Abstract: The invention relates to a gas pressure regulator (1). The gas pressure regulator (1) has a gas inlet (100), a gas outlet (101) and a rotatably supported lever arm (62) for pressure regulation. The lever arm (62) is mechanically coupled to a movement pin (64) and a sealing punch (63) at its end. The movement pin (64) and the sealing punch (63) are arranged within a housing (80) in such a manner and connected to the gas inlet (100) in such a manner that a gas intruding via the gas inlet (100) pushes against the movement pin (64) and the sealing punch (63) with balanced forces.

Abstract: A vent valve opens to provide a fluid path from a regulated pressure port to a vent port, a supply valve opens to provide a fluid path from the regulated pressure port to a supply pressure port. A control piston has a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply pressure valve.

Abstract: Axial gas pressure regulator in which in a housing (01) is axially positioned a balanced nozzle (02), slidingly movably placed in sliding gaskets (23). Nozzle (02) is pressed by spring (10) and extension (03), while a seat (05) with a gasket (07) is mounted opposite to it, which is squeezed between the housing (01) and an outlet flange (04) and in which are performed openings (29). On the upper side of the housing (01) is mounted a carrier (30) of a second housing (21), consisting of a lower part (08) and an upper part (09), between which is squeezed a membrane (22). On the upper and lower side of membrane (22) is placed on each side one plate (33) which are in the central part connected by a support (34) and a tightener (35), and in the center of which the piston (12) is fixed with a performed choking channel (11) in the axis.

Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body has a through-bore and an external flange. The first disk has one or more windows and an aperture, and is fixed on an exterior surface of the body. The second disk is slidable along the exterior surface of the body and is biased into contact with the first disk by a biasing element that is positioned between the external flange and the second disk.

Abstract: The isolation valve assembly includes a ball member stabilized relative to a ceramic ring, an upper ball housing and a lower ball seat with a set of shifting bars, a set of locking bars, and a set of supporting bars. The shifting bars rotate the ball member between opened and closed configurations, while the locking bars and supporting bars stabilize the ball member. The supporting bars are off set from the shifting bars and locking bars, and the supporting bars are anchored to the assembly separate from the locking bars and shifting bars. The actuation of the shifting bars is independent from the locking bars and the supporting bars so that the ball member can be held in the opened or closed configuration with more stability.

Abstract: A supporting member supporting a valve body includes a supporting member body having a semispherical bottom portion that makes contact with the top face of the valve body and a securing recess that is provided in the center and at a predetermined axial location to adjoin a through hole provided in the valve body, and a securing member including an engaging portion that has a form of a shaft having a predetermined diameter made of an elastic material and protrudes from a proximal end and a securing projection that swells out from a predetermined axial location of the shaft portion to fit into a securing recess provided in a through hole in the supporting member body.

Abstract: A device for stopping a flow of fluid in a fixed length of tube with an actuator simple in construction is provided. The stopping device is free of direct touch with the fluid inside the tube, expected not to obstruct the flow in the tube as permitted as possible at normal condition, expected to perform both detection and control with a single device, and further invulnerable to kinds of fluids. The device for stopping a flow of fluid includes a tube holder to keep a tube in looped configuration, a movable part pressing the looped configuration of the tube. Pressing of the looped configuration of the tube make a snapped bent to stop the flow of fluid passed through the tube. Putting the movable part back into place results in the tube's returning from the configuration having the bent, allowing the fluid flowing again through the tube.

Abstract: A disc assembly for a fluid flow control device includes an annular disc member, a disc holder, a relief bore, at least one branch passage, and an annular recess formed in the disc holder. The relief bore is formed in a first side of the disc holder along a central axis of the assembly. The annular recess is formed in the first side of the disc holder and is disposed coaxially with the relief bore for accommodating at least a portion of the annular disc member. The at least one branch passage is formed in the disc holder and provides fluid communication between the relief bore and the annular recess such that during use pressurized fluid that accumulates in the annular recess between the disc member and the disc holder can be relieved through the relief bore via the branch passage.

Abstract: The apparatus uses an electrical signal controlled valve, for instance, a proportional solenoid controlled valve, controlled by a controller, to control a pilot operated valve for regulating pressure of fluid in a port thereof in connection with a fluid operated system. A pressure sensor in connection with the port is used to monitor the regulated pressure. The regulated pressurized fluid in the port is also used, as required, as a component of the pilot signal. The valves are configured such that when the electrical control signal is absent or the electrically controlled valve is unresponsive thereto, the presence of pressurized fluid at a predetermined supply pressure, will automatically operate the pilot operated valve in cooperation with a biasing element thereof, for delivering pressurized fluid at a minimum or reduced regulated pressure.

Abstract: A cylinder valve comprising a body including a mounting end for attachment in the opening of a pressurized fluid cylinder, a internal withdrawing circuit comprising a first end located at the mounting end and a second end located at an outlet port located in the body, the withdrawing circuit comprising, an isolation valve and a regulating device for regulating selectively the flowrate and/or the pressure of the fluid flowing in the withdrawing circuit, the isolation valve and the regulating device being controlled by manual actuating organ(s) located on the body, the actuating organ(s) controlling the regulating device being mobile relative to the body between a first position setting a flow rate or a regulated pressure to defined minimum value and at least a second position setting a flow rate or a regulated pressure to a defined maximum value.

