Abstract: The intention is to provide an actuator which makes it possible to change the opening time and to manually lock the supply of gas. For this purpose, the actuator consists of a housing (9) which is closed by a cover (10). A working diaphragm (8) is clamped between the housing (9) and the cover (10) and subdivides a space enclosed by the housing (9) and the cover (10) into a working pressure chamber (11) and an outlet pressure chamber (13). A lever (15) which is supported on the working diaphragm (8) and acts on a gas valve (2) via a drive plunger (16) is pivotably mounted in the housing (9). The actuator also has an adjustable pressure control valve (6) and a solenoid valve (7). When an inlet pressure line (12) is closed, the solenoid valve (7) opens a connecting channel (28) between the working pressure chamber (11) and the outlet pressure chamber (13). In contrast, in the open position, the inlet pressure line (12) is connected to the working pressure chamber (11) and to the pressure chamber (21).

Abstract: An automatic balancing valve is disclosed which is equipped with choking means that can be operated manually with a ring nut placed below the actuating member of the shutter and aligned axially therewith. Advantageously, the dimensions of the ring nut are larger in plan view compared to the plan view dimensions of the actuating member so as to allow its rotation without removing the actuating member.

Abstract: A valve structure for a fluid pressure device. A valve element (50) for constituting a pressure reducing valve (10) is provided with a first housing (58) which is interconnected with a stem (48), a second housing (60) which is provided on the outer peripheral side of the first housing (58), and packing (62) which is provided between the first housing (58) and the second housing (60). The packing (62) is mounted and sandwiched between a tapered section (66) of the first housing (58) and an outer wall section (74) of the second housing (60), and thereby the packing (62) is affixed. A first tube section (64) of the first housing (58) is inserted into a second tube section (70) of the second housing (60), and the first housing (58) and the second housing (60) are affixed integrally to each other by, for example, welding or adhesion.

Abstract: To provide a fluid pressure regulation apparatus and a fuel supply apparatus which are compact in arrangement and simple in construction, a pressure regulator includes a housing, a pressure adjustment member constituted by a partition wall forming together with the housing a pressure adjustment member held in communication with a fluid introduction opening and having the pressure adjustment chamber brought into communication with a fluid discharge opening in response to the pressure of fluid in the pressure adjustment chamber. The pressure regulator is capable of adjusting the fluid pressure in the pressure adjustment chamber to a preliminarily set pressure, and has one surface side thereof forming an area of a pressure receiving range receiving the fluid pressure, the area being variably set and the set pressure being varied in response to the area of the pressure receiving range.

Abstract: There is provided a fluid controller having an enhanced vibration preventing characteristic without affecting pressure controlling operations. A valve element 4 is moved with respect to a valve seat 3 due to a change of balance between a fluid pressure acting on a diaphragm 10 and an elastic force of a pressure-setting spring 13, thereby controlling a pressure of a fluid. A vibration prevention member 17 is placed in a disk-shaped movable member 12 which moves integrally with the diaphragm 10. The vibration prevention member 17 includes a casing which incorporates therein a weight member interposed between elastic members.

Abstract: Pressure regulating valve for controlling the pressure at which a pressurized propellant gas is injected into a container containing a liquid for driving said liquid out of the container, said valve comprising: A first and a second polymeric shells, the first shell comprising a gas inlet and outlet openings, and the second shell containing means for resiliency biasing. A polymeric membrane, clamped between the first and second shells, thus defining a first and a second chambers sealingly separated by the membrane. A joint between the first and second polymeric shells, strong enough to withstand the pressures reigning in either chamber and ensuring fluid tightness between the two chambers; wherein, all polymeric components of said pressure regulating valve are made of the same polymer class.

Abstract: The present invention provides for an integrated valve regulator assembly that comprises an integral body having a base portion that includes an axis for mounting on and coaxially with the neck portion of a pressurized source vessel and an assembly outlet, a defined internal passage in the integral body that extends through and between the base portion of the integral body and the assembly outlet, a sub-atmospheric pressure regulator assembled within the integral body of the integrated valve regulator assembly, an isolation valve positioned within the defined internal passage of the integral body and located downstream from and in communication with the sub-atmospheric pressure regulator, and a filling port disposed between the axis for mounting on and coaxially with the neck portion of the pressurized source vessel and the sub-atmospheric pressure regulator.

Abstract: Excess flow valve devices, which are responsive to pressure and flow conditions in a bi-directional system, including structures to restrict flow in one direction through openings of a stopper of an excess flow valve based on balancing forces from at least a spring and a frictional force caused by the flow. Bi-directional system employing at least one pressure delayer responsive to pressure and flow impulses to protect a tank valve of a storage tank or a regulator during a refill phase or a discharge phase.

Abstract: A pressure-regulating valve comprises: a core assembly, a slidable member, and a biasing member. The core assembly comprises an intake section, a diverter section and an output section. The slidable member has a collar and at least one internal flow path terminating at first and second openings in its inner surface. If the slidable member is in a first position, fluid can pass through the valve. If the slidable member is in a second position, fluid cannot pass through the valve.

