公开(公告)号：US3797805A

公开(公告)日：1974-03-19

申请号：US3797805D

申请日：1972-09-25

Applicant: DANFOSS AS

Inventor： NIELSEN H

IPC: F16K31/68 ,  F16K41/04

CPC classification number: F16K41/04 ,  Y10S285/925 ,  Y10T137/1624

Abstract: The invention relates to a thermostatic valve assembly for controlling the flow of a liquid therethrough. The assembly has a secondary seal for its valve stem which is made of a material which expands when contacted by a leaking quantity of the liquid being controlled. The expansion of the seal inhibits the leakage and the movement of the valve closure member. This manifestation of malfunctioning is a signal that the primary seal has become defective.

Abstract translation: 本发明涉及一种用于控制液体流过的恒温阀组件。 该组件具有用于其阀杆的二次密封，其由当受到被控制的液体的泄漏量接触时膨胀的材料制成。 密封件的膨胀可以防止阀门关闭件的泄漏和运动。 这种故障表现是主密封件变得有缺陷的信号。