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Kitz T60S/SF Series Operation Manual

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Document No.：KE-1081-02
Operation Manual
API 6D, 3 piece, Trunnion Mounted Ball Valve
Soft and Metal seated
T60S/SF, UF3TCS Series
T60M/SF, UF3TC6H Series
Thank you for having chosen KITZ products.
For safe and trouble-free function and performance of the
product, ensure to read and understand all items of this manual
before valve mounting and operation.
Keep this manual in a convenient place for your valve
operators' easy access.
For

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Summary of Contents for Kitz T60S/SF Series

  • Page 1 Soft and Metal seated T60S/SF, UF3TCS Series T60M/SF, UF3TC6H Series Thank you for having chosen KITZ products. For safe and trouble-free function and performance of the product, ensure to read and understand all items of this manual before valve mounting and operation.

  • Page 2: Caution And Warning

    Document No.：KE-1081-02 Page:1/76 This manual applies to manual operation of KITZ flanged ends manual operated soft and metal seated API 6D, 3 piece, trunnion mounted ball valve series. CAUTION AND WARNING To ensure safe and trouble-free function and performance, please read all the contents of this manual before handling, transportation, mounting and operation of the valves.
  • Page 3 Document No.：KE-1081-02 Index Page Ⅰ. Construction and Design features ・・・・・・・・・・・・・・・・・・・・・・・・・・・ 1 Ⅱ. Shipping, Handling and Storage ・・・・・・・・・・・・・・・・・・・・・・・・・・・ 7 Ⅲ. Valve installation ・・・・・・・・・・・・・・・・・・・・・・・・・・ 10 Ⅳ. Valve operation ・・・・・・・・・・・・・・・・・・・・・・・・・ 15 Ⅴ Periodic inspection ・・・・・・・・・・・・・・・・・・・・・・・・・・ 21 Ⅵ Disassembly and Reassembly Soft seat ・・・・・・・・・・・・・・・・・・・・・・・・・・ 26 Ⅶ.
  • Page 4 Document No.：KE-1081-02 Page:1/76 Ⅰ. Construction and Design feature...
  • Page 5 Document No.：KE-1081-02 Page:2/76 Ⅰ． Construction and Design features Construction and Design features 1.1 Construction and parts names are as illustrated next page. 1.2 The valve can be operated by rotating the stem by 90 degrees to open or shut. 1.3 The valve is designed for use in the full open or full closed position only. 1.4 The valve for size up to NPS4 for full bore and up to NPS6 for reduced bore have two stems, at the top and bottom, supporting the ball, the design of which gives the valve less impact on operation torque.
  • Page 6 Document No.：KE-1081-02 Page:3/76 Ⅰ． Construction and Design features 1.7 Typical construction for Soft seated valve. Stem Packing (Graphite) O-ring with back up ring Gasket (Graphite) Gasket (Graphite) Packing (Graphite) O-ring with back up ring Seat spring Ball Ball seat Seat retainer Gasket (Graphite) End plate This illustration shows typical construction for size up to NPS4.
  • Page 7 Document No.：KE-1081-02 Page:4/76 Ⅰ． Construction and Design features 1.8 Typical construction for Metal seated valve. Stem Coned disc spring Packing (Graphite) Gasket (Graphite) Packing (Graphite) Seat spring Ball Ball seat Retainer Gland Gasket (Graphite) End plate This illustration shows typical construction for size up to NPS4. Stem Coned disc spring Packing (Graphite)

