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Metso NELDISC L4 Series, Инструкции по установке, обслуживанию и эксплуатации

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2 L6 70 en

7

3.2.1

Valve insulation

If necessary, the valve may be insulated. Insulation must not
continue above the upper level of the valve body, see Fig-
ure 9.    

3.3

Actuator

When installing the actuator on the valve, make sure that
the valve package functions properly. See instructions for
installing in Section 6.

Observe the space needed for removal of the actuator.

The upright position is recommended for the actuator cyl-
inder.

The actuator must not touch the pipeline, because pipeline
vibration may damage it or interfere with its operation.

In some cases, e.g. when a large-size actuator is used or
when the pipeline vibrates heavily, supporting the actuator
is recommended. Please contact Metso’s Automation busi-
ness for further information.

4

COMMISSIONING

Ensure that no dirt or foreign objects are left inside the
valve or pipeline. Flush the pipeline carefully. Keep the
valve 30–40° open during flushing.

When starting up the pump, ensure that the valve in the
pipeline is closed or, at the very most, 20° open.

A waterhammer, which follows the start-up of high-capac-
ity pumps, creates a torque peak in the disc. This can dam-
age the pin connection between disc and shaft when the
valve is 30–90° open.

The packing construction is live loaded. If the leakage
occurs, re-tighten the gland nuts but don't exceed the val-
ues in the Tables 7, 8 and 9 by 50 % or do not fully compress
the disc springs.

5

MAINTENANCE

5.1

Maintenance general

Although Metso’s Neles valves are designed to work under
severe conditions, proper preventative maintenance can
significantly help to prevent unplanned downtime and in
real terms reduce the total cost of ownership. Metso recom-
mends inspecting the valves at least every five (5) years. The
inspection and maintenance interval depends on the actual
application and process 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 replaced.
Time in storage should be included in the inspection inter-
val.

Maintenance can be performed as presented below. Fo
maintenance assistance, please contact your local Metso
office. The part numbers in the text refer to the exploded
view and to the parts list in Section 9, unless otherwise
stated.

Table 5.

Stud bolt dimensions (mm), L4F/D
ASME Class 600 flanges

Size
NPS

Thread

K

øH

mm

L

L1

L2

Length

Qty

 Length

Qty

04

7/8-UNC

25,4

210

8

-

-

-

06

1-8UN

28,4

250

12

-

-

-

08

1 1/8-8UN

31,7

290

12

-

-

-

10

1 1/4-8UN

-

340

12

160

8

40

12

1 1/4-8UN

-

410

16

170

8

45

14

1 3/8-8UN

-

440

16

170

8

44

16

1 1/2-8UN

-

490

16

200

8

60

20

1 5/8-8UN

-

540

20

210

8

48

24

1 7/8-8UN

-

610

20

230

8

60

28*

2-8UN

-

680

24

250

8

60

32*

2 1/4-8UN

-

710

28

230

8

55

36*

2 1/2-8UN

-

770

28

260

8

60

*) flanges acc. to ASME B16.47 series A

Table 6.

Stud bolt dimensions (mm), L6F
ASME Class 600 flanges. Both flanges included

Size
NPS

Thread

K

L

L1

Length

Qty

 Length

Qty

06

1 UNC

165

8

135

4

08

1 1/8 - 8UN

190

16

140

8

10

1 1/4 - 8UN

215

20

160

12

12

1 1/4 - 8UN

220

24

160

16

14

1 3/8 - 8UN

235

24

170

16

16

1 1/2 - 8UN

255

24

190

16

18

1 5/8 - 8UN

275

24

210

16

24

1 7/8 - 8UN

330

32

230

16

28

2 - 8UN

364

48

257

84

30*

2 - 8UN

370

40

260

16

36*

2 1/2 - 8UN

410

40

280

16

*) flanges acc. to ASME B16.47 series A

Fig. 9

Insulation of the valve

Insulation limit

CAUTION:
Observe the safety precautions mentioned in Section
1.7 before maintenance!

