Bellows-actuated thermostatic steam traps
US4560105A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1985 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Jan 3, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16T1/10
- WIPO fieldControl
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.