Butterfly valve assembly and method of making same

Fluid handling – With heating or cooling of the system – Circulating fluid in heat exchange relationship

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Details

251113, 251144, 251305, F16K 4900

Patent

active

045427631

ABSTRACT:
A butterfly valve assembly and method of making the same are provided wherein such valve assembly has a valve body structure and a closure structure and is provided with an improved device for locking, in its closed position, a shaft assembly which is used to operate the closure structure. In accordance with another feature of the invention an improved butterfly valve and method of making same are provided wherein such butterfly valve has improved heat exchange means disposed in the outer periphery of its valve body structure for controlling the temperature thereof.

REFERENCES:
patent: 1599894 (1926-09-01), Jach
patent: 2811981 (1957-11-01), Harris
patent: 2884959 (1959-05-01), Neely
patent: 3272223 (1966-09-01), Sass
patent: 4016907 (1977-04-01), Rawstron
patent: 4353388 (1982-10-01), Isoyama et al.
patent: 4380246 (1983-04-01), Casale et al.
patent: 4410002 (1983-10-01), Schuurman

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