CAUTION:
When handling the valve or the valve package as a
whole, bear in mind the weight of the valve or the
entire package.

CAUTION:
For safety reasons the retaining plates MUST always
be installed according to Section 5.3.                 

NOTE:

When sending goods to the manufacturer for repair, do
not  disassemble them. Clean the valve carefully and flush
the valve internals. 

For safety reasons, inform the manufacturer of the type  of
medium  used  in  the  valve  (include  material  safety  data
sheets (MSDS)).

NOTE:

In order to ensure safe and effective operation, always use
original  spare parts to make sure that the valve functions
as intended.

Содержание NELDISC L4 Series

Страница 1: ...2 L6 70 en 10 2017 NELDISC Metal seated high performance triple eccentric disc valve Series L6 L4 Installation Maintenance and Operating Instructions ...

Страница 2: ...TION 4 3 1 General 4 3 2 Mounting into the pipeline 5 3 3 Actuator 7 4 COMMISSIONING 7 5 MAINTENANCE 7 5 1 Maintenance general 7 5 2 Removing the valve from the pipeline 8 5 3 Replacing the gland packing 8 5 4 Valve leakage 9 5 5 Replacing the seat ring 10 5 6 Replacing the disc shafts and bearings 11 5 7 Assembling the valve 11 6 DETACHING AND INSTALLING THE ACTUATOR 12 6 1 General 12 6 2 Detachi...

Страница 3: ...e manufacturing parts list no 10 Pressure class 1 4 Technical specifications Type L6 Flanged reduced bore metal seated triple eccentric disc valve L4 Wafer reduced bore metal seated triple eccentric disc valve Pressure class L6C ASME Class 150 L6D ASME Class 300 L6F Body and trim ASME Class 600 L6F D Body ASME Class 600 Trim ASME Class 300 L4F D Body ASME Class 600 Trim ASME Class 300 Possible fla...

Страница 4: ...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 Failure to do this may result in damage or personal injury CAUTION Beware of the discs cutting movement Keep hands other parts of the body tools and othe...

Страница 5: ...ly after a pipe elbow the valve shaft must be directed toward the centre point of the pipe see Fig 5 This is especially important when the valve is used as a control valve The valve shaft of a valve mounted after the centrifugal pump must be perpendicular to the pump shaft see Fig 6 When thus installed the valve discs will be more evenly loaded and vibrations otherwise possible in the intermedi at...

Страница 6: ... 8 32 1 1 2 8UN 260 48 200 8 34 1 1 2 8UN 260 56 200 8 36 1 1 2 8UN 280 56 210 8 40 1 1 2 8UN 280 64 200 8 42 1 1 2 8UN 290 56 210 16 48 1 1 2 8UN 310 72 240 16 52 1 3 4 8UN 350 72 280 16 56 1 3 4 8UN 360 80 290 16 flanges acc to ASME B16 47 series A Table 3 Stud bolt dimensions mm L6D ASME Class 300 flanges Both flanges included Size NPS Thread K L L1 Length Qty Length Qty 04 3 4 UNC 115 12 100 4...

Страница 7: ...our local Metso experts During this periodic inspection the parts detailed in the Spare Part Set should be replaced Time in storage should be included in the inspection inter val Maintenance can be performed as presented below Fo maintenance assistance please contact your local Metso office The part numbers in the text refer to the exploded view and to the parts list in Section 9 unless otherwise ...

Страница 8: ...ement is about 80 It is not necessary to fully close or open the valve during the operation Unfasten the nuts and disc springs Measure the height h1 of the disc springs and use these values as a basis when defining the final height of the springs as compressed condition Re install the disc springs and tighten the nuts with the tool Tighten the nuts until the set value of com pression h1 h2 of disc...