  • Page 8: Design Features

    Document No.：KE-1081-02 Page:5/76 Ⅰ． Construction and Design features 2. Design features 2.1 Double block and bleed function. The ball seat is provided on the upstream and downstream, which independently function to seal the media. Consequently the valve bore and the body cavity are isolated from each other when the valve is fully opened or shut so that the residue within the body cavity may be disposed through the drain port.
  • Page 9 Document No.：KE-1081-02 Page:6/76 Ⅰ． Construction and Design features 2.3 Fire safe design When the ball seats are decomposed or deteriorated by a fire, the edge of the metal seat retainer preloaded by the seat spring comes into contact with the ball to shut off the fluid to minimize internal leakage through the valve bore.
  • Page 10 Document No.：KE-1081-02 Page:7/76 Ⅱ. Shipping, Handling and Storage...
  • Page 11 Document No.：KE-1081-02 Page:8/76 Ⅱ. Shipping, Handling and Storage 1. Shipping and Handling Valves 1.1 Care for Shipping and Handling Valves. ● Keep off the valve lifting area to prevent injuries caused by the unsecured valves. Unstable stacking may also result in personal injuries. ●...
  • Page 12 Document No.：KE-1081-02 Page:9/76 Ⅱ. Shipping, Handling and Storage 2. Storage 2.1 Care for Valve storage ● DO NOT store valves in the corrosive environment, which may cause corrosion from the valve threaded areas. ● DO NOT remove protection covers until installation. They prevent any foreign objects from intruding valves.
  • Page 13 Document No.：KE-1081-02 Page:10/76 Ⅲ. Valve installation...
  • Page 14 Document No.：KE-1081-02 Page:11/76 Ⅲ. Valve installation 1. Care for Valve installation. ● Check the valve specifications with the identification plate or tag and the relevant Catalogue, to ensure that the exact valves specified in your piping arrangement plan was provided. The service fluid, pressure and temperature determine the compatibility of sealing materials and ball seat materials.
  • Page 15 Document No.：KE-1081-02 Page:12/76 Ⅲ. Valve installation 2. Care for Piping. ● Keep off the valve lifting area to prevent injuries caused by the unsecured valves. ● Care should be taken to keep hands clear of valves while placing them between pipe flanges. ●...
  • Page 16 Document No.：KE-1081-02 Page:13/76 Ⅲ. Valve installation 2.1 Check the following items before installation of the valves. 2.1.1 The service conditions should be within the range of the relevant valve specification. 2.1.2 Valve flanges should correspond with pipe flanges. 2.1.3 Gasket contact surfaces of pipe and valve flanges must be free from scratches or any other damages.
  • Page 17 Document No.：KE-1081-02 Page:14/76 Ⅲ. Valve installation Valve installation procedure 3.1 Pipes and valves should be accurately aligned. 3.2 The appropriate length should be kept between pipe flanges for the valve face-to-face dimensions including the gasket thickness. 3.3 Place the valve between the pipe flanges. Insert bolts through the bottom bolt holes and tighten them lightly.
  • Page 18 Document No.：KE-1081-02 Page:15/76 Ⅳ. Valve operation...
  • Page 19 Document No.：KE-1081-02 Page:16/76 Ⅳ. Valve operation 1. Lever type operator 1.1 The lever handle is directly mounted on the valve stem. 1.2 Rotate the lever handle clockwise by 90° to shut the valve and counterclockwise by 90° to open the valve. <SHUT>...
  • Page 20 Document No.：KE-1081-02 Page:17/76 Ⅳ. Valve operation Gear operator 2.1 The gear operator shall be mounted on the valve. 2.2 There should be an arrow or letter to the gearbox surface for indicate the wheel rotation direction to open or shut the valves. 2.3 Hand wheel operation forces differ in the valve opening position, fluid pressure value and /or fluid temperature value.
  • Page 21 Document No.：KE-1081-02 Page:18/76 Ⅳ. Valve operation Care for valve operation ● DO NOT apply too excessive force to operate the valves by using a pipe or hand wheel rotating tools. ● Never loosen bolts or nuts used in the gland, gland plate, bonnet, cap flanges and end flanges of pressurized valves.
  • Page 22 Document No.：KE-1081-02 Page:19/76 Ⅳ. Valve operation Daily valve inspection during operation In order to operate valves safely and satisfactorily, it is very important to inspect daily. Here are the items essential to your daily inspection. Inspection Areas to be Inspection Remedial measure items inspected...
