Abstract: A remotely operated safety valve is provided for terminating flow through the valve. The safety valve includes an electromagnet for holding the safety valve open, and a swing plate for closing the safety valve. A power supply is provided for powering the electromagnet, and an electrical conductor extends between the shutdown switch, the power supply, and the electromagnet. A connector spaced along the conductor is separable during a separation of a towing vehicle from the towed vehicle. The safety valve automatically closes in response to one of activation of the shutdown switch or the termination of power to the electromagnet.

Abstract: A product transfer valve (1) includes a valve body (3), an inlet port (2), an outlet port (18). A safety interlock mechanism includes a segmented collar (22) with internal threads (23) for mounting the valve to a connection. A safety collar (6) is axially movable between a valve open position and a valve closed position, and causes movement of the segmented collar. An interference member (12) engages the safety collar (6) to prevent inadvertent radial outward movement of the internal threads on the segmented collar until the safety collar is moved to the valve closed position.

Abstract: A ball valve is provided for threaded connection to a separable component 72 having male threads 74. A housing 10 contains a ball 12 selectively rotatable for passing fluid through the housing, and a flange member 20 threadably secured to the valve housing. A stop ring 16 is positioned outward of the valve housing and engages the flange member. A coupling 20 is threadably secured to the stop ring and includes female threads for engagement with male threads on the separable component.

Abstract: A thermowell is provided for positioning on a pipeline or tank to measure the temperature. The thermowell comprises a head for receiving a probe, and the well has a closed end. An elongated hollow tubular connects the head and the well. The tubular includes one or more tubular parts, each of a selected axial length, joined by a friction welding to one of the more of the head, the well or another of the tubular parts.

Abstract: A product transfer valve (1) includes a valve body (3), an inlet port (2), an outlet port (18). A safety interlock mechanism includes a segmented collar (22) with internal threads (23) for mounting the valve to a connection. A safety collar (6) is axially movable between a valve open position and a valve closed position, and causes movement of the segmented collar. An interference member (12) is supported on the cam operated mechanism (8) and engages the safety collar (6) to prevent inadvertent radial outward movement of the internal threads on the segmented collar until the safety collar is moved to the valve closed position.

Abstract: A compressible sealing ring assembly seals an annulus between a radially outer member and a radially inner member. The sealing ring comprises one or more sealing ring members (28), a radially outer wall for sealing with the inner wall of the radially outer member and radially inner wall for sealing with the outer wall of the radially inner member. A compression ring member (10) having a concave lower surface and a convex upper surface exerts an axial force on a sealing ring member to deform the sealing ring member to maintain a seal.

Abstract: The cone plug valve includes a valve body, a fluid inlet and a fluid outlet, a valve stem, and a cone supported on the valve stem. The metal cone is rotatably separate from the valve stem but moves axially in response to axially movement of the valve stem. A seat is fixably positioned within the valve body for sealing engagement with the cone, which has a sealing surface extending outward from the cone shaped exterior surface for sealing with the seat to close off flow through the valve body.

Abstract: A plug valve includes a valve body (10) and a valve stem (30) supporting a plug (32). A seat is formed on and is integral with the valve body. The seat includes a seating surface (16) above and below the passageway connecting the fluid inlet and the fluid outlet. The seating surface provides a seal with the plug. A method of forming the seat on the valve body is disclosed.

Abstract: A thermowell is provided for positioning on a pipeline or tank to measure the temperature. The thermowell comprises a head for receiving a probe, and the well has a closed end. An elongated hollow tubular connects the head and the well. The tubular includes one or more tubular parts, each of a selected axial length, joined by a friction welding to one of the more of the head, the well or another of the tubular parts.

Abstract: An anhydrous ammonia distribution system includes a portable nurse tank 12 powered by an operator cab 13. One or more distributors 22 receive anhydrous ammonia from the nurse tank, and a plurality of knife hoses 30 deliver anhydrous ammonia from a distributor to a selected number of knives 31 for delivery to the field. Pressure gauge 32, 34 is provided for monitoring pressure at one or more distributors, and a camera 42 positioned within enclosure 40 transmits a reading from the pressure gauge to the operator cab, thereby alerting the operator to a malfunction in the delivery system.

Abstract: A ball valve is provided for threaded connection to a separable component 72 having male threads 74. A housing 10 contains a ball 12 selectively rotatable for passing fluid through the housing, and a flange member 20 threadably secured to the valve housing. A stop ring 16 is positioned outward of the valve housing and engages the flange member. A coupling 20 is threadably secured to the stop ring and includes female threads for engagement with male threads on the separable component.

Abstract: A product transfer valve (1) includes a valve body (3), an inlet port (2), an outlet port (18). A safety interlock mechanism includes a segmented collar (22) with internal threads (23) for mounting the valve to a connection. A safety collar (6) is axially movable between a valve open position and a valve closed position, and causes movement of the segmented collar. An interference member (12) engages the safety collar (6) to prevent inadvertent radial outward movement of the internal threads on the segmented collar until the safety collar is moved to the valve closed position.

Abstract: A ball valve is provided for threaded connection to a separable component 72 having male threads 74. A housing 10 contains a ball 12 selectively rotatable for passing fluid through the housing, and a flange member 20 threadably secured to the valve housing. A stop ring 16 is positioned outward of the valve housing and engages the flange member. A coupling 20 is threadably secured to the stop ring and includes female threads for engagement with male threads on the separable component.

Abstract: An electrical generator (10) powered by fluid pressure in a flow line includes a turbine housing (23) and control valve (11). The turbine housing houses a rotor (29) and a plurality of turbine blades (33) which are rotated by fluid passing from the flow line through the turbine housing. A bearing (22) within the turbine housing guides rotation of the rotor, and supports a plurality of magnets (28). Cap member (23) is sealed to the turbine housing, and a stator (40) external of the cap member generates electricity in response to a plurality of rotating magnets.

Abstract: The valve bonnet assembly (1) includes a bonnet stem and a valve member supported on the stem. Rotation of the stem (16) axially moves the valve member (12) along the stem axis into and out of sealing engagement with a seat (11). The bonnet stem includes multiple start threads, and the thread pitch divided by a number of starting threads is greater than or equal to 6 and less than or equal to 9.

Abstract: An NH3 applicator implement is equipped with a hitch arrangement for automatically effecting a connection with a tongue of an NH3 nurse tank wagon. A quick-connect coupler assembly is provided for connecting the transfer hose of the nurse tank wagon to the supply hose of the implement. The quick-connect coupler assembly includes a first coupler section mounted to the applicator implement for powered, guided movement into engagement with a second coupler section mounted to the tongue of the nurse tank wagon. An electro-hydraulic control system including relay logic is used to first lock the fully coupled coupler sections together and then to engage the flow of NH3 by remote actuation of a main on/off valve located at the nurse tank.