KTM Manuals: KTM Series E01 Trunnion Mounted Ball Valve, EN Manuals & Guides

KTM SERIES E01 TRUNNION MOUNTED BALL VALVE
INSTALLATION AND MAINTENANCE MANUAL
Before installation these instructions must be fully read and understood
1 INTRODUCTION
1.1 This product is suitable for gas and liquid
media pipelines and regulating devices, with the advantages of small flow resistance, quick switch, flexible quick opening and closing, long life, being safe and reliable.
1.2 Range of application: oil, chemical, petroleum refining, natural gas, metallurgy, paper making, pharmaceutical, instrument and others.
2 RANGE OF APPLICATION
The manual applies to the high-pressure trunnion mounted ball valve listed in the table.
Model Oracle model code Pressure class Size range (DN) Full bore
E0125 E01 ASME Class 150 50-200 E0126 E01 ASME Class 300 50-200 E0105 E01 ASME Class 150 250-600 E0106 E01 ASME Class 300 250-600 E0108 E01 ASME Class 600 50-500 E0109 E01 ASME Class 900 40-500 E0110 E01 ASME Class 1500 40-250
Reduced bore
E0821 E01 ASME Class 150 80-250 E0822 E01 ASME Class 300 80-250 E0801 E01 ASME Class 150 300-650 E0802 E01 ASME Class 300 300-650 E0804 E01 ASME Class 600 80-600 E0807 E01 ASME Class 900 50-600
© 2017 Emerson. All Rights Reserved.
KTM SERIES E01 TRUNNION MOUNTED BALL VALVE
INSTALLATION AND MAINTENANCE MANUAL
3 KEY PARAMETERS
3.1 Technical parameters
Maximum operating pressure Model Pressure class Full bore
E0125 ASME Class 150 275 (2) E0126 ASME Class 300 720 (5) E0105 ASME Class 150 275 (2) E0106 ASME Class 300 720 (5) E0108 ASME Class 600 1440 (10) E0109 ASME Class 900 2160 (15) E0110 ASME Class 1500 3600 (25)
Reduced bore
E0821/E0801 ASME Class 150 275 (2) E0822/E0802 ASME Class 300 720 (5) E0804 ASME Class 600 1440 (10) E0807 ASME Class 900 2160 (15)
rating value psig (MPa)
4 PRODUCT DISASSEMBLY, ASSEMBLY AND TEST METHOD
4.1 Valve exploded view (Varies among different models)
FIGURE 1
Connect to actuator
• The rating value of the maximum operating pressure in the table below corresponds to the value at temperatures from -29°C to 38°C. Its unit is psig. The conversion between psig and MPa is: 1 psig - 0.006984757 MPa
• Other pressure classes shall be in accordance to the relevant standard
PARTS
No. Name
1 Body 2 Cap 3 Ball 4 Upper stem 5 Lower stem 6* Seat 7* Seat retainer 8 Spring 9* O-ring 10* Gasket 11* Upper stem bearing 12* Lower stem bearing 13* Gland packing 14* Thrust bearing 15 Gland 16 Gland flange 17 Packing adaptor 18 Setting ring 19 Thrust washer 20 Lower cover 21 Drain plug 22* Shim 23 Stud 24 Nut 25 Key 26 Pin
NOTE
* Standard repair kit inclusions
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KTM SERIES E01 TRUNNION MOUNTED BALL VALVE
INSTALLATION AND MAINTENANCE MANUAL
4.2 Disassembly
4.2.1
NOTES
Pay attention to the following points when disassembling the valve:
• Fully relieve the valve cavity. Even if the pressure of the piping has been discharged and there is still the possibility of residual pressure left in the valve. The valve must be opened and closed several times to fully release the pressure in the cavity. After making sure there is no residual pressure, the valve can be removed from the pipeline.
• If the media is harmful for humans, or is inflammable and explosive, make sure that no residual media is left inside of the valve (especially in the cavity). Then fully inject water inside to clean; after making sure there is no residual media, remove it from the pipeline; then fully open and close the valve several times.
