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NBD943 electric control butterfly valve
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Description

NBD943 electric control butterfly valve consists of body, plate, seal ring and .drive mechanism, etc. The design of the structure adopts three eccentric principle. The new process of combining elastic seal with hard-soft multi-layer seal allows the plate and seat to separate from each other instantly during the opening of the butterfly valve, and to reduce the torque force during operation, thus to achieve the function of saving power and energy. Thereby, it ensures the liability of the integral corrosion-resistance, heat- resistance and wear-resistance, and lengthen its service life. This valve is sealed at both sides, and it is widely applied in industrial pipelines of metallurgy, electricity, petrochemical, water supply and drainage and municipal construction.

Product features


1.The butterfly valve adopts three eccentric seal structure. There is no attrition between seat and butterfly board, which makes the seal tight.
2.Seal spring is made of stainless steel, which has two advantages such as stellited seal and elastic seal. It has good corrosion resistance and a Iong service Iife no matter the temperature is high or Iow.
3.The sealing face of the plate adopts built-ups of Co-based hard alloy, which is wear resistant and has Iong service life.
4.Large butterfly board adopts truss structure, the advantage of which is high strength, large flow area and small flow resistance.
5.The valve has two-way seal function. Both flow direction of medium and space can' t influence installation. It can be installed from any direction.
6.Drive can be installed in multi-angle (rotated 900 or 1800) to make it easy for user to use.


Technical parameter and performance indicators


Nominal?Diameter 50~2000
Nominal?Pressure(Mpa) 0.6 1 1.6 2.5
Sealing?test(Mpa) 0.66 1.1 1.76 2.75
Strength?test(Mpa) 0.9 1.5 2.4 3.75
Temperature

Carbon?steel(CS):-29°C~425°C?Stainless?steel(SS):-40°C~650°C
Material??? water,?air,natural?gas?,oils?and?corrosive?fluid?
Leakage? Accord?with?standard?of?GB/T13927
Drive?way Turbine?drive?,electric?drive?,pneumatic?,hydraulic?drive


Outer size


Nominal?Diameter Main?dimensions Bolts?and?flange?size?specifications
1.0MPa 1.6MPa 2.5MPa
L H1 H D D1 n~Φd D D1 n~Φd D D1 n~Φd
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 24-30 960 875 24-42
800 318 2040 530 1015 950 24-33 1025 950 24-33 1085 990 24-48
900 330 2255 580 1115 1050 28-33 1125 1050 28-33 1185 1090 28-48
1000 410 2380 650 1230 1160 28-36 1255 1170 28-36 1320 1210 28-56
1200 470 2640 760 1455 1380 32-39 1485 1390 32-39 1530 1420 32-56
1400 530 2886 850 1675 1590 36-42 1685 1590 36-42 1755 1640 36-62
1600 600 3156 1030 1915 1820 40-48 1930 1820 40-48 1975 1860 40-62
1800 670 3421 1230 2115 2020 44-48 2130 2020 44-48 2195 2070 44-70
2000 760 3685 1350 2325 2230 48-48 2345 2230 48-62 2425 2300
In the material…
In the material…
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