Abstract: Temperature-controlled pressure regulators are described. An example temperature-controlled pressure regulator described herein includes a regulator body having an inlet fluidly coupled to an outlet via a first passageway. A heat block is disposed within the regulator body and receives at least a portion of the first passageway. The heat block is to provide heat to the process fluid as the process fluid flows through the heat block via the first passageway, which separates the process fluid from the heat block.

Abstract: A hydraulic valve arrangement is disclosed. In particular, a regulating-valve arrangement of a variable displacement pump is disclosed, wherein a valve piston of a valve is pre-stressed into a basic position via a spring arrangement. The spring arrangement is supported on an expander.

Abstract: A high pressure control valve system with a valve body with an inlet and an outlet, whereby the outlet is shaped by at least one radially oriented opening in the valve body, an essentially discoidally shaped valve seat arranged on the valve body between inlet and outlet and features a valve body bore that connects inlet and outlet, a sealing element that is appropriately arranged on an actuating element in order to close the valve bore, and an actuating device suitably shaped to move the actuating element in such a way as to cause the opening and closing of the valve, characterized in that the valve seat on the exit site features a revolving extension, extending from a foot print axially in direction of the opening.

Abstract: Embodiments of the present invention provide improved microfluidic devices and related apparatus, systems, and methods. Methods are provided for reducing mixing times during use of microfluidic devices. Microfluidic devices and related methods of manufacturing are provided with increased manufacturing yield rates. Improved apparatus and related systems are provided for supplying controlled pressure to microfluidic devices. Methods and related microfluidic devices are provided for reducing dehydration of microfluidic devices during use. Microfluidic devices and related methods are provided with improved sample to reagent mixture ratio control. Microfluidic devices and systems are provided with improved resistance to compression fixture pressure induced failures. Methods and systems for conducting temperature controlled reactions using microfluidic devices are provided that reduce condensation levels within the microfluidic device.

Abstract: A regulator (108) comprising a first chamber (132), and second chamber (134) and an actuator (130). The second chamber (134) is coupled to the first chamber (132) through an aperture (156). The actuator (130) is arranged to the adjust the size of the aperture (156) according to a pressure differential between fluid pressure in the first chamber (132) and a pressure reference (36). The rate of change of the cross sectional area of the aperture (156) is arranged to have a non-linear response to a change in the pressure differential.

Abstract: A control assembly for a fluid flow control device includes a control element, a load spring, and a spring clip. The control element can be movably disposed for controlling fluid flow, and the load spring biases the control element into a predetermined position. The spring clip contacts the load spring at a plurality of points to dampen vibrations experienced by the load spring, thereby reducing and./or eliminating resonance. The spring clip includes a body plate and first and second opposing arm plates extending away from the body plate. Each arm plate includes a proximal end adjacent the body plate, a distal end spaced away from the body plate, and a finger extending upwardly away from the distal end. A corner at an intersection between the finger and the distal end includes a contoured edge for facilitating attachment of the load spring to the spring clip.

Abstract: A device has an annulus having a first end and a second end. A valve plate is coupled to the first end of the annulus by a fastener, wherein the valve plate is adapted to contact a valve seat on a hydrogen producing fuel cover. A diaphragm is coupled to the second end of the annulus by a fastener, wherein the annulus extends through a container for holding the hydrogen producing fuel and wherein the diaphragm moves the valve plate relative to the valve seat responsive to a different in pressure across the diaphragm.

Abstract: A pressure type flow rate control reference allows the performance of flow rate calibrations of a flow rate controller on all types of gases, including corrosive gases, at low costs, and also has excellent flow rate control accuracy. The pressure type flow rate control reference includes a pressure controller for adjusting the pressure of a calibration gas from a calibration gas supply source, a first volume provided on the downstream side of a pressure controller, a first connection mouth of an uncalibrated flow rate controller provided on the downstream side of the first volume, a reference pressure type flow rate controller connected to a second connection mouth on the downstream side of the uncalibrated flow rate controller, a second volume provided on the downstream side of a reference pressure type flow rate controller, and an evacuation device provided on the downstream side of the second volume.

Abstract: A pressure regulator (100) is provided. The pressure regulator (100) includes various features that reduce the risk of internal leaking. The pressure regulator (100) includes a regulator body (101) including a fluid inlet (107) with a valve seat (106) and a fluid outlet (108) and a cap (102) coupled to the regulator body (101). The pressure regulator (100) also includes a diaphragm (103) with a first side (103a) exposed to the fluid inlet (107) and the fluid outlet (108) and a second side (103b) exposed to the cap (102). The diaphragm (103) can frictionally engage the regulator body (101) to form a fluid tight seal. Additionally, the diaphragm (103) may include a socket (118) formed in the diaphragm (103) and a valve member (105) including a valve stem (110) with a ball (118) that is adapted to engage the socket (118) formed in the diaphragm (103) in order to couple the valve member (105) to the diaphragm (103).