  • Page 23 Document No.：KE-1081-02 Page:20/76 Ⅳ. Valve operation Troubleshooting and corrective measures ● Operators should take protective measures at all times to prevent direct exposure to the media including wearing protective goggles, gloves and safety shoes a minimum. ● More stringent protective measures may be necessary when handling toxic, inflammable or corrosive media.
  • Page 24 Document No.：KE-1081-02 Page:21/76 Ⅴ. Periodic inspection...
  • Page 25 Document No.：KE-1081-02 Page:22/76 Ⅴ. Periodic inspection Periodic inspection 1.1 A periodic inspection with valves mounted to pipelines is recommended at least once a year. 1.2 Ensure the smooth operation and safety of valves during inspection. 1.3 Inspection items and methods are same as daily inspection. See Chapter Ⅳ...
  • Page 26 Document No.：KE-1081-02 Page:23/76 Ⅴ. Periodic inspection Inspection and maintenance In case pipelines or facilities where valves are installed are shut down for the pipeline inspection, provide the valves with the body and seat pressure test and operation test, if needed. If any defect is detected, disassemble the valves for further inspection.
  • Page 27 Document No.：KE-1081-02 Page:24/76 Ⅴ. Periodic inspection 2.2 Disassembly Refer to Chapter Ⅵ and VII for disassembly procedure. 2.3 Inspection items for disassembly inspection Refer to the table below for the items, methods, judgment and remedial measures of disassembly inspection. Inspection Inspection Detection Method...
  • Page 28 Document No.：KE-1081-02 Page:25/76 Ⅴ. Periodic inspection 2.4 Reassembly Refer to Chapter Ⅵ and VII for reassembly procedure. 2.5 Valve test and inspection Confirm the following items for test and inspection before and after maintenance operation. 2.5.1 Operation test (1) Check smooth operation of valves without galling or sticking of internal valve components.
  • Page 29 Document No.：KE-1081-02 Page:26/76 Ⅵ. Disassembly and Reassembly Soft seat...
  • Page 30 Document No.：KE-1081-02 Page:27/76 Ⅵ. Disassembly and Reassembly (Soft seat) Disassembly procedures for soft seal 1.1 Care for disassembly. ● Operator should take an appropriate caution for not being exposed to the fluid or caching fire. ● Wear protective items such as goggles, gloves and working boots. ●...
  • Page 31 Document No.：KE-1081-02 Page:28/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.3 Disassembly sequence for size up to NPS4 for full bore valve and up to NPS6 for reduced bore. 1.3.1 Depressurizing the valve interior. 1.3.2 Disassembly of the any operator 1.3.3 Disassembly of the gland plate 1.3.4 Disassembly of the bonnet 1.3.5 Disassembly of the cap 1.3.6 Disassembly of the end plate...
  • Page 32 Document No.：KE-1081-02 Page:29/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.4 Disassembly sequence for size up to NPS4 for full bore valve and up to NPS6 for reduced bore.（Refer to Cross-sectional assembly drawing of page 45.） 1.4.1 Before disassembly, partially open the valve and enough to reduce the internal pressure trapped inside of the valve to a safe level enough.
  • Page 33 Document No.：KE-1081-02 Page:30/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.4.5 Place the valve on the floor with the one side of cap flange facing to the floor. Mark the Body (1) and the Cap (2) position for proper position. Then loosen the Cap nuts (33A) of the upper Cap (2) evenly and alternately in a star pattern until the Seat springs (143) lose their loading force.
  • Page 34 Document No.：KE-1081-02 Page:31/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.4.6 Remove Cover nuts (33B), and remove End plate (147) together with other adjacent components (O-ring(45E)). (Refer to the Figure “B” below.) If it is difficult to remove the End plate (147), make use of the threaded taps on the End plate (147).
  • Page 35 Document No.：KE-1081-02 Page:32/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.4.8 Remove the Stem (3) together with Thrust washer (47B) through the inside of the Body (1). Some of the ball valves, depending on their size and nominal pressure, are provided with Stem washer (31). Remove also the Stem washer (31) together with Stem (3), if provided.
