Metso Neldisc L1 Series Installation, Maintenance And Operation Instructions Download | Manualshive

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NELDISC®
Metal seated high performance
triple eccentric disc valve

Series L1 and L2

Installation, Maintenance and
Operating Instructions

2 L1 71

en • 10

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Summary of Contents for Neldisc L1 Series

Page 1: ...NELDISC Metal seated high performance triple eccentric disc valve Series L1 and L2 Installation Maintenance and Operating Instructions 2 L1 71 en 10 2017 ...

Page 2: ...disposal 3 1 8 Safety precautions 4 2 TRANSPORTATION RECEPTION AND STORAGE 4 3 INSTALLATION 4 3 1 General 4 3 2 Mounting into the pipeline 4 3 3 Actuator 7 4 COMMISSIONING 7 5 MAINTENANCE 7 5 1 Maintenance general 7 5 2 Removing the valve from the pipeline 7 5 3 Replacing the gland packing 8 5 4 Valve leakage 8 5 5 Replacing the seat ring 9 5 6 Replacing the disc shafts and bearings 9 5 7 Assembli...

Page 3: ...ric disc valve Pressure class Body L1C L2C ANSI 150 PN 25 L1D L2D ANSI 300 PN 40 Trim L1C L2C ANSI 150 L1D L2D ANSI 300 Temperature range 200 600 C for ambient temperatures 600 C please contact the manufacturer Flow direction Free Dimensions See Section 10 Weights See Section 10 1 5 Valve approvals The valve meets the requirements of BS 6755 Part 2 1987 and API 607 Third Edition November 1985 on f...

Page 4: ...y cause damage and lead to uncontrolled pressure release Damage or personal injury may result CAUTION Do not dismantle the valve or remove it from the pipe line while the valve is pressurized Dismantling 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: ...ergy supply the valve will open unexpectedly due to pre stressed spring package This may cause significant harm to people and material around the valve In valves with certain nominal sizes some flange bolts do not pass the valve body The valve body is thus equipped with grooves holes or threads see Section 3 2 1 Ensure that the disc can turn to the open position after pre liminary tightening of th...

Page 6: ...00 8 220 170 130 40 1 5 8 8 UN 28 640 8 240 190 150 40 Valve type A Class 300 PN 40 PN 25 Thread Through studs Body mounted studs Through studs Body mounted studs Through studs Body mounted studs Qty L3 Qty L L1 L2 S Thread Qty L3 Qty L L1 L2 S Thread Qty L3 Qty L L1 L2 S L1D18 180 1 1 4 8UN 20 400 8 150 113 113 32 M36 16 430 8 170 129 129 36 L1D20 200 1 1 4 8UN 20 400 8 150 104 5 106 38 M39 16 46...

Page 7: ...eri odic inspection the parts detailed in the Spare Part Set should be replaced Time in storage should be included in the inspection interval Maintenance can be performed as presented below For 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 5 2 Removing the valve from t...

Page 8: ... see Table 5 If the leakage still occurs when the valve is pressur ized re tighten the nuts but don t exceed the values in the Table 5 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 disc is not in the closed position Check the position of the actuator relative to the valve The screw...

Page 9: ...screw heads must be below the flange surface Check the position between the seat ring and the disc The valve closes clockwise see Fig 13 Mount the actuator into the valve Adjust the closed position limit and check the open position limit see Section 6 4 5 6 Replacingthedisc shaftsandbearings 5 6 1 Disassemblingthevalve The pin connection of the disc must be opened by drilling for changing the disc...

Page 10: ...hat the shaft bores are aligned with the bores in the disc Protect the disc see Fig 16 Press the shafts into the disc drillings Align the pin holes The shaft 11 position against the disc must be according to Fig 13 Support the disc well in a horizontal position during mounting of the pins Push the new pins into the holes and press them in a press to final form see Fig 19 Use a smaller tool than th...

Page 11: ...ally that the actuator is correctly posi tioned relative to the valve Tighten all the fastening screws as tightly as possible Adjust the stop screws to the closed position see Section 6 4 The opening angle in a control valve is usually lim ited by a bolt to 80 The opening angle of a shut off valve is 90 When a shaft extension is required the sizing of the shaft extension must be discussed with the...

