Abstract: An explosion protection valve for decoupling system parts or workpieces, in particular for the installation in a pipeline, comprising a housing, a closing body which is axially guided inside the housing on a guide rod and can be displaced from a defined open position in the event of one of the group comprising a pressure and suction wave in the pipeline in at least one closing movement direction into a sealing closed position in which the closing body can be fixed by means of a locking device, a spring assembly, which is in operative connection to the closing body, on the guide rod for holding the closing body in the open position, bearing assemblies each carrying the end of the guide rod, which are each connected to the housing by means of at least one suspension cross-member, and a bearing arrangement, which is subject to play, of the at least one suspension cross-member in a receiving opening on the housing.

Abstract: Apparatus and associated methods relate to a valve having an actuator configured to translate a mass in a plane and a valve element located out of the first plane and configured to translate along a first linear axis. In an illustrative example, at least one of the mass and the valve element may include a magnetic source providing a persistent magnetic field and the other may include a non-magnetized, magnetically permeable mass. Reluctance-induced forces may, for example, translate the valve element towards the mass along the first linear axis when the mass is brought into register with a second linear axis. The first linear axis and the second linear axis may, for example, be colinear. Various embodiments may advantageously provide a valve requiring low energy input for operation.

Abstract: An annular elastomeric packer for a blowout preventer includes a plurality of circumferentially spaced inserts, wherein at least one of the plurality of inserts includes a rib, and a foot pivotally coupled to the rib, and an elastomeric body coupled to the plurality of inserts and including an inner surface, wherein the foot is configured to resist deformation of the elastomeric body in response to the blowout preventer actuating from a first position to a second position.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for detecting water leaks and mitigating the damage caused by the detected leaks. The system may include a processor and a storage device storing instructions that, when executed by the processor, cause the processor to perform operations. The operations may include obtaining sensor data that is generated by one or more flow rate sensors located at a property, obtaining status data that is generated by one or more connected water shutoff valves located at the property, determining, based on (i) the obtained sensor data and (ii) the obtained status data whether a water leak has been detected at the property, and in response to determining, based on (i) the obtained sensor data and (ii) the obtained status data, that a water leak has been detected at the property, initiating performance of one or more water damage mitigation operations.

Abstract: A fluid leakage control apparatus has at least one primary sensor (3), and at least one secondary sensor (5) connected together to communicate with a computer processor unit (13), to open at least one fluid flow valve (such as a solenoid valve), through which fluid such as water or gas can flow. It can be made using flow sensors connected to one or more of motion and sound sensors, and powered by AC mains power or batteries, to form a communication network with a computer or microcomputer. The apparatus may be installed along domestic or industrial piping systems, to monitor and prevent water wastage in the event of a burst pipe by closing off a mains valve (2). Also disclosed is a method of fluid leakage control to monitor sensors to ascertain a burst state, and close off a mains valve (2), preventing fluid wastage.

Abstract: A jetted check valve includes a body with an upper opening and a lower opening. The jetted check valve also includes a primary poppet slidably disposed in the body to allow the flow of fluid from the lower opening and out of the upper opening and prevent the flow of fluid from the upper opening through the lower opening. The jetted check valve further includes a secondary poppet slidably disposed at least partially within the primary poppet to allow the flow of fluid from the lower opening and out of the upper opening and prevent the flow of fluid from the upper opening through the lower opening. A method of removing debris from above a jetted check valve and permitting production fluids to flow up hole through the jetted check valve. The method includes creating a secondary flow path in the jetted check valve to remove debris that settled up hole of the jetted check valve when production of an oil and gas well has been halted.

Abstract: An aircraft pneumatic system including a pneumatic actuator arranged to operate at a pressure value at least equal to a pressure threshold, a line fluidly connected between a pneumatic source and the pneumatic actuator, and a venturi disposed upstream of the line and downstream of the pneumatic source. The venturi is configured to receive a source flow from the source at a mass flow rate, the mass flow rate being between a lower, nominal flow rate value and a higher, graded flow rate value. The venturi is sized such that when the mass flow rate is at the nominal flow rate value, a line pressure inside the line corresponds to a source pressure upstream of the venturi, and when the mass flow rate to the venturi is at the graded flow rate value, the line pressure is less than the source pressure.

