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CN | EN

Flange Center Plate Butterfly Valve（Electric）

Technical Parameters

Fluid medium: Water, oil, gas and various corrosive media
Temperature Range: -10～150℃
Pressure Ratings: PN1.0～1.6MPa
Size Range: DN50～DN1400
Connection Type: Flanged
Connection standard: GB·ANSI·DIN·API·ISO·BS
Body Materials: Cast iron；Ductile iron
Valve seat material: Rubber
Valve plate material: Stainless steel;Ductile iron
Note: All parts can be made of different materials according to actual working conditions.

Product Details

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

DN Main dimensions Flange size
1.0MPa 1.6MPa 2.5MPa
L H1 H D D1 z-Фd D D1 z-Фd D D1 z-Фd
50 108 530 112 165 125 4-18 165 125 4-18 165 125 4-18
65 112 530 115 185 145 4-18 185 145 4-18 185 145 8-18
80 114 565 120 200 160 4-18 200 160 8-18 200 160 8-18
100 127 600 138 220 180 8-18 220 180 8-18 235 190 8-22
125 140 640 164 250 210 8-18 250 210 8-18 270 220 8-26
150 140 705 175 285 240 8-22 285 240 8-22 300 250 8-26
200 152 775 200 340 295 8-22 340 295 12-22 360 310 12-26
250 165 945 243 395 350 12-22 405 355 12-26 425 370 12-30
300 178 1070 250 445 400 12-22 460 410 12-26 485 430 16-30
350 190 1140 280 505 460 16-22 520 470 12-26 555 490 16-33
400 216 1210 305 565 515 16-26 580 525 16-26 620 550 16-36
450 222 1335 350 615 565 20-26 640 585 16-30 670 600 20-36
500 229 1415 380 670 620 20-26 715 650 20-30 730 660 20-36
600 267 1605 445 780 725 20-30 840 770 20-33 845 770 20-39
700 292 1844 480 895 840 24-30 910 840 24-36 960 875 24-42
800 318 2040 530 1015 950 24-33 1025 950 24-39 1085 990 24-48
900 330 2255 580 1115 1050 28-33 1125 1050 28-39 1185 1090 28-48
1000 410 2380 650 1230 1160 28-36 1255 1170 28-42 1320 1210 28-56
1200 470 2640 760 1455 1380 32-39 1485 1390 32-48 1530 1420 32-56


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