Abstract: A floating ball valve comprising: a housing having an internal cavity and first and second fluid flow ports through which fluid flows selectively in either direction from the first to the second or the second to the first fluid flow ports when the valve is open; a floating ball housed in the cavity and formed having a through hole for passage of fluid the ball being rotatable to open the valve and allow fluid flow through the fluid flow ports and internal cavity and to close the valve and block fluid flow through the fluid flow ports and cavity; and a pressure relief valve (PRV) having a cracking pressure mounted to the floating ball so that the PRV communicates with the through hole, and when the floating ball valve is closed the PRV faces and communicates with the first fluid flow port; wherein the PRV is normally closed whether the floating ball valve is open or closed, and when the floating ball valve is closed, if pressure in the internal cavity exceeds the cracking pressure of the PRV, the PRV opens to

Abstract: A volume liquid fixed-ratio multi-batch mixing valve includes a valve body, including a first inlet liquid chamber, a second inlet liquid chamber and a mixing chamber; a first valve core, controlling liquid inflow into the first inlet liquid chamber; a second valve core, controlling liquid inflow into the second inlet liquid chamber; a liquid drainage valve core, controlling liquid drainage; a rotary shaft includes a first impeller and a second impeller. The first impeller and the second impeller alternately control flow to the first inlet liquid chamber and the second inlet liquid chamber and to the second inlet liquid chamber and the mixing chamber. The first impeller and the second impeller are symmetrically about the rotary shaft; when the first inlet liquid chamber and the second inlet liquid chamber are communicated, the second valve core closes the second inlet liquid chamber and the mixing chamber.

Abstract: There is provided a pipe connection arrangement for a heat exchanger and a method of connecting a pipe to a heat exchanger utilising a pipe connection arrangement. The pipe connection arrangement includes: a metallic block fitting; a flange for coupling to the block fitting; and a seal. The block fitting includes a bore extending therethrough for receiving a pipe for connection to a heat exchanger and the flange includes a bore extending therethrough for receiving the pipe. The block fitting includes a surface that faces the flange when the flange is coupled to the block fitting. The seal is configured for location between and for abutting both the surface of the block fitting and an annular collar of a pipe when it is connected by the pipe connection arrangement. The pipe extends through the bore of the flange and the flange is coupled to the block fitting.

Abstract: The present invention relates to a hydraulic built-in valve (100) for a valve block (10), comprising a sleeve (110) that is introducible into the valve block, and a closing element (130). The sleeve comprises a first end region (111) which is connectable to a control cover. The sleeve comprises a second end region (112) which is at the opposite end from the first end region and is introducible into the control cover, wherein the second end region has, in a frontal end, a frontal opening (114), and the sleeve forms, between the first end region and the second end region, a shell (117), having an outer side and an inner side, and the shell of the sleeve has a multiplicity of shell apertures (119) separated by shell webs (118).

Abstract: In various implementations, a manual actuator may be coupled to a valve to provide the ability to shut off anhydrous ammonia flow through the valve remotely (e.g., in emergencies). The valve may be coupled to anhydrous ammonia tanks, such as nurse tanks and/or storage tanks. The manual actuator may include manual release member, a breakaway member, a handle, and pull cord(s). The handle may allow a coupled valve to be opened and/or closed. The handle may allow the valve to be shut off at the valve, in some implementations. The pull cord(s) may allow a coupled valve to be remotely closed.

Abstract: An apparatus for controlling the distribution of a fluid along a supply line configured to supply a user includes a first hydraulic valve located along the supply line and provided with an inlet, which receives fluid in transit in the supply line; an outlet, which transmits fluid through the first valve to make it continue along the supply line, or which receives fluid coming from a portion of the supply line downstream of the first valve; and a discharge, which discharges outside of the supply line, through the first valve, fluid present in the supply line and coming from a portion of the supply line downstream of the first valve.

