Mesto Neles XH Series Installation Maintenance And Operating Instructions Download Page 12

12

1 XH 70 en

10

EXPLODED VIEW AND PARTS LIST

Spare part (Spare Part Set): Recommended soft parts, always needed for the repair. Delivered as a set.
Spare part category 2: Parts for replacing of the seat. Available also as a set.
Spare part category 3: Parts for replacing of the closing element.
Spares for the full overhaul: All parts from the categories 1, 2 and 3.

Item

Qty

Description

Spare part category  

 1 

Body  

 2 

Bodycap  

 3 

Ball 

3

 5 

Shaft 

3

 7 

1 or 2 

Ball seat  

 8 

Bonnet  

 9A 

Gland  

 9B 

Sleeve  

 10 

Key  

3  

 12  

Stud  

 13  

Stud  

 14  

Stud  

 16  

Hexagon nut  

 17  

Hexagon nut  

 18  

Hexagon nut  

 42 

Retainer ring  

 62 

1 or 2 

Seat spring

2

 63 

1 or 2

O-ring (B,R)  

1

1 or 2 

Back seal (F)  

 64 

1 or 2 

Back-up ring (B,R) 

1  

 65 

Body gasket 

1  

 66 

Bonnet gasket  

1  

 69  

Packing ring  

1  

 70 

Thrust bearing  

3  

 89 

Trunnion plate  

 91 

Thrust bearing  

3  

 99 

Trunnion bearing  

3  

 129 

1 or 2 

Ring (B,R) 

2

 130 

1 or 2 

Backseal (B,R) 

1

 150  

Disc spring set  

150

18

130

129

16

62

2

65

64

3

89

91

99

63

12

1

13

70

10

5

66

8

17

69

42

9A

9B

14

70

62

129

130 64

7

91

89

99

7

63

Summary of Contents for Neles XH Series

Page 1: ...1 XH 70 en 4 2020 NELES TRUNNION MOUNTED BALL VALVE FULL BORE Series XH Installation Maintenance and Operating Instructions...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 15: ...1 XH 70 en 15...

Page 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...

Reviews: