1
XH 70
en
• 4
/2020
NELES®
TRUNNION MOUNTED BALL VALVE,
FULL BORE
Series XH
Installation, Maintenance andOperating Instructions
Страница 1: ...1 XH 70 en 4 2020 NELES TRUNNION MOUNTED BALL VALVE FULL BORE Series XH Installation Maintenance and Operating Instructions...
Страница 2: ...peline 5 3 3 Actuator 6 3 4 Commissioning 6 4 MAINTENANCE 6 4 1 Maintenance 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...
Страница 3: ...f 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 Bod...
Страница 4: ...ing or removing 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 disma...
Страница 5: ...t recommend 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...
Страница 6: ...ess condition The inspection and maintenance intervals can be specified together with your local Metso experts During this periodic inspection the parts detailed in the Spare Part Set should be replac...
Страница 7: ...in the Table 1 by 50 or do not fully compress the disc springs Table 1 Tightening of gland packing 4 3 Repair of a jammed or stuck valve while it is in the pipeline Jamming may be due to the ball 3 a...
Страница 8: ...ion plates 89 and bearings 91 99 out of the body 1 Handle the ball carefully and place it on a soft surface Remove the seat 7 from the body 1 Remove the trunnion plates 89 from the hubs of the ball Re...
Страница 9: ...d the body 1 See that the flange 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...
Страница 10: ...indicates 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 ho...
Страница 11: ...ommended action Leakage through a closed valve Wrong stop screw adjustment of the actuator Adjust the stop screw for closed position Faulty zero setting of the positioner Adjust the positioner Damaged...
Страница 12: ...odycap 3 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 s...
Страница 13: ...5 1010 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 Clas...
Страница 14: ...ME Class 900 4 END CONNECTION STYLE W Raised face ASME 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 TZ BAM t...
Страница 15: ...1 XH 70 en 15...
Страница 16: ...atu 2 PO Box 1220 00100 Helsinki Finland Tel 358 20 484 100 http contact metso com Neles Finland Inc Vanha Porvoontie 229 P O Box 304 FI 01301 Vantaa Finland Tel 358 20 483 150 Fax 358 20 483 151 www...