  • Page 36 Document No.：KE-1081-02 Page:33/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.5 Disassembly sequence for size NPS6 and larger for full bore valve and for size NPS8 and larger for reduced bore. 1.5.1 Depressurizing the valve interior. 1.5.2 Disassembly of the operator 1.5.3 Disassembly of the gland plate 1.5.4 Disassembly of the bonnet 1.5.5 Disassembly of the stem...
  • Page 37 Document No.：KE-1081-02 Page:34/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.6 Disassembly sequence for size NPS6 and larger for full bore valve and for size NPS8 and larger for reduced bore. (Refer to Cross-sectional assembly drawing of page 47.) 1.6.1 Before disassembly, partially open the valve and reduce the internal pressure trapped inside of the valve to a safe level enough.
  • Page 38 Document No.：KE-1081-02 Page:35/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.6.5 Place the valve on the floor with the one side of cap flange facing to the floor. 1. Mark the Body (1) and the Cap (2) position for proper position. Then loosen the Cap nuts (33) of the upper cap evenly and alternately in a star pattern until the Seat springs (143) lose their loading force.
  • Page 39 Document No.：KE-1081-02 Page:36/76 Ⅵ. Disassembly and Reassembly (Soft seat) 1.6.7 Remove the Body. Mark the Body (1) and the Cap (2) position for proper position. Then loosen the Cap nuts (33) of the lower cap evenly. Remove the Cap nuts (33) of the lower cap (2). Some of the ball valves, depending on their size and nominal pressure, are provided with Lifting Lugs (822) mounted with flange bolting.
  • Page 40 Document No.：KE-1081-02 Page:37/76 Ⅵ. Disassembly and Reassembly (Soft seat) Reassembly procedures 2.1 Care for reassembly ● Wear protective items such as goggles, gloves and working boots. ● No open flame or smoking should be allowed in the work area. ● Pay attention not to catch fingers during reassembly. ●...
  • Page 41 Document No.：KE-1081-02 Page:38/76 Ⅵ. Disassembly and Reassembly (Soft seat) 2.2.5 Assemble the valve in a dust-free area. 2.2.6 Take care not to damage flange surfaces, ball, ball seat, stem and all internal machined parts. 2.2.7 Ensure mating the marks given before disassembly. 2.2.8 Keep in mind that all threads should be securely tightened.
  • Page 42 Document No.：KE-1081-02 Page:39/76 Ⅵ. Disassembly and Reassembly (Soft seat) 2.3 Reassembly sequence for size up to NPS4 for full bore valve and up to NPS6 for reduced bore. 2.3.1 Reassembly of the cap bolts 2.3.2 Reassembly of the stem 2.3.3 Reassembly of the ball 2.3.4 Reassembly of cover bolts and the end plate...
  • Page 43 Document No.：KE-1081-02 Page:40/76 Ⅵ. Disassembly and Reassembly (Soft seat) 2.4 Reassembly procedure for size up to NPS4 for full bore valve and up to NPS6 for reduced bore. 2.4.1 Place the Cap bolts (35A) to both side of the Body (1), tightening them securely. 2.4.2 Place the Stem bearing (67B) to the Body (1) and place the Stem (3) together with Thrust washer (47B) and Stem washer (31), if provided.
  • Page 44 Document No.：KE-1081-02 Page:41/76 Ⅵ. Disassembly and Reassembly (Soft seat) 2.4.9 Place the body assembly on the floor with the one side of Cap bolts (33) facing to the floor. Turn the Stem (3) and adjust ball ports to the fully close position. Set the Gasket (19A) on the Body (1).
  • Page 45 Document No.：KE-1081-02 Page:42/76 Ⅵ. Disassembly and Reassembly (Soft seat) 2.5 Reassembly sequence for size NPS6 and larger for full bore valve and NPS8 and larger for reduced bore. 2.5.1 Reassembly of the cap bolts 2.5.2 Reassembly of the seat retainer assembly 2.5.3 Reassembly of the seat retainer assembly on the caps 2.5.4...
  • Page 46 Document No.：KE-1081-02 Page:43/76 Ⅵ. Disassembly and Reassembly (Soft seat) 2.6 Reassembly procedure for size NPS6 and larger for full bore valve and NPS8 and larger for reduced bore. 2.6.1 Place the Cap bolts (35A) to both side of the Body (1), tightening them securely.
  • Page 47 Document No.：KE-1081-02 Page:44/76 Ⅵ. Disassembly and Reassembly (Soft seat) 2.6.10 Lift the other Cap (2) with a crane and lower it slowly on the Body (1). When lift the Cap (2), hold the seat retainer by hand or tapes to prevent detachment from the cap.
  • Page 48 Document No.：KE-1081-02 Page:45/76 Ⅵ. Disassembly and Reassembly (Soft seat) Cross-sectional assembly drawing This drawing represents only a typical construction of the valve for size up to NPS4. Please refer to the approved drawing for assembly and disassembly.