Abstract: A shut-off system of the present invention includes a straight pipe made of a polyolefin-based material, and a knife gate, wherein: a semicircular arc-shaped first cutting blade is formed on a distal end side of the knife gate to cut open the straight pipe to form a slit-shaped opening; an arc band-shaped sealing portion is formed on a proximal end side of the knife gate to be in contact with cut surfaces of the straight pipe; the knife gate includes a pair of side edge portions that connect the first cutting blade and the sealing portion; the first cutting blade and the side edge portions bite into an inner circumference surface of the straight pipe along the inner circumference surface; the knife gate is formed in a flat plate shape having a first surface and a second surface, extending from the first cutting blade to the sealing portion and between the pair of side edge portions; the opening extends in a circumferential direction on the straight pipe; and the sealing portion extends from one end of the ope

Abstract: A combined chemical injection and mixing system including an injection stream pipe, a target pipe disposed within the injection stream pipe, and a plurality of injection quills is described. The injection stream pipe encloses the plurality of injection quills, and the plurality of injection quills each independently includes a quill check valve and a quill flange. A method for mixing at least one chemical in a pipeline is also described. The method includes providing a chemical injection and mixing system configured to a pipeline, forming a pipeline treatment system, providing a fluid flow in the pipeline treatment system, injecting at least one chemical via the plurality of injection quills, and mixing the at least one injected chemical in a mixing zone of the chemical injection and mixing system, thereby mixing the at least one injected chemical in the fluid flow.

Abstract: A pulser protection device configured to be coupled to a fuel pump sandwiched between the pulser lines of the fuel. The pulser protection device comprises one uniform body with four substantially rectangular segments. The four substantially rectangular segments includes a first, a second, a third, and a fourth substantially rectangular segment. The second, third, and fourth substantially rectangular segments being bent orthogonally from the first substantially rectangular segment. The pulser device sized to be received between a plurality of pulsers of the fuel pump and if present a mailbox printer of the fuel pump. The method of attachment for pulser within the fuel pump is described herein.

Abstract: Systems, methods, and devices for perforating louver perforations into a pipe are contemplated. Systems, methods, and devices for transporting pipes for perforation are contemplated. Systems, methods, and devices for performing quality control inspections of such perforations contemplated. A pipe may be oriented vertically and raised over a device that punches perforations into the pipe from the inside of the pipe toward the outside of the pipe. Various supports may contact the pipe for stabilization and to facilitate the formation of perforations without removing cut away pieces from the pipe. Electronic monitoring of the features of the pipe facilitate quality control inspection during processing. In this manner, a structurally robust pipe having a series of louver perforations along the pipe may be formed.

Abstract: A valve for a fluid system of a vehicle having a valve housing having a plurality of valve housing openings, a valve body arranged in the valve housing so as to be rotatable about an axis of rotation and having at least one flow-conducting connecting channel for the flow-conducting connection of at least two valve housing openings of the plurality of valve housing openings, a valve seal, arranged between the valve housing and the valve body and having valve seal openings corresponding to the valve housing openings, a valve drive for the automatic rotation of the valve body about the axis of rotation, and a plurality of connecting pieces, corresponding to the valve housing openings, for the flow-conducting connection of the valve to the rest of fluid system.

Abstract: A pressure vessel defines an opening with a shoulder around a periphery of the opening. A door is configured to regulate access to the opening. The door is configured to compress against the shoulder when in the closed position. A first seal is between the door and the shoulder. The first seal touches an interior side of the door and the shoulder when the door is in the closed position. The first seal is configured to seal fluid within the pressure vessel. A second, active seal surrounds a periphery of the opening. The seal is actuable between an engaged position and a disengaged position regardless of a position of the door. The second, active seal touches the periphery of the door, perpendicular to the first seal, when in the engaged position and the door is in the closed position. The second, active seal is configured to seal fluid within the pressure vessel.