Страница 9: ... with the tool Tighten the nuts until the set value of com pression h1 h2 of disc springs is achieved see Table 9 If the leakage still occurs when the valve is pressur ized re tighten the nuts but don t exceed the value in the Table 9 by 50 or do not fully compress the disc springs 5 4 Valve leakage Valve leakage is not always caused by a damaged seat ring or disc The reason can also be that the d...

Страница 10: ...at ring The screw heads must be below the flange surface in lug type valves Check the position between the seat ring and the disc The valve closes clockwise see Fig 14 Mount the actuator into the valve Adjust the closed position limit and check the open position limit see Section 6 5 5 2 L6F Remove the clamp ring 2 and the old seat ring 4 Clean up graphite from the body groove Polish the contact s...

Страница 11: ...a larger pin size File off any burrs from the shafts The bearings for the valves N U and H constructions are cobalt alloy bushings which are mounted into the body together with the shafts Mount the bearing into the shaft Spray a thin layer of dry lubricating fluid e g Molykote 321R or equiva lent into the inside surface of the bushing and the shaft bearing groove Press the bushing with a tight eni...

Страница 12: ...tor It is highly recommended to use a suitable bushing from the tool set H061544 between the tightening screw I and drive shaft The bushing dimensions are given in Table 12 Detach the actuator finally from the valve after the screws that attach the actuator to the valve have been removed 6 4 Installing the B1 series actuator Turn the valve to the closed position before mount ing the actuator Clean...

Страница 13: ...haft according to Fig 22 Cylindri cal pins III are inserted in the bushing slots and these must be directed into the corresponding slots in the actuator during tightening Before the installa tion of the bushing and the tightening screw impu rities such as old threadlocking material have to be removed from the threads of the tightening screw and Loctite 225 or similar Threadlock have to be carefull...

Страница 14: ...carried out improperly Finally the extreme rotation positions of the valve are adjusted with the adjustment screws at the ends of the actuator The location of the screws for adjust ing the close and open positions of the valve are marked on the actuator housing see Fig 25 See Section 6 7 6 6 Detaching and installing other actuator types See actuator s manual for details 6 7 Stop screw adjustment 6...

Страница 15: ...fing the stop screw After adjusting check the adjusting margin through the air connection hole The piston must not touch the cylinder end If necessary increase the margin by loosening the bracket screws and turning the actua tor clockwise An extra long screw is needed for opening angles 80 6 7 7 Spring return cylinder actuator B1JA Spring to open The actuator being unpressurized the valve is open ...

Страница 16: ...special tools are needed for servicing the valve How ever we recommend an extractor tool ID code table in actuator s IMO for removing the actuator from the valve The tool can be ordered from the manufacturer 8 ORDERING SPARE PARTS When ordering spare parts always include the following information type code sales order number serial number stamped on a valve body number of the parts list part numbe...

Страница 17: ... 81 5 QP4C 4 3 62 M07 26 19 11 4 2 61 7 QP5C 0 8 12 3 5 51 M10 27 20 12 3 3 48 0 2 3 3 8 55 sprin g 3 2 46 0 8 12 4 6 68 10 13 2 1 30 12 3 8 55 sprin g 4 5 65 16 1 6 23 0 9 13 3 1 45 0 5 7 2 6 38 1 3 19 3 8 55 14 1 6 23 1 15 3 2 46 300 12 500 370 12 5 5 80 sprin g 4 6 67 4 58 sprin g 5 5 80 7 QP5C 0 1 1 4 1 59 M10 43 32 13 3 5 51 10 M12 44 32 16 2 8 41 0 5 7 3 6 52 0 3 43 1 14 4 3 62 12 17 1 8 26 ...

Страница 18: ...2 4 7 68 sprin g 4 2 61 3 6 52 0 3 4 4 8 70 M25 244 180 322 0 6 9 0 2 3 40 2 3 33 50 1 2 17 900 36 9400 6930 322 0 3 4 sprin g 40 3 3 48 950 38 9400 6930 50 1 7 25 1000 40 12600 9290 322 sprin g 40 4 4 64 50 2 3 33 1200 48 16400 12090 40 5 7 83 50 2 9 42 502 1 3 19 1400 56 25600 18880 50 4 8 70 502 2 29 1600 64 35000 25800 50 6 6 96 502 2 7 39 1700 68 22000 16200 50 4 2 61 502 1 7 25 1800 72 22000...

