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公开(公告)号：US3628571A
公开(公告)日：1971-12-21
申请号：US3628571D
申请日：1970-03-26
Applicant: ITT
Inventor： OSTWALD FRITZ , NONN GERHARD
CPC classification number: F16K11/02 , Y10T137/86919 , Y10T137/87169
Abstract: In this seat valve the flow direction is in opposition to the valve opening and the valve actuator closes a connection between the chamber on the downstream side of the valve and a lowpressure reservoir before lifting the valve from its seat.
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