Abstract: A gas safety valve for controlling a gas flow includes a valve body providing a body inlet port for coupling to a first gas supply and a body outlet port for coupling to an appliance, the valve body extending along a longitudinal axis between the body inlet port and the body outlet port, the valve body further providing an inlet bore extending downstream from the body inlet port, and an outlet bore extending to the body outlet port. A valve has a valve chamber having a valve inlet and a valve outlet, a ball located within the valve chamber and a valve seat provided at the valve outlet such that the ball is retained in the valve chamber upstream of the valve seat. The valve body includes an internal junction positioned upstream of the valve inlet, and a side inlet port.

Abstract: A damping valve having a damping valve body with at least one flow channel for damping medium. A valve rod is arranged in the flow channel. The valve rod cooperates with a valve disk and a valve seat surface. The valve rod carries a further valve disk that cooperates with a second valve seat surface. The first valve disk together with the first valve seat surface forms a first partial valve having a first permanently open pilot orifice cross section, and the second valve disk together with the second valve seat surface forms a second partial valve having a second pilot orifice cross section, and a shuttle valve is formed which opens one partial valve and closes the other partial valve depending on the flow direction.

Abstract: A method for operating a valve of a pressure vessel system includes determining an actual pressure difference between an inlet pressure at an inlet of the valve and an outlet pressure at an outlet of the valve, and enabling the valve if the actual pressure difference is lower than or equal to a maximum admissible pressure difference of the valve.

Abstract: A system, method and apparatus to transport and distribute hydrogen, store energy at scale, and interconnect locations where large quantities of “green” hydrogen can be produced most advantageously, with cities, towns and rural communities where hydrogen is needed as a clean transportation fuel, industrial feedstock, power source, and for long-term storage of electrical power. A hydrogen distribution pipeline enables use of natural gas, oil and other existing pipelines to transport hydrogen to one or more distribution points; and in one embodiment, integrates a lighter-than-air airship to transport hydrogen between locations where pipelines don't exist or are impractical.

Abstract: A transport refrigeration system having: a first engine (26) configured to power a refrigeration unit (22); a first fuel tank (330) fluidly connected to the first engine through a first fuel line (332); a first shut off valve (450) located within the first fuel line proximate the first fuel tank; a second shut off valve (72) located within the first fuel line proximate the first engine; a sensor system (80) configured to detect at least one of a crash of the transport refrigeration system, a fuel leak in the first fuel line, and an engine stall in the first engine; and a controller (30) configured to close the first shutoff valve and the second shutoff valve when the sensor system detects at least one of a crash of the transport refrigeration system, a fuel leak in the first fuel line, and an engine stall in the first engine.

Abstract: A dual function ram system for a blowout preventer (BOP) includes a first dual function ram that is configured to move within a cavity of the BOP between a withdrawn position to cause the BOP to be in an open configuration and an extended position to cause the BOP to be in a closed configuration. The first dual function ram includes a shearing surface that is configured to shear a tubular within a central bore during a shearing operation and a pipe-sealing surface that is configured to seal against the tubular within the central bore during a pipe-sealing operation.

Abstract: The present invention relates generally to a wireless leak alarm, and wireless valve, apparatus, system, and a method thereof. The present invention may be implemented with leak detectors for any type of fluid, liquid, or gas. The present invention may be implemented with any type of sensory detector, such as, for example, a temperature, a moisture, a Carbon Monoxide, a Carbon Dioxide detector. The present invention allows the use of a Wireless, Bluetooth, Wi-Fi leak detector and monitor. More specifically, aspects of the present invention relate to a system, methods, and apparatus for a Wireless, Bluetooth, Wi-Fi leak detector, monitor and valve controller. The present invention includes the ability to communicate via voice message, text message, email and other wireless communication methods to the property owner, manager, resident, person responsible for a dwelling, call center, or any other designated contact in the event of a fluid or water leak.

Abstract: A plumbing system may include a first conduit that supplies a fluid to a destination device. The plumbing system may also include a second conduit concentric to the first conduit. The second conduit includes an indicator material that changes one or more properties of the fluid supplied to the destination device when the fluid contacts the indicator material via an opening present in the first conduit.

Abstract: A downhole apparatus comprises a piston mounted within a bore and being reconfigurable from a lock configuration to an unlock configuration in response to a pressure sequence applied within the bore. When the piston is in its lock configuration, a lock is supported by the piston such that the lock partially extends into the bore and engages a lock profile of the piston to restrict movement of the piston in a first direction towards its unlock configuration. In response to a first event of the pressure sequence, the piston is moveable in a second direction to desupport the lock and permit the lock to be wholly received into the bore and allow the piston to move in the second direction towards its unlock configuration in response to a subsequent event of the pressure sequence.