Страница 19: ...3 4 4 1 59 16 1 3 19 0 9 13 3 43 0 6 9 2 3 33 1 5 22 3 7 54 14 250 10 460 340 11 6 4 93 5 QPC5 0 3 4 3 9 57 M10 40 29 12 5 72 sprin g 4 4 64 3 8 55 0 1 1 5 3 77 7 M12 38 28 13 3 2 46 10 M14 28 21 16 2 5 36 0 5 7 3 5 51 0 1 1 2 9 42 1 14 4 2 61 12 5 9 86 sprin g 5 5 80 17 1 7 25 14 2 4 35 0 6 9 3 6 52 20 1 4 20 1 14 2 9 42 0 6 9 2 3 33 1 5 22 3 5 51 300 12 800 590 13 5 6 81 7 M14 49 36 16 4 4 64 sp...

Страница 20: ...22 0 9 13 3 43 0 5 7 2 4 35 130 50 0 8 12 502 0 3 4 700 28 6700 4940 32 4 8 70 sprin g 4 3 62 3 6 52 0 2 3 4 9 71 M25 244 180 322 0 6 9 0 2 3 750 30 40 2 3 33 800 32 9800 7230 322 0 2 3 sprin g 40 3 4 49 50 1 8 26 900 36 12000 8850 322 sprin g 40 4 2 61 50 2 2 32 1000 40 19000 14010 50 3 4 49 502 1 5 22 1050 42 1100 44 1200 48 1250 50 1400 56 38000 28000 50 7 2 104 502 2 9 42 1500 60 602 2 29 Spri...

Страница 21: ...8 12 4 3 62 M10 27 20 12 3 3 48 0 4 6 4 6 67 0 1 1 3 8 55 0 8 12 5 6 81 10 13 2 1 30 12 3 8 55 0 2 3 5 3 77 16 1 7 25 0 7 10 3 9 57 0 5 7 3 0 44 1 2 17 4 8 69 14 250 10 600 11 8 3 120 5 QPC5 0 2 3 5 1 74 M12 21 16 12 6 5 94 5 7 83 4 9 71 0 1 1 6 9 100 7 M14 36 27 13 4 2 61 10 16 3 3 48 0 4 6 4 6 67 0 1 1 3 8 55 0 8 12 5 5 80 12 7 7 112 7 2 104 17 2 2 32 14 3 1 45 0 5 7 4 7 68 20 1 8 26 0 8 12 3 8 ...

Страница 22: ... lbf ft 600 24 5330 3930 32 3 9 57 0 3 4 4 7 68 3 9 57 0 7 10 5 5 80 M25 147 108 40 1 8 26 322 0 7 10 3 9 57 0 4 6 3 1 45 700 28 8710 6422 32 6 2 90 5 6 81 4 7 68 0 2 3 6 4 93 322 0 5 7 0 2 3 750 30 40 3 0 44 800 32 12740 9390 322 0 2 3 40 4 4 64 50 2 3 33 900 36 15600 11495 40 5 5 80 50 2 9 42 Spring spring torque not adequete to reach tIghtness according to ISO 5208 Rate D BS 6755 Part 1 Rate D ...

Страница 23: ...49 32 0 7 10 1 2 17 2 2 32 0 8 12 1 5 22 1 7 25 2 7 39 350 14 1250 920 17 4 5 65 M15 66 49 20 3 7 54 0 2 3 3 7 54 sprin g 3 1 45 0 6 9 4 2 61 M16 44 32 25 1 9 28 0 8 12 3 1 45 0 4 6 2 5 36 1 3 19 3 5 51 M25 45 33 32 1 0 15 1 1 16 2 8 49 0 8 12 2 1 30 1 6 23 3 3 48 40 0 5 7 400 16 1600 1180 20 4 7 68 sprin g 4 1 59 sprin g 3 5 51 0 3 4 4 5 65 M16 56 41 25 2 5 36 0 6 9 3 2 46 0 3 4 2 6 38 1 1 16 3 7...

