WM-GL-HAL-PSL-503 - Maintenance Procedures For A Lo Torc Plug Valve [PDF]

Zitiervorschau

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

1.0

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 1 of 29

Objective This work method covers preventative maintenance of a Lo Torc® Plug Valve and complete disassembly and reassembly of the valve. Step by step procedures, with photographs, for replacing the plug and seats are provided.

2.0

Scope This document applies to all Halliburton operations that use Lo Torc Plug Valves.

3.0

Definitions: Lo Torc Plug Valve Components

Lo Torc Plug Valve Key Components 1. 2. 3. 4. 5. 6. 7. 8. 9.

Valve body Plug Valve Inserts (set of two) End connections Adjusting nut O ring seals Plug seals Grease fitting Valve operation – handler adapter

For a detailed description, please refer to the Lo Torc catalogue.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

4.0

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 2 of 29

Reference Documents ST-GL-HAL-PSL-501 Global Surface Manifold Qualification Standard Manifold Equipment Maintenance Process Map PM-GL-HAL-PSL-502 SMEEM Surface Manifold Equipment Evaluation Manual LO TORC® PLUG VALVE CATALOG Lo Torc® Plug Valves Library Lo-Torc Plug Valve Training Video Operating and Maintenance Instructions for Halliburton’s Lo Torc Plug Valve (Part No. 70.31059, SAP 100001838)

5.0

Performance Criteria This process should be followed when maintaining a Lo Torc Plug Valve. Lo-Torc Plug valves must be requalified every 12 months following the inspection and requalification procedures defined in the SMEEM Surface Manifold Equipment Evaluation Manual. Proper operation and maintenance can help extend the service life of Lo Torc Plug valves. Due to widely varied applications, no specific frequency of in-service inspection for the Lo Torc Plug Valves can be recommended. Periodic and frequent inspection of each valve will provide a basis for predicting the life or usefulness of the plug and inserts. Replacing these parts when they are eroded or worn will help prevent any erosion of the body. •

Inspect the seals for cracks, internal components for erosion and corrosion.

Note: if the valve is disassembled, it should be inspected and leak tested as required by ST-GL-HAL-PSL-501 and detailed in Section 1 of the SMEEM. Acceptable leakage rates through the valve are provided in this Work Method. No external leakage is allowed at plug stems or around the adjusting nut. The plug and inserts can be reused if they do not show signs of wear. New seals and O rings shall always be used. CAUTION: The fact that a valve has never leaked in service does not necessarily mean that the inserts do not need to be replaced. The inserts may wash out and cause the valve body to erode before leakage is noted. A planned program of maintenance at specific intervals is the key to keeping downtime and repair cost at a minimum.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 3 of 29

5.1 HSE 5.1.1. Ensure apropiarte PPE is worn and all HSE requirements are met before commencing work. (Global HSE ST-GL-HAL-HSE-0701). 5.1.2. Ensure hand tools are in good condition and are designed for the intended use (Global HSE C4S2) and the work area is free of trip hazards. If working on location, ensure escape, ascending, and descending hazards have been assessed. 5.1.3. Maintain proper housekeeping practices in the work area at all times. 5.1.4. Ensure adequate barriers, markers, risk identifiresrs, lighting or visural control signage is available and used. 5.1.5. Do not attempt to work on a Lo Torc Plug Valve while it is under pressure. 5.2 Preventative Maintenance The most important maintenance activity for Lo Torc® plug valves is regular lubrication with the proper valve lube. The SAP Nos. for valve lubricants for regular fluid service and for CO2 service are listed in Table xxx with other accessories including lubricant guns. Pneumatic lubricant guns are preferred. When lubricating a Lo Torc plug valve, the best practice is to cycle the valve open and closed continuously while pumping in the lubricant. Use a lubricant gun that has a pressure gauge on it, and inject lubricant until the gauge reaches 3,000 to 5,000 psi consistently. Please see Section 6.0 for more information on lubricating the valve. •

Document in the valve log the maintenance that has been performed, including routine lubrication.

