Flange Center Plate Butterfly Valve(Pneumatic)
Technical Parameter

Pressure range:CLASS150~CLASS600 (PN6~PN16)Nominal diameter:NPS2"~120"(DN50~DN3000)Body material:Carbon steel, Stainless steel, Duplex stainless steel, Alloy steel, Ductile ironEnd connection:FlangeTemperature range: -40℃~120℃Drive type:Pneumatic deviceDesign standard:API 609,AWWA C504,GB/T12238,GB/T13927



Product Detail

Product Structure Features

1.Driving device:Can be equipped with a handle, worm gear, electric or pneumatic control device. 2.Bushing:Reduce the rotational torque, support the stem, and make it separate from the body effectively, reduce the wear of the valve stem. 3.Surface of disc axle hole:After polishing treatment, with the seat precision. 4.High precision disc external profile:To achieve zero leakage requirements of air tightness test. The opening and closing torque is small, prolong the service life of the seat. 5.Stem seal:Stem seal is not easy to deform, thereby avoiding the usual stem leakage. 6.Strong precision key:The utility model has the advantages of high precision and high strength, and is suitable for the installation of the handle and other control devices. 7.Precision taper pin:The utility model is characterized in that the valve rod and the valve plate are firmly connected with the valve plate, and the utility model has the characteristics of anti vibration and easy replacement. 8.Integral stem design:High precision, high reliability, easy to control the opening and closing of the valve plate. 9.Body lined with rubber seat:Good overall stability, stable, tensile, anti leakage. 10.O-ring:Auxiliary shaft end leakage.


Main external connection dimensions

Nominal diameter Length Dimensions(Reference)


Connection size (standard value)

WT
kg

0.6MPa 1.0MPa 1.6MPa
mm in L C B A D D1 D2 D3 n-d D1 D2 D3 n-d D1 D2 D3 n-d
50 2 108 82.5 338 180 65 140 110 88 4-14 165 125 99 4-18 165 125 99 4-18 14
65 2-1/2 112 92.5 358 180 65 160 130 108 4-14 185 145 118 4-18 185 145 118 4-18 16
80 3 114 100 413 245 72 190 150 124 4-18 200 160 132 8-18 200 160 132 8-18 17
100 4 127 110 428 240 72 210 170 144 4-18 220 180 156 8-18 220 180 156 8-18 21
125 5 140 125 444 240 72 240 200 174 8-18 250 210 184 8-18 250 210 184 8-18 27
150 6 140 142.5 553 350 93 265 225 199 8-18 285 240 211 8-22 285 240 211 8-22 29
200 8 152 170 678 350 93 320 280 254 8-18 340 295 266 8-22 340 295 266 12-22 50
250 10 250 197.5 742 550 350 375 335 309 12-18 395 350 319 12-22 405 355 319 12-26 69
300 12 270 222.5 803 600 350 440 395 363 12-22 445 400 370 12-22 460 410 370 12-26 91
350 14 290 252.5 866 600 350 490 445 413 12-22 505 460 429 16-22 520 470 429 16-26 110
400 16 310 282.5 940 600 350 540 495 463 16-22 565 515 480 16-26 580 525 480 16-30 138
450 18 330 307.5 995 750 380 595 550 518 16-22 615 565 530 20-26 640 585 548 20-30 175
500 20 350 335 1058 750 380 645 600 568 20-22 670 620 582 20-26 715 650 609 20-33 210
600 24 390 390 1163 750 380 755 705 667 20-26 780 725 682 20-30 840 770 720 20-36 275
700 28 430 447.5 1283 750 380 860 810 772 24-26 895 840 794 24-30 910 840 794 24-36 530
800 32 470 507.5 1398 750 380 975 920 878 24-30 1015 950 901 24-33 1025 950 901 24-39 590
900 36 510 557.5 1498 1250 380 1075 1020 978 24-30 1115 1050 1001 28-33 1125 1050 1001 28-39 1400
1000 40 550 615 1608 1500 580 1175 1120 1078 28-30 1230 1160 1112 28-36 1255 1170 1112 28-42 1650
1200 48 630 727.5 1876 1500 580 1405 1340 1295 32-33 1455 1380 1328 32-39 1485 1390 1328 32-48 2140