A method of refurbishing a damaged valve is disclosed that generally includes receiving a valve housing having generally collinear inlet and outlet ports in the side walls thereof and an interior annular face about each of the inlet and outlet ports, the housing comprising a first metal with a yield strength and the side walls having a predetermined thickness, creating an annular groove about an interior annular face of the inlet port, creating an annular groove about an interior annular face of the outlet port, and placing a second metal within each of the annular grooves, the second metal having a yield strength, wherein the yield strength of the first metal is less than the yield strength of the second metal.

A solenoid valve includes a housing, a bobbin and an armature. The bobbin is received at least partially within the housing and has a body about which a coil is provided. A fluid flow path including an inlet and an outlet and a valve seat is defined by at least one of the housing or the bobbin, and the armature is moveable relative to the valve seat to control flow through the fluid flow path.

A method of installing an Emergency Flow Restrictor Device (EFRD) on a pipeline without stopping the flow of fluid through the pipeline includes the steps of: assembling first and second face plates on a pipeline such that the first and second sealing face are in face to face, spaced relation; assembling a cutting device between the first face plate and the second face plate; assembling a valve body that has an access opening on a length of pipeline such that the valve body encloses the first and second face plates and the cutting device; installing an access valve on the access opening; operating the cutting device to sever the pipeline between the first and second sealing faces; retracting the cutting device and severed section of pipeline; and attaching a valve gate member of the EFRD to the access opening.

A system for protecting a fluid supply from a contaminant includes an anchor check valve having an inlet end and an exit end, the anchor check valve adapted to allow fluid flow through the anchor check valve from the inlet end to the exit end but prevent fluid flow through the check valve from the exit end to the inlet end; a dry-barrel fire hydrant in proximate fluid communication with the anchor check valve, the dry-barrel fire hydrant having a valve operating mechanism; and a hydrant shoe coupled to the anchor check valve, the hydrant shoe having a valve assembly adjustably connected to the valve operating mechanism of the dry-barrel fire hydrant.

A method for producing a rotary slide valve for regulating a flow of fluid, including a rotary slide (02) which is rotatably mounted about a rotational axis (R) in a valve housing, includes producing the rotary slide (02) by injection molding, producing at least one circumferential or casing section (04) of the valve housing (03) by injection molding, and installing the rotary slide (02) within the valve housing (03). A gap between the rotary slide (02) and the directly adjacent valve housing circumferential or casing section (04) of the valve housing (03) in the radial direction, allows the rotary slide (02) to rotate about the rotational axis (R) and facilitates a seal which does not exceed a tolerable leak between the rotary slide (02) and the circumferential or casing section (04) of the valve housing (03).

A dry sprinkler is provided that includes a conduit with a fluid inlet and a fluid outlet, a valve positioned near the fluid inlet and a fire sprinkler head that is positioned near the fluid outlet. The fire sprinkler head is operably connected to the valve by a tie. When the fire sprinkler head reacts to an elevated temperature condition, the tie is engaged and is operable to open the valve. In a normal state, before the fire sprinkler head reacts, the tie can be unbiased toward the fire sprinkler head. The tie can also be non-rigid and/or in a non-compressed state within the conduit. The conduit of the dry sprinkler can be flexible.

A pressure relief valve (PRV) assembly may include a housing having an opening therein, an interior cavity, a passageway extending between the opening and the interior cavity, and a flange extending within the passageway adjacent the opening. The PRV assembly may also include a first stage valve carried within the interior cavity, and a second stage valve fluidly coupled in series with the first stage valve. The second stage valve may include an enlarged head carried within the opening and a shaft extending from the enlarged head through the passageway to the interior cavity. The shaft may have a proximal end coupled to the enlarged head and an opposing enlarged distal end adjacent the interior cavity. A biasing member may be between the enlarged distal end and the flange. The biasing member may be configured to bias the first and second stage valves to a closed position.

A bladder and attachment member assembly for use with a container comprises an elastomeric gas-filled bladder comprising a valve stem. A first attachment member is disposed over the valve stem within the container with the bladder. A second attachment member is disposed over the valve stem and over the first attachment member. The second attachment member is outside of the container interposed between the valve stem and a container opening. Rotational movement of the valve stem is fixed relative to one or both of the first and second attachment members. In an example, the valve stem comprises one or more surface features that register with one or more surface features of the first and/or second attachment member to thereby fix relative valve stem rotational movement. In an example, the valve stem surface feature is a flat surface that registers with a flat surface of the second attachment member inside diameter.