Technology recommends frequent lubrication of Lo Torc plug valves. For short-duration jobs, lubrication immediately after the job is probably the best practice, especially when a corrosive fluid has been pumped. This will ensure that any aggressive chemicals remaining in the valve-body recesses will probably be flushed out before having much time to cause detrimental corrosion. For long-duration jobs with multiple stages, lubrication after every two or three stages is a good starting approach until experience helps verify that longer periods would be acceptable. •

Valves should not be greased while they are under pressure as this puts the operator in the RED ZONE.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 4 of 29

Table 1—Lo Torc® Plug-Valve Accessories Description Maintenance repair instructions Lubricant — regular fluid service (K-size stick) Lubricant — CO2 service (K-size stick)

SAP No. 100001838 100001837 101359701

Lubricant fitting — ¼ - in. NPT

100001728a

Insert retaining pin — solid monel (0.312 - in. diameter x 0.62 - in. long)

100015554c

Insert retaining pin — roll pin monel (0.312 - in. diameter x 0.62 - in. long)

100002085c

Lube gun — hand-operated manual — for K-size lube stick

100001778

Lube gun — foot-operated manual — for K-size lube stick

101937818

It is recommended to use a pneumatic lubrication system that requires 100 psi, 100 SCFM air supply.

102055919 with 10 ft hose. 101463608 with 6 ft hose.

Positive stop kit — 1-in. valve assembliesb

101655743

Positive stop kit — 1.75-in. and 2.06-in. valve assembliesb

101656111

a

Use only the listed part number, as it is specifically for high - pressure service (15,000 psi WP). This part is marked DC14Nxx (xx are characters optional with manufacturer). b A positive stop kit prevents plug movement from full open to closed during extreme vibration. Both kits are “bolt on” type — welding or machining is not required. c Insert retaining pins: Historically the roll pin type has been used in 1” and 2” Lo Torc Plug Valves and the solid pin for larger valves. There is a plan to use solid pins for 1” and 2” valves also. Table reference: http://halworld.corp.halliburton.com/internal/PS/pe/contents/Tech_Bulletins/SEQ11011.pdf Additional information on repair kits is available at the Surface Manifold Homepage.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 5 of 29

5.3 Acid and H2S Service Standard service Lo Torc Plug Valves with standard inserts, plug and seals are not to be used for acid jobs because of the potential for plug-stem cracking and failure. This is explained in more detail in HSE Flash Alert 108 and SEQ-11-011. For acid, the Standard Lo Torc Plug Valve must be equipped with a corrosion resistant alloy (CRA) plug, have aluminium bronze inserts, and the seals must be made of Viton. 5.3.1. Notify contractors when they are receiving valves intended for acid service. 5.3.2. Inform contractors of Halliburton’s unique part numbering system for valves originally assembled for acid service so that they can recognize a valve intended for acid service in the event that step one is accidentally skipped. 5.3.3. Provide contractors with the specific repair kit part numbers required for the re-build. 5.3.4. Inspect re-built valves intended for acid service to ensure that they have the correct internal parts prior to releasing them back into service.

•

Reference SEQ-11-011.

Standard Service Lo Torc Plug Valves are not suitable for H2S service and cannot be field converted to H2S service condition. In addition to having a plug made from a CRA, Lo Torc Plug Valves in H2S service also have special valve bodies, adjusting nuts, seals, and end connections (such as wing nuts) suited to H2S service.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 6 of 29

5.4 Plug Identification To quickly identify an acid-service valve, technology recommends locations paint the handle adapter and the wing nut a yellow color (see Figure 1b). Sour-gas service valves can continue to be painted fluorescent green (Figure 1c). For 3-in. valves and larger, the gear operator can be painted yellow because such valves usually do not have a handle adapter.

Figure 1—(a) Standard-service Lo Torc plug valve painted all red, (b) acid-service Lo Torc plug valve painted with a red body and yellow wing and adapter, and (c) sour-gas service Lo Torc plug valve painted fluorescent green. 5.5 Assembling a Lo Torc Plug Valve Detailed step-by-step procedures are provided in Section 6.0 of this work method. •

Assembly should be performed on a clean bench, free of dust and debris that could become trapped on the sealing surfaces of the valve.

