초록 ▼

A method of replacing an inlet valve for a hot water tank, comprising removing the existing valve and inserting a new valve particularly adapted for use in the present invention. The new valve is connected to the pipe end portion of the inlet pipe by means of a compression nut and a ferrule, with th

A method of replacing an inlet valve for a hot water tank, comprising removing the existing valve and inserting a new valve particularly adapted for use in the present invention. The new valve is connected to the pipe end portion of the inlet pipe by means of a compression nut and a ferrule, with the compression nut attaching to exterior threads on a first connecting portion of the valve. Then the flex tube connecting member is interconnected with the exterior threads of a second pipe connecting portion. The valve itself is a gate valve with a full flow through passageway, and the two exteriorly threaded connecting portions are to be connected to the compression nut and the flex tube connecting nut, respectively.

대표청구항 ▼

A method of installing a valve in a water distribution network of an existing plumbing system where there is: (a) a distribution pipe having an upstrean end and a downstream outlet end, and also having an outside surface of a predetermined outside diameter, and an inside surface defining a passagewa

A method of installing a valve in a water distribution network of an existing plumbing system where there is: (a) a distribution pipe having an upstrean end and a downstream outlet end, and also having an outside surface of a predetermined outside diameter, and an inside surface defining a passageway having a predetermined passageway diameter and passageway cross-sectional area; (b) an existing shutoff valve located upstream of the upstream end of the distribution pipe; said method comprising: (a) determining an installation location where the valve is to be installed in the plumbing system; (b) operating said existing shutoff valve to stop flow of water to said installation location; (c) providing said distribution pipe at said installation location with an open pipe end portion which is substantially undistorted and provides a substantially uninterrupted through passageway portion, without enclosing said installation location in a watertight containment and with said installation location being open to the surrounding environment; (d) providing a valve assembly comprising: (1) a valve comprising: (i) a main body portion defining a central through passageway section having a cross-sectional area at least as great as that of the pipe passageway; (ii) a valve closure member having a first position closing said central through passageway section and a second position where said central through passageway section is substantially unobstructed; (iii) a first connecting portion defining a substantially unobstructed through passageway portion, and having an exterior threaded surface portion with threads arranged to receive a compression fitting; (iv) a second connecting portion defining a substantially unobstructed through passageway portion, and having an exterior threaded surface portion with threads adapted to receive a conventional plumbing connecting member with interior threads; (2) a compression nut having an annular integral structure, with an inner threaded surface to engage the threaded surface portion of said first connecting portion, and having a through opening to receive said pipe end portion; (3) an annular compression seal member adapted to be positioned adjacent said pipe end portion in sealing engagement with said first connecting portion and said pipe end portion; (e) inserting said valve at said installation location, with said compression nut and said seal member being placed adjacent said pipe end portion and with said first connecting portion being in connecting relationship with said pipe end portion and threading said nut onto said first connecting portion to bring said seal member in sealing relationship with the pipe end portion; (f) interconnecting said valve to an end use component to which water is to be delivered, by threading a conventional interiorily threaded connecting member onto said second connecting portion, with said conventional interiorly threaded member being connected to said end use component; (g) opening said existing shutoff valve.