发明名称 |
Leckagefrei schaltende Doppelventilanordnung |
摘要 |
<p>A leakproof double seat valve comprises two slide-valve bodies (1, 2) in a valve housing (3) with conduit connections (4, 5). In the closed position, the two slide-valve bodies (1, 2), which can be actuated independently of one another, rest against valve seats (6, 7) in the valve housing (3) and are at a distance apart, thus forming a leakage cavity (8). During the opening process, the first slide-valve body (1) can be brought to rest against the other, second slide-valve body (2) before it leaves its valve seat (6), the former movement involving a reduction in the size of the leakage cavity (8). The second slide-valve body (2) is provided with a tubular extension (9) which is passed out of the valve housing (3) in a sealed manner and connects the leakage cavity (8) to the surroundings of the valve. In a double seat valve of this kind, optimum cleaning with minimum consumption of flushing agent is achieved by virtue of the fact that the two slide-valve bodies (1, 2) can each be moved independently of the other by a partial stroke in the opposite direction to that of opening into a flushing position in which the slide-valve body (1 or 2) is free of its valve seat (6 or 7) and rests against a housing stop (13 or 14) provided with openings (11 or 12) for flushing agent. <IMAGE></p> |
申请公布号 |
DE59303677(D1) |
申请公布日期 |
1996.10.10 |
申请号 |
DE1993503677 |
申请日期 |
1993.09.21 |
申请人 |
APV ROSISTA GMBH, 4750 UNNA, DE |
发明人 |
BRAECKELMANN, WOLFGANG, DIPL.-ING., D-59425 UNNA-UELZEN, DE;SCHRAMM, NORBERT, DIPL.-ING., D-59427 UNNA, DE;BAUMBACH, FRANK, DIPL.-ING., D-59495 SOEST, DE |
分类号 |
F16K3/00;F16K1/44;F16K3/16;(IPC1-7):F16K1/44 |
主分类号 |
F16K3/00 |
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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