Title:
難燃性均圧弁
Document Type and Number:
Japanese Patent JP4119481
Kind Code:
B2
Abstract:
A flame-retardant pressure equalizing valve contains a valve body that is guided in a housing. Under the influence of excess pressure, the valve body is displaceable from a closing position into a blow-off position. The housing and the valve body form a first closure and, in a series therewith, a second closure. The surface of the second closure projected in the opening direction is larger than the surface of the first closure projected in the opening direction and the first closure opens during opening before the second closure, so that, during opening, the excess pressure acts on an enlarged surface and the valve is opened promptly. The second closure is spaced from the first closure in opening direction. As a result, a better closing behavior and an increased outlet velocity of the outflowing gas are obtained.
Inventors:
Van der Ferde, Ede Alberto
Application Number:
JP53083897A
Publication Date:
July 16, 2008
Filing Date:
March 03, 1997
Export Citation:
Assignee:
Van der Ferde, Ede Alberto
International Classes:
F16K17/04; F16K3/24; F16K17/12; F16K17/194
Domestic Patent References:
| JP64032976U |
Foreign References:
| US5215114 | ||||
| US2164669 | ||||
| US3999571 | ||||
| US3054422 |
Attorney, Agent or Firm:
Keiichiro Saikyo