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A31A Cryogenic Valve

Product Bulletin

21.1:Cryogenic-Rotary

October 2010

Table 12. Fisher A31A Cryogenic-Valve CL150, Reverse Flow, NPS 20 and 24

Coefficients

Valve

Size,

NPS

Valve Rotation, Degrees

10 20 30 40 50 60 70 80 90

208 692 1520 2630 4160 6230 8730 11,220 13,850

180 599 1315 2275 3598 5389 7551 9705 11,980

0.090 0.17 0.26 0.34 0.42 0.49 0.57 0.64 0.70

0.77 0.79 0.81 0.81 0.78 0.73 0.68 0.60 0.52

0.50 0.53 0.55 0.55 0.51 0.45 0.39 0.30 0.23

322 1080 2370 4080 6450 9670 13,540 17,410 21,500

277 934 2050 3529 5579 8365 11,712 15,060 18,598

0.090 0.17 0.26 0.34 0.42 0.49 0.57 0.64 0.70

0.77 0.79 0.81 0.81 0.78 0.73 0.68 0.60 0.52

0.50 0.53 0.55 0.55 0.51 0.45 0.39 0.30 0.23

1 2 ... 12 13 14 15 16 17 18 19 20

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