  • Page 49: Parts Name

    Document No.：KE-1081-02 Page:46/76 Ⅵ. Disassembly and Reassembly (Soft seat) PARTS NAME Body Stem Ball Gland packing Set pin Name plate Gasket Gasket Gasket Ball seat Cap nut Cover nut Cap bolt Cover bolt Bonnet bolt Gland bolt O ring O ring Thrust washer Thrust washer Curl bearing (Ball)
  • Page 50 Document No.：KE-1081-02 Page:47/76 Ⅵ. Disassembly and Reassembly (Soft seat) This drawing represents only a typical construction of the valve for size NPS6 and larger. Please refer to the approved drawing for assembly and disassembly.
  • Page 51 Document No.：KE-1081-02 Page:48/76 Ⅵ. Disassembly and Reassembly (Soft seat) PARTS NAME Body Stem Ball Gland packing Set pin Set pin Name plate Gasket Gasket Ball seat Cap nut Cap bolt Bonnet bolt Gland bolt O ring O ring Thrust washer Thrust washer Curl bearing (Ball) Stem bearing...
  • Page 52 Document No.：KE-1081-02 Page:49/76 Ⅵ. Disassembly and Reassembly (Soft seat) Exploded view drawing This drawing represents only a typical construction of the valve for size up to NPS4. Please refer to the approved drawing for assembly and disassembly.
  • Page 53 Document No.：KE-1081-02 Page:50/76 Ⅵ. Disassembly and Reassembly (Soft seat) This drawing represents only a typical construction of the valve for size NPS6 and larger. Please refer to the approved drawing for assembly and disassembly.
  • Page 54 Document No.：KE-1081-02 Page:51/76 Ⅶ. Disassembly and Reassembly Metal seat...
  • Page 55 Document No.：KE-1081-02 Page:52/76 Ⅶ. Disassembly and Reassembly (Metal seat) Disassembly procedures for Metal seal 1.1 Care for disassembly. ● Operator should take an appropriate caution for not being exposed to the fluid or caching fire. ● Wear protective items such as goggles, gloves and working boots. ●...
  • Page 56 Document No.：KE-1081-02 Page:53/76 Ⅶ. Disassembly and Reassembly (Metal seat) Disassembly sequence for size up to NPS4 for full bore valve and up to NPS6 for reduced bore.. 1.3.1 Depressurizing the valve interior. 1.3.2 Disassembly of the any operator. 1.3.3 Disassembly of the gland plate 1.3.4 Disassembly of the bonnet 1.3.5 Disassembly of the cap 1.3.6 Disassembly of the end plate.
  • Page 57 Document No.：KE-1081-02 Page:54/76 Ⅶ. Disassembly and Reassembly (Metal seat) 1.4 Disassembly sequence for size up to NPS4 for full bore valve and up to NPS6 for reduced bore.（Refer to Cross-sectional assembly drawing of page 69.） 1.4.1 Before disassembly, partially open the valve and enough to reduce the internal pressure trapped inside of the valve to a safe level enough.
  • Page 58 Document No.：KE-1081-02 Page:55/76 Ⅶ. Disassembly and Reassembly (Metal seat) Lift out the upper Cap (2) slowly, confirming that the Ball seat (30) and its assembly, which has been housed with the Cap (2). When the ball seat assembly is separated from the ball, hold the ball seat assembly by tapes to prevent detachment from the cap.
  • Page 59 Document No.：KE-1081-02 Page:56/76 Ⅶ. Disassembly and Reassembly (Metal seat) 1.4.8 Remove the Stem (3) together with Thrust washer (47B) through the inside of the Body (1). For side entry stem type, remove the stem through body port as the figure “D” below.
  • Page 60 Document No.：KE-1081-02 Page:57/76 Ⅶ. Disassembly and Reassembly (Metal seat) 1.5 Disassembly sequence for size NPS6 and larger for full bore valve and for size NPS8 and larger for reduced bore. 1.5.1 Depressurizing the valve interior. 1.5.2 Disassembly of the operator. 1.5.3 Disassembly of the gland plate 1.5.4 Disassembly of the bonnet 1.5.5 Disassembly of the stem.
  • Page 61 Document No.：KE-1081-02 Page:58/76 Ⅶ. Disassembly and Reassembly (Metal seat) Disassembly sequence for size NPS6 and larger for full bore valve and for size NPS8 and larger for reduced bore. (Refer to Cross-sectional assembly drawing of page 71.) 1.6.1 Before disassembly, partially open the valve and reduce the internal pressure trapped inside of the valve to a safe level enough.