Abstract: A flow system comprises a system flow path extending from a system inlet to a system outlet. A pressure module is provided within the system flow path to establish a differential pressure between upstream and downstream sides thereof during flow from the system inlet to the system outlet The system also comprises a valve provided within the system flow path, and a valve actuator in pressure communication with the system flow path on upstream and downstream sides of the pressure module. The valve actuator is driven by a differential pressure established by the pressure module to move between a first position in which the valve is closed, and a second position in which the valve is opened.

Abstract: A fluid delivery line assembly comprising: a valve assembly including: a fluid passageway and a valve control chamber, a valve member disposed within the fluid passageway and movable between closed and open positions, a pressure-operated member disposed in the valve control chamber and operatively connected to the valve member to maintain the valve member in the open position when pressure within the pressure control chamber is above a predetermined opening pressure; a conduit having a main conduit passageway in fluid communication with the fluid passageway of the valve assembly and a secondary conduit passageway in communication with the valve control chamber; and an end connector including a main connector passageway in fluid communication with the main conduit passageway and a secondary connector passageway in fluid communication with the main connector passageway and with the secondary conduit passageway to allow fluid from the main connector passageway to enter the valve control chamber to allow the pres

Abstract: An insert safety valve system includes a valve body including a valve member. The valve body includes a central passage and a flow path arranged radially outwardly of the central passage. A release sub is coupled to the valve body. The release sub is configured and disposed to support a downhole tool. A connector member selectively couples the release sub and the valve body.

Abstract: The invention relates to a miniaturised fluid flow regulating device comprising a fluid flow channel with an inlet portion, an outlet portion and a flow regulation passage between the inlet portion and the outlet portion, an elongated beam element arranged in the flow channel, such that a pressure difference over the inlet portion and the outlet portion causes the beam element to bend and regulate fluid flow in the flow regulation passage. The invention further relates to a breath analysis device comprising such a flow regulating device for regulating a flow of exhaled breath.

Abstract: A method for a fuel system is provided, comprising adjusting a volume of a sealed fuel tank while maintaining spatial compartmentalization of bulk fuel within the sealed fuel tank, and indicating degradation of the sealed fuel tank based on a change in fuel tank pressure. In this way, the fuel tank may be tested for leaks without being unsealed, and without engaging the fuel pump or other elements of the fuel delivery system.

Abstract: A pressurized gas vessel port assembly incorporating a wall; a port extending through the wall; a nipple extending inwardly from the wall and having a hollow bore communicating with the port; a plug received within the hollow bore for movement between first and second positions, the plug residing at an inner end of the nipple at the first position and being displaced outwardly from the first position upon movement toward the second position; a venturi port opening the first nipple's hollow bore, the venturi being positioned outwardly from the first position for inducing an outward flow of the gas within the hollow bore; and incorporating a seat which outwardly overlies the venturi port, the seat being fitted for, upon a completion of the outward movement of the plug toward the second position, annularly contacting the plug and staunching the outward gas flow.

Abstract: Embodiments of the invention provide for a system and method for operating a hydraulic tool near high-voltage components. The hydraulic tool may be connected to couplers and receiving hydraulic fluid from a pump and returning the hydraulic fluid to a tank in an open center system or returning the hydraulic fluid to a tank in a closed center system. In the event of a loss in pressure the valves in the system change state stopping the flow of hydraulic fluid to the hydraulic tool without the use of electrical components.

Abstract: [Object] To have excellent maintenance properties and restrain parallel light (collimated light) from being directly emitted to the outside of an optical connector during non-optical coupling. [Solution] An optical communication connector according to the present disclosure includes: a collimating lens configured to collimate light from an optical transmission path; and a diffusion section arranged on a leading end side with respect to the collimating lens, and configured to diffuse the light from the optical transmission path output from the collimating lens. According to this configuration, in the optical communication in which insertion and removal are frequently performed, it is possible to achieve their safety during non-fitting at the same time while having an advantage because of a collimating signal since light from an optical transmission path is diffused.