4.2.2 Disassembly method
• Rotate the stem (4) clockwise, positioning the ball to the 'off' position.
• Remove the lever (or gearbox), remove the elastic ring and stopper.
• Loosen the gland bolt (23), remove the gland flange (16) and gland (15).
• Loosen the lower cover bolt (23), remove the lower cover (20), lower cover gasket (10), adjusting shim (22), thrust bearing (12), pull out the lower stem (5), remove the gasket (O-ring) and the lower stem bearing
• Loosen the flange coupling screw, remove the flange, flange gasket, adjusting shim, thrust bearing (11).
• Pull out upper stem (4), remove O-ring (9) or gland packing (13), upper stem bearing (11).
• Loosen the coupling screw, separate the body and cap, remove the ball (3), seat (6), seat retainer (7), seat spring (8), flat or spiral springs, junction gasket (10) (O-ring) from the body. Be careful not to collide nor drop the ball and seat, to avoid damaging the sealing surface.
• Remove the seat, seat holder, seat seal washer, flat or spiral springs.
• If the valve has a manual operator, then during the disassembling, the manual operator shall be removed first.
Once all the above is complete, the disassembly can be considered to be finished.
4.3 Assembly
After removing all parts from the valve, wipe the dust and clean it. After removing the dust and grime, ensure that there is no scratch on surface sealing of the ball and seat and stem assembly, replace any defective or obviously worn parts; no scratches should be on the junction and on the surface of the seats of the body and cap; Assemble in the following order:
• Put the spring, seat (seat holder, O-ring), ball, anti-static spring into the body, put gasket into the locating recess of the body.
• Put the ball into the body.
• Mount O-ring (if any) on the stem, then put stem bearing on the stem.
• Insert upper stem into the upper stem hole, the stem top is in 'off' position, then insert it into the ball.
• Put the spring, seat (seat holder, O-ring) into the left body, combine the surfaces between body and cap.
• Tighten the nuts uniformly and symmetrically.
• Mount the cap gasket (O-ring), mount lower stem bearing on lower stem, insert lower stem into lower stem hole.
• Assemble upper stem in place, then mount thrust bearing, gland packing or O-ring, gasket, flange, gland on stem, gland flange in order, screw in gland bolts and tighten. Screw the bolts by hand, then use the tool to tighten accordingly.
NOTE
When tightening the bolts, do not tightly tighten one by one, this will potentially misalign the gland flange and gland packing, and may cause leakage. The right way should be, slightly tighten one, then do another one, and so forth, until the gland flange and gland are compressed to ensure the uniform and aligned compression. Turn the stem to ensure a smooth rotation. Please refer to gland flange and center flange tightening torque matrix tables in Section 5.
• Mount the stopper, resilient retainer, lever; if the valve has manual operator, then mount it last. This completes the assembly process.
4.4 Test method: The test should be done according to the test pressure and holding time of the relevant standards. For the pressure test, we recommend the following methods:
• Shell test: close both ends of the valve, leaving it in the half open state, inject the media (liquid) with the required pressure, after holding for some time, check the junction, gland packing and shell for leakage.
• Liquid high-pressure closure test: close both ends of the valve, leaving it in the half open position, fill it with the media (liquid) with the required pressure from one end, close the valve, making the cavity be open to the atmosphere, check leak detection port for media leakage.
• Gas low-pressure closure test: close both ends of the valve, leaving it in the half open state, provide with the gas with required pressure from one end, close the valve, making the cavity be open to atmosphere, check leak detection port for gas within the stipulated time. Judging if valve qualified or not should be based on relevant standards.
• No visible leakage is allowed for strength test, low-pressure gas seal test and high­pressure seal test within stipulated time (standardized materials seat).
• Seal the valve with the sealing plate after pressure test; if it is a water pressure test, dry residual moisture content on the surface, regarding carbon steel valve, paint, anti-rust and oil then. Install sealing plate.
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