•

Caution: Improper assembly of the valve can result in poor valve performance or unsafe operating characteristics.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 7 of 29

5.6 Disassembling a Lo Torc Plug Valve 1. Place valve in a vice. 2. Remove the handle adapter and the two stop collars beneath it. 3. Loosen the adjusting nut with the operating bar. 4. Remove the adjusting nut, the plug and the inserts. If necessary, place a wood block on top of the plug stem and tap downwards. 5. Inspect the valve body, inserts and plug for erosion or pitting. a. Replace inserts and plug only if required. b. Remove the valve from service if the valve body shows signs of erosion or pitting and send for requalification as defined in the SMEEM. 6. Wipe all old lubricant from inside the valve body. 7. Replace the O-rings on the inserts. 8. Replace the O-ring sealing the adjusting nut. 9. Replace the plug-stem packing at the top and bottom of the plug. 10. Reassemble the valve following the procedures in Section 6.0. 5.7 Fixing a Leaking Valve Without Disassembling It Valves can leak either through the valve or at the plug seals around the stem. •

If leaking at the plug seals, the valve needs to be disassembled and the seal replaced.

•

If leaking through the valve, try the following once all of the pressure has been removed from the valve:

1. Lubricate the valve as explained previously, achieving a stable injection pressure of 3,000 – 5,000 psi. 2. Check the zero pressure torque of the plug valve adjusting nut and adjust as necessary with a torque wrench. See the detailed assembly procedure in Section 6.0 for the adjusting nut torque values.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

6.0

Step by Step Valve Assembly Procedures

1.0

A clean workplace is necessary to assemble a proper functioning valve.

2.0

Clean all components to remove old lubricant, foreign material, and corrosion.

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 8 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

3.0

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

A rotary wire brush is useful for cleaning, but a hand held brush will also do the job. • Note: correct PPE including face shield, safety glasses and gloves must be worn.

4.0

Use an air nozzle to thoroughly blow all loose debris out of the cleaned valve components.

• Note: correct PPE including face shield, safety glasses and gloves must be worn.

5.0

Install the adjusting nut o-ring in the groove.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 9 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

6.0

Thoroughly grease the seal cavity in the adjusting nut. Use general purpose type grease (wheel bearing type grease, lithium based grease).

7.0

Install one of the two stem seals in the seal cavity of the adjusting nut. The lips on the seal are positioned so they will face the internal part of the valve assembly. The seal backing ring is positioned away from pressure.

8.0

Open a stick of valve lubricant.

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 10 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

9.0

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Using a small putty knife, pack the valve lubricant into the face groove of the adjusting nut. Ensure that the groove is filled flush with the face on which the putty knife is located.

10.0 Check to ensure that the two insert alignment pins inside the valve body are solidly seated in their drilled holes. If the pins are damaged, pull them and install new pins. •

Note: the roll pin type insert pin is shown in the photograph. A solid pin is also available.

11.0 Lubricate the seal cavity in the body with wheel bearing grease.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 11 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

12.0 Install the stem seal with the lips toward the inside of the valve body and the backing ring toward the outside of the body.

13.0 Spray solvent (rubbing alcohol) on a clean rag or cloth. Use a solvent that will evaporate and leave a clean surface on the valve components.

14.0 Using the solvent soaked cloth, clean all the surfaces of the plug.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 12 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

15.0 Brush wheel bearing grease on the lower stem and angle to ease installation through the stem seal.

16.0 Install the plug lower stem through the seal in the adjusting nut.

17.0 Fully installed plug. Note there will be a small gap between the bottom of the plug large diameter and the face of the adjusting nut.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 13 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

18.0 Note that the large flat washer with the offcenter hole may be slightly concave in shape. By laying the washer on a flat surface you can easily identify the concave side, shown on top in this picture.

19.0 Mark the concave side so it can be positioned toward the outside of the valve assembly. If the flat washer does not exhibit a concave geometry, you do not need to mark it.

20.0 Install the large flat washer (note the orientation of the mark), the lock washer, and the spacer onto the screw.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 14 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

21.0 Carefully turn the plug and adjusting nut over to access the tapped hole on the bottom of the plug. At this point, the plug is still loosely assembled to the adjusting nut, so hold both pieces when turning them over.