  • Page 62 Document No.：KE-1081-02 Page:59/76 Ⅶ. Disassembly and Reassembly (Metal seat) 1.6.5 Place the valve on the floor with the one side of cap flange facing to the floor. Mark the Body (1) and the Cap (2) position for proper position. Then loosen the Cap nuts (33) of the upper cap evenly and alternately in a star pattern until the Seat springs (143) lose their loading force.
  • Page 63 Document No.：KE-1081-02 Page:60/76 Ⅶ. Disassembly and Reassembly (Metal seat) 1.6.7 Remove the Body . Mark the Body (1) and the Cap (2) position for proper position. Then loosen the Cap nuts (33) of the lower cap evenly. Remove the Cap nuts (33) of the lower cap (2). Some of the ball valves, depending on their size and nominal pressure, are provided with Lifting lugs (822) mounted with flange bolting.
  • Page 64 Document No.：KE-1081-02 Page:61/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2. Reassembly procedures 2.1 Care for reassembly ● Wear protective items such as goggles, gloves and working boots. ● No open flame or smoking should be allowed in the work area. ●...
  • Page 65 Document No.：KE-1081-02 Page:62/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2.2.5 Assemble the valve in a dust-free area. 2.2.6 Take care not to damage flange surfaces, ball, ball seat, stem and all internal machined parts. 2.2.7 Ensure mating the marks given before disassembly 2.2.8 Keep in mind that all threads should be securely tightened.
  • Page 66 Document No.：KE-1081-02 Page:63/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2.3 Reassembly sequence for size up to NPS4 for full bore valve and up to NPS6 for reduced bore. 2.3.1 Reassembly of the cap bolts. 2.3.2 Reassembly of the stem. 2.3.3 Reassembly of the ball 2.3.4 Reassembly of cover bolts and the end plate.
  • Page 67 Document No.：KE-1081-02 Page:64/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2.4 Reassembly procedure for size up to NPS4 for full bore valve and up to NPS6 for reduced bore. 2.4.1 Place the Cap bolts (35A) to both side of the Body (1), tightening them securely. 2.4.2 Place the Stem bearing (67B) to the Body (1) and place the Stem (3) together with Thrust washer (47B).
  • Page 68 Document No.：KE-1081-02 Page:65/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2.4.8 Place the body assembly on the floor with the one side of Cap bolts (35A) facing to the floor. 1. Turn the Stem (3) and adjust ball ports to the fully closed position. 2.
  • Page 69 Document No.：KE-1081-02 Page:66/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2.5 Reassembly sequence for size NPS6 and larger for full bore valve and for size NPS8 and larger for reduced bore. 2.5.1 Reassembly of the cap bolts 2.5.2 Reassembly of some parts on cap and ball seat 2.5.3 Reassembly of the seat retainer assembly on the caps 2.5.4...
  • Page 70 Document No.：KE-1081-02 Page:67/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2.6 Reassembly procedure for size NPS6 and larger for full bore valve and for size NPS8 and larger for reduced bore. 2.6.1 Place the Cap bolts (35A) to both side of the Body (1), tightening them securely.
  • Page 71 Document No.：KE-1081-02 Page:68/76 Ⅶ. Disassembly and Reassembly (Metal seat) 2.6.10 Place Cap nuts (33) and tighten them. Evenly tighten the Cap nuts (33) alternately and gradually in a star pattern. Some of the ball valves, depending on their size and nominal pressure, are provided with lifting lugs (822).
  • Page 72 Document No.：KE-1081-02 Page:69/76 Ⅶ. Disassembly and Reassembly (Metal seat) Cross-sectional assembly drawing This drawing represents only a typical construction of size up to NPS4 for full bore. Please refer to the approved drawing for assembly and disassembly.

