Abstract: A minimum pressure valve (10) comprising a housing (17) with the valve inlet (11) and the valve outlet (12) connected with each other by a chamber and connecting space (22a, 22b), the minimum pressure valve (10) also comprising a valve body (21) set up in a chamber (20) moveably between a closed position in which the valve inlet (11) is closed and an open position in which the valve inlet (11) is open, the minimum pressure valve (10) also comprising components which are provided with a seal and/or sliding parts (24, 26, 30), whereby a subassembly (22) of the minimum pressure valve (10) can be disassembled and/or assembled through an opening (31) in the housing (17).

Abstract: An apparatus includes a flash tank, a first low side heat exchanger, a second low side heat exchanger, a first compressor, a second compressor, an expansion valve, a desuperheater, a sensor, and a controller. The first compressor compresses a refrigerant from the second low side heat exchanger. The desuperheater removes heat from the refrigerant from the first compressor. The second compressor compresses a mixture of the refrigerant from the first low side heat exchanger and the refrigerant from the first compressor. The expansion valve, actionable by the sensor and the controller, controls a flow of the refrigerant to the first low side heat exchanger such that the flow of refrigerant to the first low side heat exchanger is increased when a temperature of the mixture exceeds a threshold.

Abstract: A pressure regulating valve comprises a valve housing comprising a pressure-regulating chamber having an inlet for high pressure fluid and an outlet for pressure-regulated fluid, and a valve element received in the pressure-regulating chamber and movable axially therein for regulating the pressure of the fluid passing from the inlet to the outlet. The valve element comprises a regulating element having a regulator head slidably and sealingly received in the valve housing, the regulating element extending into the regulating chamber, at least one spring, and an adjustment head for adjusting an initial compression of the at least one spring within the regulating chamber. The at least one spring is integrally formed with and extends between the regulator head and the adjustment head.

Abstract: An active surge chamber for use in a paint supply system comprising a paint channel, a fluid chamber connected to a pressurised fluid supply, a diaphragm, a spring, and means responsive to movement of the diaphragm for effecting connection and disconnection of the pressurised fluid supply to the fluid chamber and for relieving pressure of fluid in the chamber. The paint channel is sealingly separated from the fluid chamber by the diaphragm. The spring has a spring rate such that the force exerted on the diaphragm by the spring restricts movement of the diaphragm over a selected range of pump outlet pressures in order to attenuate the movement of the diaphragm and reduce the susceptibility of the system to unwanted oscillation. Pressure fluctuations in a paint flow induced by usage of a reciprocating pump upstream of the active surge chamber are minimised.

Abstract: A dielectric regulator comprises a regulator and an inlet group. The inlet group comprises: an inlet nozzle assembly and an inlet fitting. The inlet nozzle assembly comprises: a nozzle, a bushing, a first sealing ring, a second sealing ring, a nut, a first dielectric interface, and a second dielectric interface. The nozzle defines a sealing block void, a funnel void, a first cylindrical void, and a polygonal void. The bushing surrounds the nozzle and compresses the first sealing ring between the nozzle and the bushing. The second sealing ring surrounds the nozzle and compressed via the nozzle and the bushing. The first dielectric interface is ring-shaped and is compressed via the nut and the nozzle. The second dielectric interface is ring shaped and is compressed via the nozzle and the inlet fitting. The inlet fitting defines a central void and is threadably engaged with the nozzle assembly via the nut.

Abstract: A pressure regulating valve to regulate a pressure of fuel gas includes a valve seat, a valve element movable into or out of contact with the valve seat to shut off or allow a flow of fuel gas, and a piston placed facing the valve element by interposing the valve seat and being located downstream of the valve element in a flowing direction of the fuel gas. The pressure regulating valve further includes a holder placed more upstream than the valve element in the flowing direction of fuel gas. The holder includes a bottom-closed cylindrical part opening toward the upstream side, and a through hole formed through the bottom-closed cylindrical part from its inner peripheral surface to outer peripheral surface.

Abstract: A regulator valve contain: a housing, a left end cap, a right end cap, and a valve core assembly. The housing includes a left cavity, a right cavity, a valve hole, a left opening, and a right opening. The right cavity has an inlet, the valve hole has an outlet, and between the right cavity and the valve hole is defined a seat portion, the seat portion has an inwardly conical fence, a diameter of which decreases from the right cavity to the valve hole. The left end cap is connected with and closes the left opening. The right end cap is coupled with and closes the right opening. The valve core assembly is inserted through the valve hole and includes a piston portion and a closing portion.