22.0 Place the screw, with spacer, flat washer, and lock washer, through the hole in the adjusting nut and start threading the screw into the plug tapped hole.

23.0 Tighten the screw until it is snug. The screw will bottom out onto the spacer, which will project slightly above the near-by surface of the adjusting nut. This enables the plug and screw to turn without dragging on the adjusting nut.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 15 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

24.0 Turn the plug and adjusting nut back over and apply valve lubricant to the plug outside diameter.

25.0 Continue applying valve lubricant until the large OD surface is completely coated.

26.0 Using the solvent and clean rag, wipe all foreign material off the inserts.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 16 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

27.0 Place the insert half against the plug, lining up the flow port holes. The lower lip of the insert also engages a corresponding groove in the adjusting nut to keep it from moving axially once installed.

28.0 Repeat the insert installation procedure for the other insert half.

29.0 Stretch the insert o-ring by hand with about 15 to 20 pounds pull. This facilitates installation of the o-ring into the groove.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 17 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

30.0 Starting at the top (or bottom), install the o-ring into the groove on the insert.

31.0 Continue working the o-ring into the groove until it is fully installed as shown.

32.0 Pack the o-ring groove with valve lubricant, completely filling the groove. This helps hold the o-ring in place for further assembly.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 18 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

33.0 After both o-rings are packed with valve lubricant coat the outside of both insert halves with lubricant. Also apply lubricant to the top of the plug shoulder below the stem.

34.0 A wooden paddle is helpful in spreading the valve lubricant evenly around the outside of the insert halves and on top.

35.0 Lubricate the threads of the valve body with Never-Seez lubricant. SAP 100001855, though this is generally locally purchased.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 19 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

36.0 Wipe a thin coat of valve lubricant into the adjusting nut O-ring. Do not allow lubricant to build up on the OD surface on either side of this O-ring. Excess lubricant may keep the adjusting nut from fully engaging the valve body threads.

37.0 With the valve body positioned open cavity up, gently lower the adjusting nut/plug/insert subassembly into the body. 38.0 Line up the flow port holes of the plug/inserts with the holes in the body so that the alignment pins easily engage the slots in the inserts. You will need a special support for the body to stand on with a central hole large enough for the plug stem to pass through. Note: The insert pin must not be allowed to fit in the gap between the two valve inserts. If this occurs, it will not be possible to open or close the valve properly.

Support for Plug Body Built into Work Bench

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 20 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

39.0 The adjusting nut should easily go to where the threads engage. If it will not do so, then it is likely that the alignment pins are not in the insert grooves.

40.0 Turn the adjusting nut with a bar as shown. If the resistance becomes high and further turning is not possible, then again the alignment pins may be outside of the insert grooves.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 21 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 22 of 29

41.0 Continue turning the adjusting nut until there is only about 2 threads exposed outside the body.

42.0 Place the valve in a vice as shown so the adjusting nut and the plug stem can be accessed.

43.0 Connect a torque wrench to the plug stem. 44.0 Continue tightening the adjusting nut while, at the same time, turning the plug through 90 degrees of rotation. The initial adjustment of the valve is made based on the torque required to turn the plug. The next slide has torque values.

45.0 Plug Torque at Zero Pressure

The torque can vary based on how quickly the plug is turned. At any given setting of the adjusting nut/plug/inserts, turning the plug slowly requires less torque than turning quickly. The torque values listed

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

below are for slow turning, which is defined as 90 degrees of rotation in 4 seconds or more. Valve Torque – Foot-Pounds Size Turning Slowly 1” 15 - 25 1.75” 25 - 35 2” 25 - 35 2-1/2” 35 - 45 3” 45 - 55 4” 55 - 65 46.0 Turn the adjusting nut slowly until the proper torque on the plug is achieved.

47.0 Visually inspect to ensure that the flow holes in the plug, inserts, and body are aligned.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 23 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

48.0 Install new teflon tape on the lubrication fitting.

49.0 Install the lubrication fitting into the ¼-18 NPT port on the body. (Note: The lubrication fitting has been left out until this point. Doing so allows any excess lubricant to be extruded while tightening the adjusting nut.)

