发明名称 |
BELÜFTUNGSVENTIL FÜR SANITÄRES ABWASSERSYSTEM |
摘要 |
<p>The invention relates to a valve for admitting atmospheric air into the waste pipe system in response to a pressure reduction in the system and for preventing discharge of contaminated air from the waste pipe system to the atmosphere. The valve consists of a valve body having at least two air inlet openings (30) in connection with the atmospheric air, each of the openings (30) alternating with a passage (14) towards the waste pipe system, said openings and passages (14) being equally distributed within the valve housing when considering a cross sectional view in a horizontal plane about the valve seat level (H). The valve member (34) resting, in normal closed position, on a the valve seat (24) separating said openings (30) from said passages (14) and having a substantially butterfly shaped sealing surface in case of a valve embodiment having two diametrically opposed openings (30) situated perpendicular to respectively two diametrically opposed passages (14) <IMAGE></p> |
申请公布号 |
AT277234(T) |
申请公布日期 |
2004.10.15 |
申请号 |
AT20000902506T |
申请日期 |
2000.02.02 |
申请人 |
ERICSON, KURT STURE BIRGER |
发明人 |
ERICSON, KURT STURE BIRGER |
分类号 |
E03C1/122;E03C1/295;E03F1/00;F16K24/00;F16K24/06;(IPC1-7):E03C1/122 |
主分类号 |
E03C1/122 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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