Abstract: A dishwasher has a treating chamber for receiving dishes for treatment according to an automatic cycle of operation and a dispensing system for storing and dispensing a treating chemistry to the treating chamber during the cycle of operation. The dishwasher may dispense a treating chemistry when a temperature of a liquid in the treating chamber satisfies a predetermined temperature threshold. The temperature of the liquid may be maintained to satisfy the predetermined temperature threshold for a predetermined period of time based on the treating chemistry.

Abstract: In order to keep the deterioration of water distribution pipes from progressing, a tap water management system is provided with: a water pressure detection unit for detecting the water pressure in at least one location in a water distribution pipe for carrying clean water from a water distribution site to a consumer. and transmitting the detection result as water pressure information; a deterioration detection unit for detecting deterioration in at least one location in a water distribution pipe, and transmitting the detection result as deterioration information; a water distribution planning unit for causing a water distribution plan that is a plan for water distribution pressure to be determined on the basis of information regarding past water demand; a deterioration-reducing water distribution planning unit for deciding, on the basis of the water distribution plan, the water pressure information, and the deterioration information.

Abstract: An air turbine starter includes a transfer tube having a lubrication inlet and a lubrication outlet configured to allow fluid to flow therethrough. A valve is positioned within the transfer tube including a spring. The spring is configured to selectively allow fluid flow within the transfer tube based on fluid pressure differential across the valve. The spring can have three positions: a first position configured to prevent flow within the transfer tube, an intermediate position configured to allow free flow of fluid within the transfer tube, and a compressed positioned to prevent flow to the lubrication outlet.

Abstract: A device for detecting water loss and consumption from commercial and residential commodes is provided. The device includes a water flow sensor and a shut-off assembly. The device has a controller that receives input from the flow sensor and sends a signal to the shut-off assembly whenever excess water flow is detected.

Abstract: A valve assembly for a central tire inflation system is provided. The valve assembly includes a first housing having a first port connected to a second port via a cavity. The second port is in fluid communication with a wheel assembly. A biasing member is disposed in the cavity adjacent a first perforation formed in the first housing. A valve member is contacted by the biasing member. The valve member includes a first frustoconical portion having a continuous outer surface connected to a second portion having a continuous outer surface, a first end connected to the second portion and a second end connected to the first frustoconical portion wherein the continuous outer surfaces of the first frustoconical portion and the second portion allow a pressurized fluid to flow between the housing and the outer surfaces of the valve member.

Abstract: A low water sensor testing apparatus consisting of a 2 piece threaded steel ball valve unit with spring loaded handle connected at one end cavity portion thereof to initial piping emanating from a hot water boiler and connected at the second end cavity portion thereof to an equivalent adapter unit in turn connected to the first end segment of an E-shaped piping unit having its first stem portion connected to a ball valve unit via another adapter unit, its second stem portion connected via yet another adapter unit to a low water sensor unit and, with the second end segment of the E-shaped piping unit being connected to another equivalent adapter unit in turn connected to the first end cavity portion of a three way purge valve unit being connectable within the second cavity end portion thereof to outflow piping leading to a structure's heating system.

Abstract: A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface of the valve. A cylindrical sleeve is disposed around the regulation portion. When the end surface of the valve is in contact with the regulation portion, the sleeve covers a tapered surface of the valve.

Abstract: A gas regulator with a gas-amount display assembly is capable of showing an amount of gas in a gas storage device connected to the gas regulator, and the gas regulator includes a regulating assembly, a detecting assembly, and a display assembly. The detecting assembly has a touch switch and an abutting component selectively abutting the touch switch. The display assembly and the detecting assembly are separated from each other. The display assembly changes its display state according to whether the abutting component abuts the touch switch or not. With the detecting assembly and display assembly separated from each other, the regulating assembly and the detecting assembly can be disposed with the gas storage device at a safe position, and the display assembly may be disposed at a position that can be observed easily. Thus, the user can check the amount of the gas at any time.

Abstract: The system including a sensing device including a pressure sensor configured to measure pressure of water in a water system of a structure during a testing interval when a system shutoff valve of the water system is closed. The sensing device can be configured to generate pressure measurement data representing the pressure of the water as measured by the pressure sensor. The system also can include one or more processing units comprising one or more processors and one or more non-transitory storage media storing machine-executable instructions configured when run on the one or more processors to perform estimating an orifice size of a leak in the water system based on the pressure measurement data. Other embodiments are provided.

Abstract: A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface of the valve. A cylindrical sleeve is disposed around the regulation portion. When the end surface of the valve is in contact with the regulation portion, the sleeve covers a tapered surface of the valve.