Страница 24: ... 6 67 sprin g 4 1 59 sprin g 3 4 49 0 4 6 4 6 67 322 0 7 10 3 3 48 0 3 4 2 6 38 1 2 17 3 8 55 40 2 2 32 50 1 1 16 502 0 4 6 700 750 28 30 8000 5890 322 0 4 6 3 6 52 0 1 1 2 9 42 0 9 13 4 0 58 40 3 0 44 50 1 5 22 800 32 322 40 50 502 900 36 50 502 602 752 Spring spring torque not adequete to reach tightness according to ISO 5208 Rate D BS 6755 Part 1 Rate D ANSI FCI 70 2 Class V IEC 534 4 or MSS SP...

Страница 25: ... 16 1 17 20 9 42 24 25 13 11 14 3 14 12 2 27 26a 4 19 2 15 18 15 30 44 26b Item Qty Description Spare part category 1 1 Body 2 1 Clamp ring 3 1 Disc 3 4 1 Seat ring 2 9 1 Gland 10 1 Blind flange 11 1 Drive shaft 3 12 1 Shaft 3 13 1 Key 3 14 3 Pin 3 15 1 Bearing 3 16 1 Bearing 3 17 2 Thrust bearing 18 1 Gasket 1 19 1 Body seal 1 20 1 set Gland packing 1 21 1 Spring washer 22 1 Anti extrusion ring 2...

Страница 26: ...l parts from the categories 1 2 and 3 10 16 1 20 9a 25 42 13 11 14 3 14 12 2 44 4 27 15 18 15 19 24 9b 26b 26a Item Qty Description Spare part category 1 1 Body 2 1 Clamp ring 3 1 Disc 3 4 1 Seat ring 2 9a 1 Casting gland 9b 1 Compression ring 10 1 Blind flange 11 1 Drive shaft 3 12 1 Shaft 3 13 1 Key 3 14 3 Pin 3 15 4 Bearing 3 16 2 Bearing 3 18 1 Gasket 1 19 1 Body seal 1 20 1 set Gland packing ...

Страница 27: ...00 135 475 148 9 31 75 225 1475 360 135 6900 1 1 4 7 8 NPS Dimensions in lb U V A A1 øB øB1 øH øD C E øO R P M N K S T 4 5 00 2 91 9 13 6 18 7 50 0 75 3 54 10 75 0 59 4 13 0 67 0 19 0 98 9 76 2 76 55 M10 M8 5 5 51 3 15 10 12 7 31 8 50 0 91 5 31 12 09 0 79 4 92 0 87 0 19 1 38 10 71 3 54 75 M12 M8 6 5 51 3 11 11 81 8 50 9 50 0 91 5 31 12 99 0 79 4 92 0 87 0 19 1 38 11 61 3 54 88 M12 M8 8 5 98 3 25 1...

Страница 28: ...E øO R P M N K S T 4 5 00 2 91 10 12 6 19 7 87 0 91 3 54 10 75 0 59 4 13 0 67 0 19 0 98 9 76 2 76 75 M10 M8 5 5 51 3 15 11 14 7 31 9 25 0 91 4 72 12 09 0 79 4 92 0 87 0 19 1 38 10 71 3 54 110 M12 M8 6 5 51 3 11 12 64 8 50 10 63 0 91 5 31 12 99 0 79 4 92 0 87 0 19 1 38 11 61 3 54 132 M12 M8 8 5 98 3 15 15 12 10 62 13 00 1 02 6 50 14 49 0 98 5 35 1 09 0 25 1 81 12 68 4 33 1 26 198 M12 M10 10 6 50 3 ...

