Automatic temperature and humidity regulation – Traps – Thermostatic
Patent
1985-01-03
1985-12-24
Tapolcai, William E.
Automatic temperature and humidity regulation
Traps
Thermostatic
236 93A, 251 86, F16T 102
Patent
active
045601054
ABSTRACT:
In a bellows-actuated thermostatic steam trap (A) having a bellows (41) carrying a valve member (45) of a valve (45/22) for opening and closing the trap, the bellows is disposed between connections (20/21 and 30/31) which are identical to one another so as to be selectively connectable in a steam flow line with the valve (45/22) disposed either downstream of, or upstream of, the bellows (41). The trap includes a metal housing (11/12), the mass of which constitutes at least 70% of the mass of the trap. The trap operates, when connected with the valve disposed downstream of the bellows, in a first mode in which, in normal operation, the trap discharges condensate at a temperature close to saturated steam temperature. When connected with the valve disposed upstream of the bellows, the valve operates in a second mode in which in normal operation condensate is discharged at a temperature significantly below steam temperature. One or other of these modes can be simply obtained, merely be selecting which way round the trap is connected in a flow line.
REFERENCES:
patent: 2975974 (1961-03-01), Jackson et al.
patent: 3489349 (1970-01-01), Hilmer et al.
patent: 3725989 (1973-04-01), Reid et al.
patent: 4044791 (1977-08-01), McKenzie
Moyerman Ruth
Spirax Sarco, Inc.
Tapolcai William E.
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