Page 12: ...rew until it touches the linkage then turn back 1 4 turn and lock up with Loctite 225 6 4 6 Electricoperator Instructions for adjustment are given in a separate leaflet code D304568 which is available from the manufacturer 6 4 7 Spring returncylinderactuatorB1J Spring to close Before mounting the cylinder screw in the closed position stop screw completely The table overleaf indicates spring when t...

Page 13: ...long screw is needed for opening angles 80 7 TOOLS No special tools are needed for servicing the valve However we recommend an extractor for removing the actuator from the valve The tool can be ordered from the manufacturer Extractor tools Actuator Series B1C B1J 8 ORDERING SPARE PARTS When ordering spare parts always include the following information type code sales order number serial number sta...

Page 14: ...0 48 25600 18880 50 4 8 70 502 2 29 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 SP72 1970 Adjust the supply pressure regulator to the pressure below Do not exceed given value DN SIZE Mc BC and BJ SIZE BC pc BJ pc BJA pc BJK pc BJKA pc BJV pc BJVA pc Q P actuator Spring to close Spring to open Manual ...

Page 15: ...from the categories 1 2 and 3 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 18 1 Gasket 1 19 1 Body seal 1 20 1 set Gland packing 1 24 2 Stud 25 2 Hexagon nut 26 Hexagon screw 27 Hexagon socket screw 28 1 Lifting eye bolt DN 600 29 1 Identifi...

Page 16: ...23 104 8 156 550 36 900 241 105 1010 660 1060 330 120 1 1 4 3 4 105 395 25 4 116 2 180 710 40 1000 300 130 1120 715 1090 330 120 1 1 4 3 4 120 330 31 75 133 8 205 950 Size Dimensions mm U UNC V UNC Dimensions mm Weight kg in DN A A1 B C E S T O R M P N 18 450 180 90 565 410 655 230 90 1 5 8 70 250 19 05 78 2 119 245 20 500 200 100 625 465 705 230 90 1 5 8 85 250 22 23 94 7 146 305 24 600 240 120 7...

Page 17: ...71 en 17 L1C M L1C M øB K J V F G øZ Type F G J V øZ kg M07 196 152 58 39 160 3 M10 297 239 67 52 200 5 M12 357 282 81 67 315 10 M14 435 345 94 90 400 18 M15 532 406 106 123 500 31 M16 642 466 127 154 600 45 ...

Page 18: ...96 870 585 1330 910 1655 395 350 870 153 3 4 740 1685 L1C 30 B1C40 750 229 96 870 585 1660 1150 1780 505 365 940 194 3 4 955 1825 L1C 30 B1C50 750 229 96 870 585 1970 1350 1880 610 415 990 242 1 1330 L1C 32 B1C32 800 241 101 910 600 1330 910 1725 395 350 925 153 3 4 820 1755 L1C 32 B1C40 800 241 101 910 600 1660 1150 1865 505 365 1010 194 3 4 1035 1910 L1C 32 B1C50 800 241 101 910 600 1970 1350 19...

Page 19: ...4 B1J25 600 154 65 690 505 1530 1200 1505 505 290 743 121 3 4 600 L1C 24 B1J32 600 154 65 690 505 1830 1410 1555 540 330 780 153 1 990 L1C 28 B1J32 700 229 96 805 545 1830 1410 1660 540 330 845 153 1 1120 L1C 30 B1J32 750 229 96 870 585 1830 1410 1725 540 330 870 153 1 1190 L1C32 B1J32 800 241 101 910 600 1830 1410 1795 540 330 925 153 1 1270 Type valve and actuator Dimensions mm NPT Weight kg DN ...

Page 20: ...I 2 G c Tmax 600 C S STEAM JACKET ATEX II 2 G c ONLY FOR L1 E EROSION CONSTRUCTION ONLY FOR L1C B BEARING PROTECTION O ring bearing protection for soft bearings P POLISHED ONLY FOR L1 polished flow port and disc Ra 0 8 guided flange Z OXYGEN CONSTRUCTION Degreasing acc to Neles standard Note This is the construction for oxygen flow media more info see IMO 10O270en pdf Y Special to be specified 6 V...

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