Страница 29: ...60 135 2770 1 1 4 1 1 4 NPS Dimensions in lb U V A A1 øB øB1 øH øD C E øO R P M N K S T 4 7 48 4 33 10 75 6 19 8 50 1 02 4 33 10 63 0 59 4 92 0 67 0 19 0 98 9 65 4 33 1 26 99 3 8 3 8 6 8 27 4 92 14 02 8 50 11 50 1 14 5 91 12 40 0 79 4 53 0 89 0 19 1 38 11 02 4 33 1 26 198 1 2 3 8 8 9 06 6 97 16 54 12 13 13 75 1 26 8 86 14 80 0 98 5 75 1 09 0 25 1 81 12 99 4 33 1 26 330 1 2 1 2 10 9 84 5 71 20 00 1...

Страница 30: ...1 250 400 160 3150 M3 M36 190 6 79 5 NPS Dimensions in lb U V X Y A A1 ØB ØB1 ØH ØD C E K ØO R P M N S T 6 8 27 4 68 13 98 8 50 11 50 1 12 8 50 16 28 14 27 1 18 6 33 1 31 0 25 2 01 5 12 1 38 227 M12 M12 8 9 06 6 19 16 54 10 63 13 75 1 26 10 08 18 03 15 75 1 38 7 01 1 54 0 38 2 28 6 30 1 57 326 M16 M12 10 9 84 5 71 20 08 12 75 17 00 1 38 12 20 20 87 17 72 1 77 7 87 2 01 0 50 3 15 6 30 1 57 595 M16 ...

Страница 31: ...685 1195 135 475 148 9 31 75 225 360 135 1 1 4 1 1625 Size Dimensions in UNC Weight lb NPS Di A A1 øB øB1 C E O R P M N S T U V 04 3 2 52 1 02 10 83 6 19 5 31 10 63 0 59 4 92 0 67 0 19 0 98 4 33 1 26 1 2 3 8 37 06 5 2 99 1 18 13 98 8 50 7 48 13 19 0 79 5 31 0 87 0 19 1 38 4 33 1 26 1 2 3 8 66 08 6 3 50 1 42 16 54 10 63 8 86 15 20 0 98 5 75 1 09 0 25 1 81 4 33 1 26 1 2 1 2 143 10 8 4 49 1 93 20 08 ...

Страница 32: ...150 1660 194 595 3 4 446 B1C50 610 1350 1970 242 690 1 830 Type Dimensions mm NPT kg X G F V J B1J B1JA8 135 420 560 43 279 3 8 17 B1J B1JA10 175 490 650 51 290 3 8 30 B1J B1JA12 215 620 800 65 316 1 2 57 B1J B1JA16 265 760 990 78 351 1 2 100 B1J B1JA20 395 935 1200 97 358 3 4 175 B1J B1JA25 505 1200 1530 121 448 3 4 350 B1J B1JA32 540 1410 1830 153 525 1 671 Type Dimensions in NPT lb X G F V J B1...

Страница 33: ...sign in size range 28 80 cl 150 cl 300 and 4 36 L6F D Tmax 425 C 800 F shaft bearings surfaces chrome plated bearings NITRONIC 60 not NACE bearings cobalt based alloy NACE body and blind flange gaskets graphite clamp ring screws Gr 660 NACE bare shaft valve ATEX II 2 G c H or 1H NACE High temperature tmax 600 C 1112 F bearing surfaces of shafts cobalt based alloy bearings cobalt based alloy body a...

Страница 34: ...34 2 L6 70 en ...

Страница 35: ...2 L6 70 en 35 ...

Страница 36: ... Sorocaba São Paulo Brazil Tel 55 15 2102 9700 Fax 55 15 2102 9748 Asia Pacific 238B Thomson Road 17 01 Novena Square Tower B Singapore 307685 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 Unite...

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