Abstract: A gas engine regulator includes a decompression chamber defined internally of the regulator and having a gas inlet through which liquefied gas fuel enters and a gas outlet through which the gas fuel exits. The gas inlet is provided at one end side of the decompression chamber while the gas outlet is provided at an opposite end side laterally spaced via a space from the one end side. The regulator also includes a partitioning wall disposed to surround the gas outlet and having a gas passage communicating with the gas outlet, the gas passage having a passage inlet disposed upwardly of the gas inlet.

Abstract: A manually operable gas regulator includes a knob, an upper cover, a return spring, a movable block, a pressure adjusting spring, a diaphragm assembly, a body, and a lever pivotably mounted to the body. An upper end of the diaphragm assembly abuts a lower end of the pressure adjusting spring whose upper end abuts a lower end of the movable block. An upper end of the movable block abuts a lower end of the movable block securely engaged with the upper cover and the knob. Rotation of the knob causes upward/downward movement of an axle of the diaphragm assembly to pivot the lever. A plug on an end of the lever is moved to accurately control the flow of gas and to accurately close or open an output end of an inlet passage of the body.

Abstract: An actuator for a fluid regulator includes two or more control springs operatively connected to a diaphragm such that at least two of the control springs bias the diaphragm independently in parallel and have different natural frequencies. A method for retrofitting a prior art actuator to include a second control spring is also disclosed.

Abstract: Systems and methods for a three chamber compensation network for pressure regulators are disclosed. For example, one described pressure regulator includes: an inlet port; a primary chamber coupled to the inlet port by a main valve; an outlet chamber coupled to the primary chamber by one or more venturi; and a control chamber coupled to one or more of the venturi by one or more sensing holes, the control chamber comprising a movable piston configured to vary the position of the main valve.

Abstract: A fluid regulating device comprises an actuator with upper and lower housing components. The upper and lower housing components are secured together at mating flanges via a plurality of fasteners. The upper housing component is formed with a vent to contain a relief valve, which exhausts fluid to the atmosphere under overpressure conditions. The upper housing component is constructed such that it does not require a pedestal or fins extending between the vent and the flange, which advantageously provides a completely unobstructed, continuous, ring-shaped flange for receiving and manipulating the fasteners during assembly and/or maintenance of the regulating device.

Abstract: A regulator comprises a regulator valve and an actuator. The actuator is coupled to the regulator valve and comprises a control element for controlling the flow of fluid through the regulator valve. The actuator is additionally equipped with a pressure averaging sense tube to sense the actual pressure at the outlet of the regulator valve. The actual pressure is then supplied to a sensing element such as a diaphragm of the actuator to adjust the position of the control element. The pressure averaging sense tube includes an open sensing end and an elongated slot. The elongated slot advantageously senses and averages the pressure across the length of the sense tube to maximize the accuracy of the pressure signal supplied to the sensing element.

Abstract: A gas regulator includes an actuator, a regulator valve, and a secondary device. Downstream pressure feedback is provided to the actuator and the secondary device via a Pitot tube disposed within an outlet of the regulator valve. The Pitot tube has a first branch having an end connected to the actuator to place the actuator control cavity and diaphragm in fluid communication with downstream pressure within the outlet for maintaining the outlet pressure at an actuator setpoint pressure. The Pitot tube also has a second branch having an end connected to the secondary device to place the interior of the secondary device in fluid communication with downstream pressure within the outlet for responding to changes in the downstream pressure when the outlet pressure diverges from a predetermined normal operating pressure range.

Abstract: A gas regulator includes an actuator, a valve, and a balanced port housing disposed within the valve for flow conditioning to convert turbulent flow within the valve to laminar flow when the fluid reaches the sensing point of a Pitot tube disposed within the outlet of the valve. The balancing port housing includes an opening through a sidewall and disposed between a valve port of the valve and the outlet. The opening may include a partial obstruction, such as baffles or a mesh screen over which the fluid flows to convert the turbulent flow to laminar flow. The regulator may further include balanced trim having a balancing diaphragm in fluid communication with the upstream pressure to apply a force to a valve disc of the valve in the opposite direction of the force applied to the valve disc by the upstream pressure so that the upstream pressure does not affect the regulator's control of the downstream pressure.

Abstract: Apparatus to configure fluid regulators are described. In one example, a stem guide for use with a fluid regulator is described. The stem guide includes a body having an opening to slidably receive a valve stem and an outer surface having a plurality of circumferential seals that removably couple the body within a bore of a regulator casing and align the body with the regulator casing or a valve.

Abstract: A regulator valve includes a duct, a valve element, and an actuator. The duct has an inner surface defining a flow passage. The valve element is movably disposed within the flow passage between an open position, in which fluid is permitted to flow through the flow passage, and a closed position, in which fluid is restricted from flowing through the flow passage. The actuator is coupled to the valve element and at least facilitates movement thereof between the closed and open positions and locking of the valve element in an intermediate position therebetween. The actuator comprises a shaft and a locking system. The shaft is coupled to the valve element and moves therewith. The locking system is coupled to the shaft and is activated when the valve element is in the intermediate position, to thereby at least inhibit movement of the shaft and the valve element.

