公开(公告)号：US3906987A

公开(公告)日：1975-09-23

申请号：US45059474

申请日：1974-03-13

Applicant: WATTS REGULATOR CO

Inventor： RUSHFORTH CALVIN ,  TINE SEBASTIAN DAVID

IPC: E03C1/10 ,  F16K17/04

CPC classification number: E03C1/106 ,  E03C1/108 ,  F16K17/04 ,  Y02A20/202 ,  Y10T137/3331 ,  Y10T137/6154 ,  Y10T137/7876 ,  Y10T137/86292

Abstract: A cross-connection valve, with upstream and downstream valving, which prevents backflow from contaminating the source of liquid is provided with field serviceability features by arranging the upstream valving and backflow discharge passageway means on an access door that normally serves as part of the valve body. A tool is arranged to enter through the discharge passage to hold the upstream valving in assembled condition on the access door, to permit field servicing for repair or replacement of the upstream valving, when the access door is open, and the downstream valving is also accessible for field servicing through the opening for the access door.

Abstract translation: 具有上游阀门和下游阀门的交叉连接阀门通过在通常用作阀体的一部分的检修门上布置上游阀门和回流排放通道装置来提供现场可维护性特征，其具有防止回流污染液体源的交叉连接阀 。 工具被布置成通过排放通道进入以将组装状态的上游阀保持在检修门上，以便当检修门打开时允许现场维修维修或更换上游阀门，并且下游阀门也可接近 通过门的开口进行现场维修。

公开(公告)号：US3636968A

公开(公告)日：1972-01-25

申请号：US3636968D

申请日：1970-10-05

Applicant: WATTS REGULATOR CO

Inventor： TINE SEBASTIAN DAVID

IPC: E03C1/10 ,  F16K17/04

CPC classification number: E03C1/106 ,  E03C1/108 ,  F16K17/0473 ,  Y02A20/202 ,  Y10T137/2544 ,  Y10T137/3331 ,  Y10T137/7842

Abstract: A cross-connection valve provides vertically spaced inlet and outlet valve seats with a balanced relief valve means interposed vertically between the inlet and outlet valve seats and a single abutment for bias means that effects closure of the outlet valve and biases the relief valve means toward a normally open condition. A special flexible construction and arrangement of valve parts and seats permits interconnection of the inlet valve and the relief valve means. The arrangement of parts provides for material reduction in size and cost of construction.

Abstract translation: 交叉连接阀提供垂直间隔开的入口和出口阀座，其具有垂直放置在入口阀座和出口阀座之间的平衡安全阀装置，以及用于偏压装置的单个邻接件，其实现出口阀的关闭并将安全阀装置朝向 常开状态。 阀门部件和阀座的特殊柔性结构和布置允许入口阀和安全阀装置相互连接。 零件的布置提供了尺寸和结构成本的材料减少。