Abstract: A compact valve block for a chemical container wherein the coaxial valve block has a housing that can accommodate three valve control mechanisms thus allowing for quick and effective purging without the need for an additional external conduit, valves, and coaxial injector. The advantage is a greatly reduced amount of wetted surface area inside the valve block leading to a significant decrease in the time it takes to purge a system thus allowing for quicker times to change chemical containers.

Abstract: A torque transfer assembly comprising a drive shaft and a driven shaft and a dielectric insert arranged to be positioned between the drive shaft and the driven shaft, the insert assembly comprising a body of dielectric material shaped to form an insulating layer and configured to engage, respectively, with a first shaped engagement feature on the drive shaft and a second shaped engagement feature on the driven shaft, in torque transfer engagement, the insulating layer providing a dielectric barrier between the drive shaft and the driven shaft.

Abstract: A method of cutting and removing a section of prestressed concrete cylinder pipe and then installing a replacement valve while the pipeline is fully pressurized uses a replacement valve body (22) with two cylinders (223, 225) that match the openings of the cut pipe (35). Inside each of the two cylinders (223, 225) is a cut-covering assembly (62) which includes a cylindrical elastomeric seal (26) and spring tube (25), and a cross brace (27) extends between two surfaces within the spring tube (25).

Abstract: A multi-port rotary disc valve includes a valve housing having chamber walls that segregate an internal space of the housing into subchambers that each provide a portion of one or more fluid paths through the valve housing. The valve housing includes valve ports, where each valve port communicates with a subchamber and is an axially-extending through hole that resides in a plane that is common to all valve ports. The valve also includes a diverter assembly that is disposed in one of the subchambers and is configured to control fluid flow through the valve housing. The valve also includes seal assemblies disposed in the chamber so as to be aligned with the diverter assembly along a rotational axis of the diverter assembly.

Abstract: Apparatus (2) for monitoring a set of fuel dispensers (101, 102, . . . 10N) of filing stations (11, 12, . . . 1M), for providing fuel stored in tanks (11) to vehicles, may include interfaces (21) to receive measurements from output probes (301, 302, . . . 30N) measuring fuel flowing through nozzles (111, 112, . . . 10N); measurements from amount probes (31) measuring a stored amount contained within the tank; and receipt data of fuel delivered; a memory (22) to store at least part of said measurements, and a computing means (23). The computing means may be configured for: determining two subsequent fuel deliveries for which stored amounts measured at the start of said deliveries are substantially equals; determining a suspicious situation by comparing said receipt data corresponding to said subsequent fuel deliveries with the sum of measurements provided by said output probes during the time period between these two subsequent deliveries; and triggering an action when a suspicious situation is determined.

Abstract: A sensing device for a hydrant can include a sensor located entirely within an interior cavity of a hydrant body of the hydrant and configured to measure a property of a fluid of a fluid distribution system and an antenna in communication with the sensor and positioned within the interior cavity.

Abstract: A rotary valve rotated by an arm connected to a piston being driven by the pressurized fluid, either water or air. The orientation of the valve body in the valve housing will direct the fluid in one of two directions to move the piston. The arm of the rotary valve is connected to a cam that rotates a shaft connected to the valve body. Two cam rollers are biased towards the outer surface of the rotating cam member. The cam rollers provide a force to the cam to aid in the changing of the orientation of the valve body. There are two bump outs on the cam that correlate to the end of the piston movement so that the rotary valve does not stop at an end point of the piston stroke. The rotary valve may be is utilized in a chemical dosing or chemical application device that is driven by pressurized fluid.

Abstract: A ventilation treatment device and a ventilation-control method are provided. During use, when a headband contacts a headrest, a first valve assembly contacts a second valve assembly to open first air holes and second air holes, thereby communicating a first chamber with a second chamber, such that air from an air source into the first chamber enters the second chamber and further enters a respiratory chamber of a patient connecting apparatus for inhalation by a patient; and when the headband is separated from the headrest, the first valve assembly and the second value assembly are separated to close the first air holes and the second air holes, thereby preventing the air in the first chamber and the second chamber from flowing out through the first air holes and the second air holes, respectively.