Bimetallically controlled steam trap

Details Bimetallically controlled steam trap Bimetallically controlled steam trap

1984-04-10

1985-12-31

Tapoloai, William E.

Automatic temperature and humidity regulation

Traps

Thermostatic

236 48R, 236 93R, F16T 108

Patent

active

045615888

ABSTRACT:
A steam trap with a closure element or valve disposed on the low pressure side cooperating with a valve seat, the valve being actuated by a control unit disposed in the high pressure chamber of the steam trap. The control unit includes a plurality of bimetallic spring elements each having a support portion and an operative portion and different actuation temperatures which act on the valve stem to close the valve on the valve seat. The support portions of the bimetallic spring elements engage a stationary support of said steam trap and the operative portions thereof engage the valve stem. The engagement of the bimetallic spring elements with the valve stem is such that when the valve is closed by the action of the bimetallic spring elements having the higher actuation temperatures, the bimetallic spring elements having the lower actuation temperatures are unaffected thereby and thus not stressed by the spring forces of the bimetallic spring elements of the higher actuation temperatures.

REFERENCES:
patent: 2271850 (1942-02-01), Zinkil
patent: 3220650 (1965-11-01), Deeks
patent: 3362636 (1968-01-01), Miyawaki
patent: 3400887 (1968-09-01), Foeller
patent: 3790076 (1974-02-01), Wichtel
patent: 3985296 (1976-10-01), Fujiwara
patent: 4311272 (1982-01-01), Foller
patent: 4339075 (1982-07-01), Schittek et al.
patent: 4347975 (1982-09-01), Foller

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