Abstract: An automatic shut-off device, comprising a housing member with a hollow opening, an inlet port coupled to a first end of the housing member, an outlet port coupled to a second end of the housing member, a valve coupled to the outlet port, a variable volume chamber within the housing member with an open end facing the inlet port of the housing member and a closed end with flow restriction holes in closed end facing the outlet port of the housing member, a one-way valve disposed in the closed end of the variable volume chamber, and a spring-biased piston within the variable volume chamber with a compressible spring coupled to the piston at the closed end of the chamber wherein the piston is mechanically coupled to the valve.

Abstract: A fluid transfer system includes a transfer device coupled to a dry break coupler. The transfer device includes a valve assembly moveable between an open and a closed position. The valve assembly includes a main valve and a pilot valve. An actuator controls both the main valve and the pilot valve. A cam plate interconnects the actuator and the valve assembly. The cam plate provides a quick acting shutoff to quickly move the valve assembly to the closed position. A pivotal and rotatable connector couples the transfer device to the dry break coupler. A lock is integrated with the actuator to lock the valve assembly in the closed position.

Abstract: A high purity valve (10) includes a valve body (12) having an inlet (40) and an outlet (42) separated by a valve seat (32), and a diaphragm (22) having a central stem (23) that has a first end coupled to a piston (20) for actuating the valve, and a poppet (28) for engaging the valve seat to close the valve. The poppet forms a dual point seal (50/52, 50?/52?) with the valve seat having at least two points of contact between an annular surface (30) of the poppet and the valve seat. The annular surface of the poppet may be either a concave surface or a convex surface that provides the dual point seal. The valve has a retainer (14) adjacent the diaphragm, and the diaphragm has a flexible web (26) that extends radially outward from the central stem. The retainer has a surface (60) adjacent the web, and the surface is spaced apart from the web such that the web does not contact the surface when the valve is pressurized.

Abstract: A water management system for reducing the damage caused by leaks in a structure including a manifold having first and second electronic valves and connected to a supply line. The system also includes a purge line and a connection line attached to the manifold as well as a requesting member with an activating member affixed thereto and a transmitter positioned proximal that signals the first electronic valve to open when the activating member is engaged. A method of using the system to reduce flooding risks in a structure is also disclosed.

Abstract: A safety shut-off device is provided for a liquid gas system for vehicles and/or vehicle trailers, in order to avoid an inadvertent release of gas. The device includes an electromagnetic gas valve for supplying/shutting off the gas, an electronic unit for activating the electromagnetic gas valve, and a flow sensor for determining a current gas flow being discharged from a storage tank. Furthermore, the device includes an evaluation unit for comparing the current gas flow to a previous gas flow or to a gas flow which is indicated by the gas consumers and is to be expected. If, during use, the evaluation unit determines a current gas flow which differs by more than a maximum permissible rate of change from the previous gas flow or from an expected gas flow, the electromagnetic gas valve is activated via the electric unit in order to shut off the supply of gas.

Abstract: The invention relates to a gas flow monitor wherein the closing flow has the same value in a plurality of installation positions. According to the invention, the gas flow monitor is further intended to be suitable for small pressure loss values. Design and production are intended to be as simple as possible. The gas flow monitor according to the invention, comprising a gas-tight housing (1) that has a valve seat (4) for an axially movable closing body (10) in the interior that to is held against the direction of flow in the opening position by spring force, is characterized in that the play of said mounting is greater in the open position and continuously narrows upon beginning the closing movement.

Abstract: In a body, a first passage (6) houses a first piston (8) which is able to be selectively driven by the excess gas flow towards a blocking position and seal. The valve body has a second through-cut (17) intersecting the seal seat (7) of the first frustoconical piston (8). Within this second cut sits a second piston (21), pressing the end (20) thereof down against the end (9) of the protrusion of the first piston seal seat. This second piston (21) is capable of moving the second piston in interference with the end (9) upstream of the first piston seal eliminating the relationship with said seal seat.

Abstract: A valve comprising a drive part having a valve block with at least one outlet opening; a valve part having a tappet that can be moved by a drive, wherein the tappet opens or closes the outlet opening depending on its position; and a spring that is disposed between the valve block and the tappet.