  • Page 73: Parts Name

    Document No.：KE-1081-02 Page:70/76 Ⅶ. Disassembly and Reassembly (Metal seat) PARTS NAME Body Stem Ball Gland Gland packing Set pin Name plate Gasket Gasket Gasket Ball seat Cap nut Cover nut Cap bolt Cover bolt Bonnet bolt Gland bolt Thrust washer Thrust washer Curl bearing (Ball) Stem bearing...
  • Page 74 Document No.：KE-1081-02 Page:71/76 Ⅶ. Disassembly and Reassembly (Metal seat) This drawing represents only a typical construction of the valve for size NPS6 and larger. Please refer to the approved drawing for assembly and disassembly.
  • Page 75 Document No.：KE-1081-02 Page:72/76 Ⅶ. Disassembly and Reassembly (Metal seat) PARTS NAME Body Stem Ball Gland Gland packing Set pin Set pin Name plate Gasket Gasket Ball seat Cap nut Cap bolt Bonnet bolt Gland bolt Thrust washer Thrust washer Curl bearing (Ball) Stem bearing Plug Vent valve...
  • Page 76 Document No.：KE-1081-02 Page:73/76 Ⅶ. Disassembly and Reassembly (Metal seat) 4. Exploded view drawing This drawing represents only a typical construction of the valve for size up to NPS4. Please refer to the approved drawing for assembly and disassembly.
  • Page 77 Document No.：KE-1081-02 Page:74/76 Ⅶ. Disassembly and Reassembly (Metal seat) This drawing represents only a typical construction of the valve for size NPS6 and larger. Please refer to the approved drawing for assembly and disassembly.

  • Page 78: Ⅷ. Trouble Shooting

    Document No.：KE-1081-02 Page:75/76 Ⅷ. Trouble shooting...
  • Page 79 Document No.：KE-1081-02 Page:76/76 Ⅷ. Trouble shooting Defect Possible cause Remedial measure Disturbed valve Foreign objects may have choked Disassemble and inspect the valve operation up the valve body cavity and stock components. around the ball seats. Excessive valve torque Foreign objects may have stuck to Remove the foreign objects and the stem.

This manual is also suitable for:

Uf3tcs seriesT60m/sf seriesUf3tc6h series