50.0 Install two stop collars. Note the orientation in relationship to the mark on the plug stem. This is the open position. The stop collars should be installed so that the plug, viewed straight into the operation stem, is turned clockwise to close and counter-clockwise to open.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 24 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

51.0 Place the handle adapter onto the plug stem. NOTE: The two raised lugs on opposite sides of the handle adapter indicate the position of the plug flow hole (open or closed). In this case, the indication is open. These raised lugs shall be in line with the saw marks on the top of the plug stem.

52.0 Install the screw, lock washer, and large flat washer. Again note the orientation of the large flat washer, with the concave surface outward. Note how the large flat washer (100001060) holds the valve handle adapter in place. The photograph below shows an incorrect washer (it is too small) that was found on a Lo Torc valve.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 25 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

53.0 Tighten the screw snuggly.

54.0 Tighten the hex socket screw on the side of the handle adapter to squeeze the handle adapter onto the plug stem.

55.0 Ensure the valve is open. 56.0 Inspect all fittings and hoses on the pneumatic or manual grease gun. Ensure that there are no cracks, visible leaks, loose fittings, broken gauges or anything else that may affect the operation. 57.0 Ensure the grease fitting on the valve is clean. 58.0 Connect the grease gun with a pressure gauge to the valve.

59.0 Slowly close the valve while injecting lubricant to

• A good indication that the lubricant is packing

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 26 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

build injection pressure. The pressure shall reach between 3000 psi and 5,000 psi and then must stay constant.

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 27 of 29

the valve properly is when lubricant can be seen coming out from around the plug when looking inside the bore of the valve.

60.0 Close the valve until the closed stop is reached. 61.0 Then slowly open the valve to complete one cycle. 62.0 Cycle the valve open – closed four times while pumping lubricant at 3,000 - 5,000 psi. 63.0 After the valve has been cycled four times put the valve back in the open position. Relieve all pressure from the pneumatic grease gun and then disconnect it from the grease fitting on the valve. • Do not attempt to disconnect the grease gun until the pressure is relieved. 64.0 Place the assembled valve on the pressure test fixture and hammer up the wing nut.

65.0 Connect a drip tube to the valve. See Section 1 of the SMEEM for more information on the drip tube. It is made from 1/8” OD tubing.

Confidential – Not for Distribution Printed version of this document is uncontrolled

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

66.0 With the valve half open fill it completely with water to eliminate trapped air. 67.0 Test the valve in the half open position.

68.0 Isolate the valve in a suitable enclosure for personnel protection.

69.0 Apply pressure up to, or slightly above, the rated working pressure staying within the tolerances given in the SMEEM.

Confidential – Not for Distribution Printed version of this document is uncontrolled

Page: 28 of 29

WORK METHOD Title: Maintenance Procedures for a Lo Torc® Plug Valve Region: Function/PSL: Global All PLSs Owner: Approved By: Review/Revision By: Process L. Herndon; I. Blanco HMS Team Assurance Mgr T. Aldridge; M. MacMillan

Halliburton Management System Document Number:

WM-GL-HAL-PSL-503 Review/Revision Date: 22.Oct.2013

Revision No: 1

Page: 29 of 29

70.0 Observe the discharge (atmospheric) side of the valve assembly for leakage. This test cell is arranged so that the discharge side of the valve is piped outside the protective chamber and located for easy viewing. This piping is filled with water so that a drop leaking through the valve will result in a drop coming out the end of the piping.

71.0 Close the valve for the seat test. 72.0 Test the valve from one end at the rated working pressure. 73.0 Test the valve from the other end at the rated working pressure.

74.0 Acceptable Leakage Rates

Valve Size 1” 1.75” 2” 2-1/2” 3” 4”

Acceptable Rate 1 Drop per Minute 2 Drops per Minute 2 Drops per Minute 2-1/2 Drops per Minute 3 Drops per Minute 4 Drops per Minute

Additional information is also available in the Operating and Maintenance instructions that are provided with each Lo Torc Plug Valve. Date Issued October, 2013

Revision No Summary of Key Revisions 1 Original Release To obtain a copy of a previous version of this document, please contact

Confidential – Not for Distribution Printed version of this document is uncontrolled