Abstract: A regulator comprises a regulator valve and an actuator. The regulator valve comprises a valve body equipped with a customized valve port. That is, the valve seat is designed to have a customized seat height depending on a diameter of an orifice through the valve port, a longitudinal dimension of an orifice through the valve port, and/or a flow capacity of the valve port. Such a design advantageously maximizes the efficiency at which gas flows through the regulator. The actuator is coupled to the valve body and comprises a valve disc disposed within the valve body and adapted for displacement between a closed position engaging the valve seat and an open position spaced from the valve seat.

Abstract: The present invention provides an integral cantilever monitoring device for a regulator having a positionable vent port that may be disposed proximate the lowest point of the monitoring device to allow drainage of liquids accumulating within the monitoring device due to humidity and precipitation. The monitoring device may also include a connection module allowing the monitoring device to be rotated independently of the actuator and valve body of the regulator to accommodate varying installation environments. The connection module may further include an inlet port for connection to a downstream pressure feedback line when the regulator valve body and connection module portions of a primary downstream pressure feedback passage are out of alignment due to rotation of the monitoring device.

Abstract: Valve stem and valve plug apparatus for use with fluid regulators are described herein. An example fluid regulator includes a flow control member having a body that includes a longitudinal bore between a first end and a second end and a valve stem is disposed in the bore of the flow control member. A connector slidably couples the valve stem and the flow control member such that the connector moves away from the flow control member to relieve the flow control member of a loading force imparted by a loading element of the fluid regulator when the flow control member sealingly engages a valve seat of the fluid regulator.

Abstract: A gas pressure regulator comprising a housing. The housing includes a regulator cap and a regulator body. The regulator cap and the regulator body engage one another through the use of bayonets on one of the regulator cap or the regulator body and pockets on the other of the cap or body. The regulator housing includes a piston having a piston stem in a piston head. The piston stem has a channel and a seat seal on a removed end thereof, the channel for carrying gas to the piston head. The piston head also engages a piston spring. The regulator housing also includes an adjustable seat for receiving a high pressure compressed gas at one end and providing it to the piston stem at a second end. The adjustable seat is adjustable, such that when it is adjusted away from the piston stem, higher cutoff pressure is required than when it is closer.

Abstract: A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a direction of flow of fluid through the regulator housing; a first chamber above the piston and a second chamber below the piston; a passage establishing fluid communication between the outlet end and the first chamber; and at least one pinch arm pivotally mounted at one end within the regulator housing and movable in response to movement of the piston by an increase in fluid pressure in the first chamber so that an opposite end of the at least one pinch arm will pinch a portion of the flow tube and thereby restrict flow through the flow tube.

Abstract: A pressure regulator valve including a valve seat separating a fluid flowpath into an upstream region and a downstream region. A valve closure member is mounted on a valve stem, the valve stem operable to vary a separation between the valve seat and the valve closure member. A diaphragm is mounted in a housing, mobile portions of the diaphragm responding to changes of pressure in the downstream region by changing position relative to the housing. A diaphragm stem is attached to the diaphragm such that movement of the mobile portions of the diaphragm causes movement of the diaphragm stem. A linkage mechanically couples the diaphragm stem to the valve stem. The linkage includes four connected links, the links attached to each other at connection points. The linkage having a mechanical advantage which varies as the positions of the diaphragm stem and valve stem change.

Abstract: A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a direction of flow of fluid through the regulator housing; a first chamber above the piston and a second chamber below the piston; a passage establishing fluid communication between the outlet end and the first chamber; and at least one pinch arm pivotally mounted at one end within the regulator housing and movable in response to movement of the piston by an increase in fluid pressure in the first chamber so that an opposite end of the at least one pinch arm will pinch a portion of the flow tube and thereby restrict flow through the flow tube.

Abstract: A pressure reducing fluid regulator having a housing with a flange including a plurality of ear-shaped protrusions is disclosed. Each of the protrusions includes at least one aperture configured to receive fastener such that the circumferential spacing between first and second fasteners is less than the circumferential spacing between the second fastener and a third fastener. The regulator includes a valve having a valve seat, a valve disc, a valve stem coupled to the valve disc and a valve guide that holds the valve stem. A lever having a first end coupled to the valve stem and a second end coupled to a diaphragm applies a force to the valve stem in a direction that is non-parallel to the longitudinal axis of the valve stem to cause the valve stem to frictionally engage the valve guide. The valve stem includes a stop that limits travel of the valve stem and disc toward the valve seat.

Abstract: An improved fuel flow control device of a diaphragm-type carburetor having a lever which can be easily coupled to a flow control valve body. The lever has a resilient portion which flexes to permit a cooperating portion of the valve body to pass thereby and into an opening in the lever. After the valve body is received in the opening, the resilient portion returns at least in part to its unflexed position to retain the valve body and prevent its separation from the lever.