Abstract: The leak detection device is adapted to test the tightness of an inner tank (24) of a valve cell (20) of the vacuum deposition apparatus, either at its filling flange (25) or at its inner tank valve (28). A vacuum deposition apparatus equipped with a helium detector (51) mounted as a by-pass of the output of a high-flow-rate turbomolecular pump (42) which is connected to the vacuum deposition chamber (30) of the vacuum deposition apparatus by a slide gate valve (43). A valve-cell vacuum deposition apparatus equipped with a helium-based leak detection device including gas injection elements (52, 53) adapted to inject a gaseous mixture into the outer enclosure, the gaseous mixture being consisted of pure helium and an inert gas, and a method for detecting a leak in a valve-cell vacuum deposition apparatus are also described.

Abstract: The present invention provides an easily mounted, self-contained, compact fluid leak detection kit and/or method. The kit housing can be mounted by a homeowner or contractor between the wall outlet and the toilet input. When water begins to flow through the kit housing, a sensor such as a flow switch closes and applies voltage to the time delay relay. As long as the flow continues, the relay will count down the amount of preset time. The kit provides an adjustment to set a predetermined delay time, which is easily accessible and adjustable to the normal operating cycle time of any particular toilet. After adjusting the timer to the normal operating cycle time of the toilet, then the kit simply allows normal operation of the toilet as long as flow stops before the flow cycle. However, when a time has elapsed during the flow cycle to thereby indicate a problem leak, the relay will send voltage to a solenoid valve, which will stop the flow.

Abstract: A valve assembly for use in a pneumatic network, includes a body having a first inlet port and a first air discharge port. A main duct includes a convergent portion, a restricted-section portion having a variable area of passage, and a divergent portion. An actuator assembly includes an intake volume and a second inlet port in fluid communication with the intake volume by valve means provided for enabling intake of a second fluid flow through the second inlet port and towards the intake volume, wherein the second fluid flow is drained off through the first discharge port together with the first fluid flow.

Abstract: A sub-surface safety system for hydrocarbon drilling operations is provided and includes at least one casing within a wellbore that extends into a first portion of a formation from the surface of the formation. A shut-in device is positioned in the casing so as to be below the surface of the formation. The well shut-in device defines a device passageway and is operable to sever a drill string extending through the device passageway and form a barrier in the device passageway that restricts wellbore fluids below the barrier from migrating up the casing to the surface.

Abstract: A water management system for reducing the damage caused by leaks in a structure including a manifold having first and second electronic valves and connected to a supply line. The system also includes a purge line and a connection line attached to the manifold as well as a requesting member with an activating member affixed thereto and a transmitter positioned proximal that signals the first electronic valve to open when the activating member is engaged. A method of using the system to reduce flooding risks in a structure is also disclosed.

Abstract: A relief valve for overload protection includes a switching member disposed at the inlet, and a guide pillar in sealed connection with the switching member. The guide pillar is provided with a first water outlet and a second water outlet disposed in the direction of water flowing, and a slidable sleeve is disposed on an outer side of said guide pillar. When the water pipe connected to the outlet cracks, the water pressure at said outlet may drop, which leads to further movement of said slidable sleeve towards the outlet and cause the plug disposed on the top of said slidable sleeve to plug the outlet in a sealed manner, thus closing the outlet.

Abstract: A preferred embodiment of the present invention is directed to a water management system. One aspect of a version of the invention comprises a manifold with separate lines running to separate appliances and fixtures. Each individual line detects leaks, alerts that a leak has occurred, shuts down only the leaking line, and provides a visual cue to alert that the line is leaking. In one embodiment of a version of the invention, the water management system comprises a hot water heater water management system that detects leaks, sounds an alarm, shuts down the water heater power, and drains the water heater. In a preferred embodiment, once the water heater is repaired and refilled, the power is automatically restored.

Abstract: A fluid delivery system which includes a pressurizing device for delivering injection fluid under pressure, a low pressure fluid delivery system, and a pressure isolation mechanism. The pressure isolation mechanism includes a valve housing having a first port associated with the pressurizing device, a second port associated with the low pressure fluid delivery system, an outlet port associated with a patient, and a pressure isolation port for connection with a pressure transducer. A first valve in a normally open position permits fluid communication between the first port and the second port and is movable to a closed position when fluid pressure in the first port increases to a predetermined pressure level. The first valve isolates the pressure isolation port from the first port when in the closed position. A second valve is associated with the second port and regulates fluid flow through the second port.