Nutter float-valves

Ghtsch, Inc. and (c) Nutter Float Valve, courtesy of Nutter Engineering Co. 

Figure 8-69B. Nutter float valves in open and closed positions for use on distillation trays. Used by permission, Nutter Engineering, Harsco Corp., Bui. N-2.

Nutter Engineering, Nutter Float Valve Tray Design Manual, and ElectronicDesign Manual Version 2.0, Nutter Engineering, a Harsco Corp. (1990), Tulsa, Okla. 

Nutter Float Valve Design Manual, Nutter Engineering Co., Tulsa, Oklahoma, August 1981. 

Rectangular float valve (Nutter float valve tray)... 

Fractionation Research, Inc. Report of Tests of Nutter Type B Float Valve Tray, July 2, 1964 from Nutter Engineering Co. 

Float Valve Figures 8-69A, 69B Nutter High Hlgh/High Medium Good... 

Nutter Engineering, Float Valve Design Manual, 1976. Available from... 

Figure .i3 Values of downcomer residence time (a to be used in the Koch correlation and in the Nutter correlation for maximum downcomer velocity [Eq. (6.26)]. Data based on Koch Engineering Co. Inc. Design Manual-Flexitray, Bulletin 960-1, Wichita, Kansas, 1962 and on Nutter Engineering Float Valve Design Manual, Tulsa, Oklahoma, 1976. 

Nutter Enginsering, "Float Valve Dseign Manual," Tulsa, Oklahoma, 1976. 

Nutter Engineering. Nutter Engineering Float Valve Design Manual. (Rev. 1), Bulletin FV-1 Tulsa, OK, 1981. 

TOWER SIZING GRAPHS AND CURVES IN NUTTER S FLOAT VALVE DESIGN HAVE BEEN FITTED Tp A SERIES OF EQUATIONS AND ARE USED IN THIS PROGRAM. 

Nutter Engineering Company, Float Valve Tray Design Manual, Tulsa, OK, 1976. 

Manufacturers of valve trays, such as Koch-Glitsch, Inc., of Wichita, Kansas (Ballast trays and Flexitrays), and Sulzer-Chemtech (formerly Nutter Engineering Co.), of Tulsa, Oklahoma (Float Valve Trays), have prepared proprietary design manuals. Hence, only limited discussion will be given here. As for bubble-cap trays, design methods follow those for sieve trays. The vapor capacity chart (Figure 12.29) covers valve trays, as does the alternate method of Kister and Haas. Information on liquid entrainment is proprietary, but measurements have been made by Fractionation Research, Inc. Because of the vapor flow reversal, one would not expect entrainment from valve trays to be greater than that from sieve trays. Liquid capacity considerations follow exactly those for sieve trays. 

Nutter Engineering, "Float Valve Design Manual," Tulsa, Oklahoma, 1976. Frank, 0 Chem. Eng., March 14, p. Ill, 1977. 

Nutter Engineering Company, Float Valve Tray Design Manual, Tulsa, OK, 1976. O Connell, H.E. Trans. A.I.Ch.E., 42, 741, 1946. 

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