Acf Industries, Incorporated

Gray Tool

Bert L Morrison

Willard E Kemp

Charles D Bridges

Michael A Karr, Jr

A fire resistant connection (16) having heat transfer means (46) cooperatively associated therewith and that embodies a U-like sealing means (44). The fire resistant connection (16) with heat transfer means (46) is operative for purposes of effectuating the establishment of a fire resistant seal between mating surfaces (22, 18). The heat transfer means (46) includes a first heat transfer element (58), and a second heat transfer element (60). The subject fire resistant connection (16) includes the aforementioned U-like sealing means (44) and the aforereference mating surfaces (22, 18).

Fire resistant connections embodying heat transfer means

A method of fabricating a gate valve having a hollow body with inlet and outlet conduits mounted therein and seat support members mounted on inner ends of the conduits includes fabricating and stress relieving a seat support assembly, then machining it to finished dimensions, then inserting the seat support assembly into a hollow body member. After this is done, the seat support assembly is welded inside the hollow body member. Local stress relieving of welds in the body can be employed during and after assembly and welding. One arrangement includes inlet and outlet conduit sections welded to the hollow body and opposed inner conduit sections having the opposed seat support members thereon with the inner conduit sections welded to the inlet and outlet conduit sections from a position inside the conduits to form a continuation of the outer conduit sections. Another arrangement includes inlet and outlet conduits having seat support members welded and finish machined prior to assembly. These conduits are positioned inside the hollow body with the seat support members in a spaced relation and welded inside the hollow body. Annular grooves in the seat support members adjacent the seat pockets aid in stress relieving. A gate is movably mounted between the seat support members.

Method of making a fabricated gate valve

A gate valve structure having a hollow body with inlet and outlet conduits mounted thereon and opposed seat support members mounted on inner ends of the conduits. The opposed seat support members have seat pockets which are finish machined before insertion into the hollow body. The opposed seat support members are in a predetermined spaced relation to each other and they are welded in such spaced relation to the hollow body from a position within the hollow body. One arrangement includes inlet and outlet conduit sections welded to the hollow body and opposed inner conduit sections having the opposed seat support members thereon with the inner conduit sections welded to the inlet and outlet conduit sections from a position inside the conduits to form a continuation of the outer conduit sections. Another arrangement includes inlet and outlet conduits having seat support members welded and finish machined prior to assembly. These conduits are positioned inside the hollow body with the seat support members in a spaced relation and welded inside the hollow body. Annular grooves in the seat support members adjacent the seat pockets aid in stress relieving. A gate is movably mounted between the seat support members. A method of making a gate valve body includes fabricating and stress relieving a seat support assembly, then machining it to finished dimensions, then inserting the seat support assembly into a hollow body member. Next, the seat support assembly is welded inside the hollow body member. Local stress relieving of final welds in the body can be employed.

Fabricated gate valve structure

A gate valve seat ring retainer particularly for a non-ported gate valve comprising an annular seat ring mountable in a seat pocket around the flow passageway in a gate valve body. A recess in the valve body opens into the flow passageway in a spaced relation to the seat pocket. An elongated retainer extending in the flow passageway has one end portion secured to the seat ring and the opposite end portion engaged in the recess to hold and retain the seat ring in place in the gate valve body.

Growing community of inventors

Houston, TX, United States of America

Bert L Morrison