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Lug API butterfly valve

Product Overview

Lug butterfly valve is a kind of high performance butterfly valve designed and manufactured according to the current American standard API609.The valve adopts three - dimensional eccentric oblique conical seat sealing pair, butterfly plate sealing adopts new metal plate embedded in the butterfly plate and the valve seat anastomosis.Butterfly plate rotary pressure sealing, so the sealing surface friction resistance is small, the more closed the more tight function, so that the sealing performance is reliable, open to ensure that the seal completely out of contact, to ensure that the sealing surface is not damaged.The main structural features of the 815W, 830W and 860W series butterfly valves are sandwiched and flanged with triple eccentricity, while the main structural features of the 815L and 830L series butterfly valves are single flange with threaded holes with lugs around the body.

Structural characteristics

1. It has the advantages of simple structure, small volume, light weight, low cost and wide application range;
2. The structure of the butterfly valve eliminates the defect that other types of butterfly valves can not be sealed due to over opening, and can be used normally at high temperature, which overcomes the defect of easy leakage due to thermal expansion when using at high temperature;
3. According to the requirements of service medium, the butterfly valve selects different sealing surface materials to ensure that the sealing surface is wear-resistant, erosion resistant and has a long service life.

Execution standard

Design and Manufacture: API609
Structure length: ASME B16.10
Flange connection: ASME B16.5, ASME 16.47
Test and verify: API 598

Performance parameter

Nominal size: NPS 2"~40"
Nominal pressure: CLASS 150~600Lb
Applicable temperature: -29~425℃
Applicable medium: water, steam, oil, sea water, etc
Main material: WCB;CF8;CF8M;CF3;CF3M

Product Dimensions

API 815L/W series Class150
DN Structure length
(standard)  		Boundary dimensions (reference) Connection dimensions (standard) Refer weight
(kg)
L H H0 D1 D2 M Z-d
inches mm inches mm inches mm inches mm inches mm inches mm
2 50 1.69 43 4.33 110 13.58 345 4.75 120.5 3.62 92 M16 4-18 11
2 1/2 65 1.81 46 4.64 118 14.25 362 5.50 139.5 4.13 105 M16 4-18 12
3 80 1.88 48 4.92 125 14.96 380 6.00 152.5 5.00 127 M16 4-18 13
4 100 2.12 54 5.70 145 16.34 415 7.50 190.5 6.19 157 M16 8-18 15
5 125 2.19 56 6.50 165 17.91 455 8.50 216 7.32 186 M20 8-22 18
6 150 2.25 57 6.89 175 21.45 545 9.50 241.5 8.50 215 M20 8-22 25
8 200 2.50 64 8.26 210 24.21 615 11.75 298.5 10.62 270 M20 8-22 36
10 250 2.81 71 9.84 250 27.36 695 14.25 362 12.75 324 M24 12-26 53
12 300 3.19 81 11.24 285 32.78 830 17.00 432 15.00 381 M24 12-26 74
14 350 3.62 92 12.60 320 35.43 900 18.75 476 16.25 413 M27 12-30 110
16 400 4.00 102 13.98 355 38.58 980 21.25 540 18.50 470 M27 16-30 138
18 450 4.50 114 14.96 380 40.55 1030 22.75 578 21.00 533 M30 16-33 180
20 500 5.00 127 16.34 415 43.70 1110 25.00 635 23.00 584 M30 20-33 196
24 600 6.06 154 18.70 475 51.37 1305 29.50 749.5 27.25 692 M33 20-36 400
26 350 6.50 165 20.85 530 54.72 1390 29.31 745 28 711 M20 36-22 420
28 700 6.50 165 22.04 560 58.07 1475 31.31 795 30 762 M20 40-22 435
30 750 6.50 165 22.38 580 60.03 1520 33.31 845 32 813 M20 44-22 482
32 800 7.50 190 24.80 630 62.40 1585 35.44 900 34 864 M20 48-22 650
34 850 7.88 200 25.60 650 63.00 1600 37.69 957 36.25 921 M24 40-26 690
36 900 7.88 200 26.77 680 69.48 1765 39.75 1010 38.25 972 M24 44-26 800
38 950 7.88 200 27.95 710 72.84 1850 42.12 1070 40.25 1022 M27 40-30 1000
40 1000 8.50 216 29.53 750 76.00 1930 44.12 1121 42.5 1080 M27 44-30 1200