Abstract: Apparatus to regulate fluid flow is disclosed. The apparatus includes a valve member deformable to distribute forces to a valve seat and prevent damage to the valve member.

Abstract: The present invention includes a disposable flow path for an infusion system for communicating between a fluid source and a patient. The flow path comprises a flow restrictor having first and second ends and defining a flow path between the ends. The flow restrictor comprises a plurality of materials, including a first material defining the flow path, which first material is substantially resistant to vapor transmission, and a second material different than the first material defining at least a portion of an outer surface of the flow restrictor. The second material is suitable for joining to other portions of the flow path.

Abstract: A fluid control system for use with toxic or corrosive gases (for example) has been provided that includes a fluid pressure regulator comprising a fluid inlet; a fluid outlet; a first fluid flow path between the fluid inlet and the fluid outlet; a valve seat positioned in the first fluid flow path and dividing the fluid inlet and the fluid outlet; a valve element regulating flow through the valve seat; a generally cylindrical membrane defining an inflatable fluid cavity that moves axially, responsive to inflation; a wall portion of the cavity that moves responsive to inflation and deflation of the cavity; a second fluid flow path communicating between the cavity and a source of pressure outside the cavity; and a link transmitting the movement of the wall portion to the valve element, thereby moving the valve element with respect to the valve seat responsive to inflation and deflation of the cavity.

Abstract: A gas bottle assembly includes a container for containing a pressurized gas, and an operating head, the operating head including a valve member which in the absence of any demand for the gas, is positioned close to a valve seat such as to permit only a minimal flow of gas from the container past the valve seat, and an actuator moveable to move the valve member away from the valve seat thereby to permit a greater flow of gas past the valve seat, to an outlet for use, and wherein the actuator includes a plunger with which the valve member is integral or to which the valve member is affixed, and the actuator includes a piston part which is movable in a piston chamber in one direction in response an actuator spring acting at a first side of the piston part, to move the valve member away from the seat, and in an opposite direction in response to a combination of gas pressure and a valve return spring which is located in the piston chamber at a second opposite side of the piston part to the actuator spring.

Abstract: An improved ambulatory infusion device for dispensing a fluid into a patient includes a flexible bladder enclosure having a first open end a closed second end. The closed second end of the sheath is free to conform to the body of the patient so that the device is comfortable when worn. In other aspects, a pressure regulator of the device is adapted to maintain the outlet pressure within a predetermined range of pressures so that the fluid flow rate is substantially constant during fluid flow. A flow restrictor of the device is formed of flexible tubing.

Abstract: A gas bottle assembly includes a container for containing a pressurized gas, and an operating head, the operating head including a valve member which in the absence of any demand for the gas, is positioned close to a valve seat such as to permit only a minimal flow of gas from the container past the valve seat, and an actuator moveable to move the valve member away from the valve seat thereby to permit a greater flow of gas past the valve seat, to an outlet for use, and wherein the actuator includes a plunger with which the valve member is integral or to which the valve member is affixed, and the actuator includes a piston part which is movable in a piston chamber in one direction in response an actuator spring acting at a first side of the piston part, to move the valve member away from the seat, and in an opposite direction in response to a combination of gas pressure and a valve return spring which is located in the piston chamber at a second opposite side of the piston part to the actuator spring.

Abstract: A pressure regulator having a housing with an inlet port and an outlet port. A plug is located within the housing and dividing the housing into an upper chamber and a lower chamber, with the upper and lower chamber being connected by a vent. The plug includes a fluid path between the inlet port and the bore. A yoke is adapted selectively close the fluid path in the plug. A diaphragm is located in the upper chamber and is connected to the yoke. A biasing member biases the yoke to open the fluid path through the plug. The diaphragm is configured to move the yoke to open the fluid path when pressure in the lower chamber and vented to the upper chamber through the vent is above a predetermined amount. The pressure regulator can also include a second biasing member used to positively close the fluid path through the plug.

Abstract: The present invention relates to a high pressure cleaning device having suds cleaning efficacy comprising a control body, containing a Venturi tube seat at the interior thereof, connected to the output of a pump, one side of the body being an inlet for the feeding of detergent and the other side being connected to a high pressurized air output pipe such that the water stream and the detergent are mixed and formed into suds flowing out from an water outlet of the body to the outside for cleaning purpose, characterized in that a bending opening is provided to the middle section of the of the body connected to the inlet and outlet water passage, and the opening edge of the bending opening, corresponding to the lateral side of the body, a pressure-adjusting device is provided and a plug shaft is inserted at the bending opening and in combination with the conic shape end of the shaft body and a press board mounted at the bottom end of the plug shaft to resist the pressure change of the pressure within the interior