Butterfly valve assembly and method of making same

Valves and valve actuation – With means for blocking or disabling actuator – Latch manipulator mounted on handle or stem

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Details

251144, 251305, F16K 3500

Patent

active

048099481

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 a new 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 a new butterfly valve and method of making same are provided wherein such butterfly valve has new heat exchange devices comprising same for controlling the temperature thereof.

REFERENCES:
patent: 1380307 (1921-05-01), Capewell
patent: 2565244 (1952-08-01), Laurent
patent: 2632623 (1953-03-01), Colwell
patent: 3396937 (1968-08-01), McDougall
patent: 4327768 (1982-05-01), Behle
patent: 4518149 (1985-05-01), Gardner et al.

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