API 830F series Class300
DN Structure length
(standard) 		Boundary dimensions (reference) Connection dimensions (standard) Refer weight (kg)
L L1 H H0 D D1 D2 M Z-d
inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm
2" 50 1.69 43 4.25 108 4.33 110 13.58 345 6.50 165 5.00 127 3.62 92 M16 8-19 9 20
2 1/2" 65 1.81 46 4.50 112 4.64 118 14.25 362 7.50 190 5.86 149 4.13 105 M20 8-22 10 25
3" 80 1.88 48 4.50 180 4.92 125 14.96 380 8.25 210 6.63 168 5.00 127 M20 8-22 12 29
4" 100 2.12 54 5.00 190 5.70 145 16.34 415 10.00 254 7.87 200 6.19 157 M20 8-22 13 35
5" 125 2.19 56 5.50 200 6.50 165 17.91 455 11.00 279 9.25 235 7.32 186 M20 8-22 18 40
6" 150 2.31 59 5.50 210 6.89 175 21.45 545 12.50 318 10.63 270 8.50 216 M20 12-22 28 81
8" 200 2.88 73 5.90 230 8.26 210 24.21 645 15.00 381 13.00 330 10.62 270 M24 12-26 37 94
10" 250 3.25 83 6.30 250 9.84 250 27.36 695 17.50 445 15.24 387 12.75 324 M27 16-30 56 158
12" 300 3.62 92 7.00 270 11.24 285 32.78 830 20.50 521 17.76 451 15.00 381 M30 16-33 79 183
14" 350 4.62 117 7.50 290 12.60 320 35.43 900 23.00 584 20.24 514 16.25 413 M30 20-33 116 239
16" 400 5.25 133 8.50 310 13.98 355 38.58 980 25.50 648 22.50 571 18.50 470 M33 20-36 146 302
18" 450 5.88 149 8.74 330 14.96 380 40.55 1030 28.00 711 24.75 629 21.00 533 M33 24-36 193 346
20" 500 6.25 159 9.00 350 16.34 415 43.70 1110 30.50 775 27.00 686 23.00 584 M33 24-36 209 434
22" 550 7.12 181 10.50 370 17.50 445 46.5 1180 33.00 838 29.25 743 25.25 641 M39 24-42 320 550
24" 600 7.12 181 10.50 390 18.70 475 51.37 1305 36.00 914 32.00 813 27.25 692 M39 24-42 433 638
26" 650 8.25 210 11.50 410 20.00 510 54.0 1370 34.12 867 31.62 803 29 737 M33 32-36 450 650
28" 700 9.01 229 11.50 430 22.04 560 58.07 1475 36.25 921 33.75 857 31 787 M33 36-36 498 698
30" 750 9.01 229 12.50 450 22.38 580 60.03 1525 39 991 36.25 921 33.25 845 M36 36-39 523 788
32" 800 9.48 241 12.50 470 25.59 650 64.37 1635 41.5 1054 38.5 978 35.5 902 M39 32-42 588 988
34" 850 9.50 241 13.00 490 26.00 660 66.0 1675 43.62 1108 40.62 1032 37.5 953 M39 36-42 750 1050
36" 900 9.48 241 13.00 510 26.77 680 69.48 1765 46.12 1172 42.88 1040 39.75 1010 M42 32-45 838 1146
38" 950 11.80 300 16.15 530 28.5 725 72.0 1830 48.12 1222 44.88 1140 41.75 1060 M42 36-45 1200 1450
40" 1000 11.80 300 16.15 550 31.0 785 78.0 1980 50.12 1273 46.88 1191 43.88 1115 M42 40-45 1600 2000

API 830L/W series Class300
DN Structure length
(standard) 		Boundary dimensions (reference) Connection dimensions (standard) Refer weight (kg)
L H H0 D1 D2 M Z-d
inches mm inches mm inches mm inches mm inches mm inches mm
2~5" Same as the corresponding data in the table above
6" 150 2.31 76 6.89 175 21.45 545 10.62 270 8.50 216 M20 12-22 29
8" 200 2.88 89 8.26 210 24.21 615 13.00 330 10.62 270 M24 12-26 38
10" 250 3.25 114 9.84 250 27.36 695 15.25 387 12.75 324 M27 16-30 58
12" 300 3.62 114 11.24 285 32.78 830 17.75 451 15.00 381 M30 16-33 81
14" 350 4.62 127 12.60 320 35.43 900 20.24 514 16.25 413 M30 20-33 119
16" 400 5.25 140 13.98 355 38.58 980 22.50 591 18.50 470 M33 20-36 149
18" 450 5.88 152 14.96 380 40.55 1030 24.75 628 21.00 533 M33 24-36 198
20" 500 6.25 152 16.34 415 43.70 1110 27.00 686 23.00 584 M33 24-36 215
22" 550 7.12 178 17.50 445 46.5 1180 29.25 743 25.25 641 M39 24-42 350
24" 600 7.12 178 18.70 475 51.37 1305 32.00 813 27.25 692 M39 24-42 436
26" 650 8.25 229 20.00 510 54.0 1370 31.62 803 29 737 M33 32-36 500
28" 700 9.01 229 22.04 560 58.07 1475 33.75 857 31 787 M33 36-36 498
30" 750 9.01 229 22.38 580 60.03 1525 36.25 921 33.25 845 M36 36-39 528
32" 800 9.48 241 25.59 650 64.37 1635 38.5 978 35.5 902 M39 32-42 588
34" 850 9.50 241 26.00 660 66.0 1675 40.62 1032 37.5 953 M39 36-42 850
36" 900 9.48 241 26.77 680 69.48 1765 42.88 1039 39.75 1010 M42 32-45 843
38" 950 11.80 300 28.5 725 72.0 1803 44.88 1140 41.75 1060 M42 36-45 1300
40" 1000 11.80 300 31.0 785 78.0 1980 46.88 1191 43.88 1115 M42 40-45 1800
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