Operating Torque Table of DN40-DN900 Soft Seal Fixed Ball Valve

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Size NPS Operating Torque of Soft Seal Fixed Ball Valve N.m
Class150  Class300 PN50 Class600 Class900  Class1500 PN260 Class2500 PN16 PN25 PN40 PN63 PN100 PN160 JIS10K JIS20K
PN20  PN110 PN150  PN420
40 1-1/2" / / / / 100 160 / / / / / / / /
50 2 / / 70 100 155 250 / / / / 70 105 / /
65 2-1/2" / / 120 170 265 420 / / / / 120 180 / /
80 3 / / 280 320 500 800 / / / / 230 340 / /
100 4 110 200 340 480 750 1200 100 140 170 240 340 500 100 170
125 5 180 290 550 780 1200 1900 160 220 260 350 550 820 160 260
150 6 340 480 800 1100 1700 2700 300 380 450 600 800 1150 280 450
200 8 500 850 1700 2400 3700 5900 450 630 750 1300 1700 2500 450 750
250 10 830 1400 2800 4000 6200 9900 750 1050 1250 2000 2800 4200 750 1250
300 12 1400 2400 4200 5900 9100 / 1250 1750 2100 2900 4200 6200 1250 2100
350 14 2200 3100 5800 8100 / / 2000 2600 2800 3700 5800 / 2000 2800
400 16 2600 4800 7500 10500 / / 2350 3200 4300 5800 7500 / 2350 4300
450 18 3700 6100 9500 / / / 3300 4600 5500 / / / 3300 5500
500 20 4800 7500 11500 / / / 4300 6000 6800 / / / 4300 6800
600 24 8200 12000 16500 / / / 7400 10000 11000 / / / 7400 11000
650 26 9600 15000 / / / / / / / / / / / /
700 28 12000 19000 / / / / / / / / / / / /
750 30 14000 22000 / / / / / / / / / / / /
800 32 16000 28000 / / / / / / / / / / / /
900 36 20000 35000 / / / / / / / / / / / /

 

The operating torque of the soft seal fixed ball valve in the table is calculated based on the normal temperature and clean medium. When selecting the driving device, it is recommended that the driving torque of the driving device should be at least 1.3 times that of the valve. For high-temperature, low-temperature conditions and non clean media, it will lead to the increase of valve operating torque, which shall be fully considered in the selection of driving device. The operating torque of metal hard seal fixed ball valve is about 3-4 times that of soft seal fixed ball valve.