust tubing to a flare. ... - Page 11 The GSS-4PM is designed to use process gas as the instrument supply and does not require an auxiliary instrument air supply. However, if process gas is not clean and dry and/or cannot be safely vented to the atmosphere, Welker recommends the use of an auxiliary instrument air supply.
- Page 12 If the GSS-4PM is equipped with the standard probe and process gas will be used to pre-charge the constant pressure cylinder, remove the plug from the probe base, and then tube from this port to the pre-charge valve on the constant pressure cylinder.
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Page 13: Start-Up Procedures
As necessary, adjust the inline relief. If the inline relief does not need to be adjusted, proceed to step 22. 3. If a Welker SC Single Cavity Cylinder will be used for sample collection, continue to step 4. If a Welker Constant Pressure Cylinder will be used for sample collection, proceed to step 11. Setting the Inline Relief The inline relief is designed to allow product to flow in one direction only. - Page 14 If the GSS-4PM is equipped with a standard probe, slowly open sample pump isolation valve D (Figure 2). If the GSS-4PM is equipped with the optional LE-2SSKO, slowly open inlet (P₁) valve A and return (P₂) valve B (Figure 3).
- Page 15 If the GSS-4PM is equipped with a standard probe, slowly open sample pump isolation valve D (Figure 2). If the GSS-4PM is equipped with the optional LE-2SSKO, slowly open inlet (P₁) valve A and return (P₂) valve B (Figure 3).
- Page 16 20. setting, subtract this pressure reading from the pipeline pressure. When sampling into a Welker Constant Pressure Cylinder, the pressure gauge should read approximately 200 psig below pipeline pressure at start-up. If the current inline relief setting is approximately 200 psig, the inline relief does not need to be adjusted; continue to 21.
- Page 17 If the GSS-4PM is equipped with a standard probe, slowly open sample pump isolation valve D (Figure 2). If the GSS-4PM is equipped with the optional LE-2SSKO, slowly open inlet (P₁) valve A and return (P₂) valve B (Figure 3).
- Page 18 After several minutes, read the pressure on the sample outlet pressure gauge. If the pressure has dropped, check the 39. GSS-4PM for leaks and repair as necessary. If the pressure has not dropped, the unit is ready to be placed into operation.
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Page 19: Maintenance
3. All maintenance and cleaning of the unit should be performed on a smooth, clean surface. 4. Welker recommends having the following tools available for maintenance. Please note that the exact tools required may vary by model. a. ½" Wrench b. -
Page 20: Maintenance
3.2 Maintenance If maintenance on the valves or probe is required, the GSS-4PM must be isolated from pipeline pressure and removed from the pipeline before maintenance can be safely performed. Prior to performing maintenance, the GSS-4PM must be isolated from pipeline pressure. However, the GSS-4PM does NOT need to be removed from the pipeline to perform standard maintenance. - Page 21 Lubricate the inside of the collection head shield, and then install the replacement collection cup and non-extrusion disc. Welker recommends a non-hydrocarbon-based lubricant, such as Krytox®, for use with this unit. 12. Return the collection head shield to the adapter, and then install the holding pin to secure the collection head shield to the adapter.
- Page 22 Return the buttonhead screw and washer seal to the end of the base. 22. Replace the O-rings on the sealing face of the base. 23. Set the base aside. IOM-022 MODEL: GSS-4PM REV: F 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331...
- Page 23 29. Closely inspect the polished outer diameter of the shaft. Scratches or pits may cause the seals to leak. If scratches or pits are present, the unit may need to be repaired or replaced. Contact Welker for service options. 30.
- Page 24 Using the machine screws and washers, install the base to the body (Figure 10). Tighten the machine screws by hand. 43. Apply anti-galling compound to the threads on the lower diaphragm case. Welker recommends Never-Seez® or an equivalent anti-galling compound for use with this unit. 44. Install the body to the diaphragm assembly.
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Page 25: Troubleshooting
The sample cylinder or constant for instructions on maintaining the inline pressure cylinder is not filling. relief. The GSS-4PM is unable to build See Section 2.3, Start-Up Procedures, for pressure. instructions on testing the GSS-4PM and ensuring that the sampler will build pressure. - Page 26 Table 2: GSS-4PM Troubleshooting (Continued) Issues Possible Causes Solutions The inline relief setting is not adequate. See Section 2.3, Start-Up Procedures, for instructions on setting the inline relief. As necessary, see Section 3.2, Maintenance, for instructions on maintaining the inline relief.
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Page 27: Purging And Cleaning The Sample Cylinder
Welker recommends routinely inspecting the sample cylinders for any dents, damage, and/or signs of misuse, as these may affect proper functioning of the unit. If any dents, damage, and/or signs of misuse are present, please contact Welker for service options. -
Page 28: Appendix
Norgren R83 Cylinder Gas Pressure Regulator For Industrial Gas Systems (Welker IOM-V014) Versa Products Company, Inc. C-Series Valves (Welker IOM-V041) Versa Products Company, Inc. C-316 Series Stainless Steel 3-Way and 4-Way Manual, Latching and Key Valves (Welker IOM-V070) Versa Products Company, Inc. CSG-4222-LA-XX-D012 4-Way Solenoid Valve (Welker IOM-V071) ... - Page 29 ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ 13839 West Bellfort Street Sugar Land, TX 77498 Phone: 281.491.2331 welker.com IOM-022 MODEL: GSS-4PM REV: F 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331...
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