Metso NELES XH Series Installation Maintenance And Operating Instructions Download | Manualshive

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NELES®
TRUNNION MOUNTED BALL VALVE,
FULL BORE

Series XH

Installation, Maintenance and
Operating Instructions

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Summary of Contents for NELES XH Series

Page 1: ...1 XH 70 en 12 2015 NELES TRUNNION MOUNTED BALL VALVE FULL BORE Series XH Installation Maintenance and Operating Instructions ...

Page 2: ...the pipeline 5 3 3 Actuator 6 3 4 Commissioning 6 4 SERVICING 6 4 1 General 6 4 2 Changing the gland packing while the valve is in the pipeline 6 4 3 Repair of a jammed or stuck valve while it is in the pipeline 7 4 4 Detaching the actuator 7 4 5 Removing the valve from the pipeline 8 4 6 Dismantling the valve 8 4 7 Inspection of removed parts 8 4 8 Replacing parts 8 4 9 Assembly 8 5 TESTING THE V...

Page 3: ...ball valves are specially designed for demanding throttling and shut off service with high pressure differentials 1 3 Markings Body markings are stamped on the body see Fig 2 The identification plate Fig 3 is attached to the flange Identification plate markings are 1 Body material 2 Shaft material 3 Trim material 4 Seat material 5 Max and min operating temperature 6 Max shut off pressure different...

Page 4: ...moving a pressurized valve will result in uncontrolled pressure release Always isolate the relevant part of the pipeline release the pressure from the valve and remove the medium before dismantling the valve Be aware of the type of medium involved Protect people and the environment from any harmful or poisonous sub stances Make sure that no medium can enter the pipeline during valve maintenance Fa...

Page 5: ...ommend installing the valve with the actuator on the underneath side because dirt in the pipeline may then enter the body cavity and damage the gland packing The posi tion to be avoided is shown in Fig 7 It may be necessary to firmly support the pipeline in order to protect the valve from excess stress Sufficient support will also reduce pipeline vibration and thus ensures proper functioning of th...

Page 6: ...r to the parts list and the exploded view of the valve in Section 10 if not otherwise stated 4 2 Changing the gland packing while the valve is in the pipeline In graphite gland packings tightness is ensured by contact between the gland follower and the packing rings The gland packing 69 must be changed if leakage occurs even after the hex nuts 18 have been tightened Make sure that the valve is not...

Page 7: ... it may be more practical to remove the entire package at the same time Close and detach the actuator pressure supply pipe line and remove control cables Unscrew the bracket screws Detach the actuator The actuator can be removed by hand or with a special tool made for this purpose The tool can be ordered from the manufacturer see Section 8 Tools Remove the bracket Fig 10 Glandpacking Valve size Sh...

Page 8: ... 69 from the bonnet 8 Remove the body gasket 65 and the bonnet gasket 66 4 7 Inspection of removed parts Clean removed parts See if the shaft 5 or bearings 70 99 are damaged See if the ball 3 or seats 7 are damaged scratched by examining them under bright light The ball and the seat can be replaced if necessary See if the body joint sealing surfaces are damaged 4 8 Replacing parts We recommend tha...

Page 9: ...lange holes are aligned acc to the mark made during the dismatling Take care not to damage the body gasket and the seat 7 in the body cap Fasten the body nuts 16 Tighten the nuts gradually always switching toother sideof the valve aftereverynut The recommended torques is given in Table 2 The flange facesmustinevencontactwitheachother Mount the key 10 Cycle the valve slowly a couple of times to ins...

Page 10: ...s the ball flow opening position Keep fingers out of the flow bore There is no need for stop screw adjustment if the actuator is re installed in the same valve Drive actuator piston to the housing end open position Turn the actuator by hand until the valve is in the open position Fasten the actuator in this position as explained above Check the stop screw thread tightness An O ring is used for sea...

Page 11: ...er name of the part and quantity required This information can be found from the identification plate or documents Table 3 Possible malfunctions Symptom Possible fault Actions Leakage through a closed valve Wrong stop screw adjustment of the actuator Adjust the stop screw for closed position Damaged ball surface Turn the ball by 180 Damaged seat s Replace seat s Ball cannot move freely Clean the i...

Page 12: ...1 Ball 3 5 1 Shaft 3 7 1 or 2 Ball seat 2 8 1 Bonnet 9A 1 Gland 9B 1 Sleeve 10 1 Key 3 12 Stud 13 Stud 14 Stud 16 Hexagon nut 17 Hexagon nut 18 Hexagon nut 42 1 Retainer ring 62 1 or 2 Seat spring 2 63 1 or 2 O ring B R 1 1 or 2 Back seal F 1 64 1 or 2 Back up ring B R 1 65 1 Body gasket 1 66 1 Bonnet gasket 1 69 Packing ring 1 70 3 Thrust bearing 3 89 2 Trunnion plate 91 2 Thrust bearing 3 99 2 T...

Page 13: ...10 423 1474 1195 38 10 280 165 181 8 5020 5610 20 500 1321 549 855 1114 471 1508 1194 44 45 315 180 199 5 6530 7390 24 600 1549 643 1040 1300 570 1720 1350 50 80 370 220 242 4 11000 12000 XHG Class 900 Ring Type Joint 02 50 371 145 215 225 49 353 308 6 35 46 25 27 8 130 140 03 80 384 146 240 285 74 434 383 6 35 51 30 32 9 140 160 04 100 460 175 290 348 100 541 462 12 70 80 45 50 4 230 250 06 150 6...

Page 14: ...SME B 16 5 Ra 3 2 6 3 standard Z Ring joint ASME B16 5 5 CONSTRUCTION APPLICATION TA Standard construction Double seated Live loaded packing 6 BODY MATERIAL AB ASTM A350 LF2 CS S6 ASTM A351 gr CF8M SS 7 BALL COATING STEM MATERIAL RX 316SS Chrome carbide XM 19 or 17 4PH SL 316SS NiBo XM 19 or 17 4PH 8 SEAT TYPE B Metal solid proof F Metal bellows R Metal firesafe service 9 SEAT MATERIAL N Type 316 ...

Page 15: ...15 ...

Page 16: ...087 101 Sorocaba São Paulo Brazil Tel 55 15 2102 9700 Fax 55 15 2102 9748 Asia Pacific Haw Par Centre 06 01 180 Clemenceau Avenue Singapore 239922 Tel 65 6511 1011 Fax 65 6250 0830 China 11 F China Youth Plaza No 19 North Rd of East 3rd Ring Rd Chaoyang District Beijing 100020 China Tel 86 10 6566 6600 Fax 86 10 6566 2583 Middle East Roundabout 8 Unit AB 07 P O Box 17175 Jebel Ali Freezone Dubai U...

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