Abstract: Embodiments of a fluid flow regulating device and methods of using the same are described. Certain embodiments manages fluid flow between one or more input ports and output ports at least partly in response to fluid pressure changes and/or by a mechanism driven by fluid flow, optionally without using electrical power.

Abstract: Regulators for regulating gas that is delivered in discrete charges from a tank that contains compressed gas to a paintball gun, marker, or other application that utilizes or is activated by pressure controlled discrete charges of gas. The regulator has holding, discharge, and fill configurations, controlled by the movement of a piston member in a pressurized chamber, and the activation of a poppet valve on the discharge of the system. One or two low side pressure relief members are provided to prevent the over-pressurization of the pressurized chamber. An externally threaded sleeve member is non-rotatably, but axially slidably received on a distal portion of the body of the regulator so that the sleeve member and distal portion may be axially slidably disengaged, and the regulator can be rotationally positioned so that the pressure gauge is easily viewed by an operator.

Abstract: A gas regulator includes a housing and a pressure regulator positioned within the housing along a first axis for controlling the pressure of gas received from a pressurized source. A flow meter controls the flow rate of the gas received from the pressure regulator. The flow meter is positioned relative to the housing along a second axis, transverse to the first axis. An outlet nozzle member has a nozzle stem and is positioned along the first axis. The outlet nozzle member receives the gas from the flow meter and delivers the gas through the nozzle stem.

Abstract: A pressure regulator is provided for adjusting a pressure in a hydraulic flow, which pressure can be at least partially regulated using a solenoid. The solenoid can adjust a position of a driver that comprises a solenoid armature, a solenoid armature rod, and a delimiting part. The solenoid armature can be arranged around a solenoid armature rod and can be axially displaceable inside a solenoid chamber in a housing. The solenoid armature rod can have one or more holes that fluidly interconnect a first chamber to a solenoid chamber of the regulator. The delimiting part can be arranged around the solenoid armature rod adjacent to the housing and be configured such that clearances between the delimiting part, the solenoid armature rod, and the housing enable a certain radial movement between the driver and the housing.

Abstract: In an LPG fuel heating device in which a heat source for heating LPG fuel circulating through a gas passage is placed in a passage forming body outside of the gas passage, the passage forming body is provided with a passage-longitudinal-direction protruding wall (125) extending in a normal circulation direction of the gas passage (93) and multiple passage-width-direction protruding walls (126) being orthogonal to the normal circulation direction (124) and extending in a width direction of the gas passage (93) so as to enter the gas passage (93); multiple passage chambers (127) and multiple communicating passages (128, 129), which make mutually adjacent ones of the passage chambers (127) communicate with each other in a way that makes the LPG fuel sequentially circulate through the passage chambers (127), are formed in the gas passage (93) through cooperation among the passage forming body, the passage-longitudinal-direction protruding wall (125) and the passage-width-direction protruding walls (126); and the

Abstract: A device for self-regulation and reduction of an outlet pressure (Ps), starting from an inlet pressure (Pe), designed to equip a paint spraying device, the self-regulation and reduction device including an element (28) for equalizing the output pressure at a pilot pressure (Pp) and a valve (30) that makes it possible to regulate and reduce the inlet pressure controlled by the equalizing element, so as to limit the outlet pressure by keeping the pressure essentially constant in an independent manner, the valve including a passage opening (42) more or less sealed by a sealing element (46) connected by a rod (50) to the equalizing elements (28), characterized in that the rod (50) connecting the equalizing element (28) and the sealing element (46) do not pass through the passage opening (42), the equalizing element (28) and the sealing element (46) being placed on the same side relative to the passage opening.

Abstract: In a pressure compensation type flow rate control valve, overshoot of a flow rate when an upstream pressure is abruptly increased is suppressed. A first variable orifice 11 is provided on the side of an inflow opening and a second variable orifice 15 is provided on the side of an outflow opening. As the spool 3 is displaced from its initial position by a pressure of fluid entering when the upstream fluid pressure is increased, the opening of the first variable orifice 11 is gradually reduced, and the opening of the second variable orifice 15 is gradually increased. Since the second variable orifice 15 on the side of the outflow opening is previously reduced, even if the upstream pressure is abruptly increased, fluid more than a predetermined amount does not flow out toward the downstream.

Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.

Abstract: A flow regulator valve having multiple stages is described herein. The flow regulator valve provides a base amount of propane when the engine is idling and provides additional propane to the engine based on the engine's requirements.

Abstract: In order to achieve seal durability and bring about a damping action for a piston-type pressure regulating valve, a pressure regulating valve of the present invention is characterized by a valve moving member moving in such a manner as to cause communication or block communication between a primary chamber and a secondary chamber within a case, wherein a plurality of central members are arranged between the case and the valve moving member and the plurality of central members are taken to be different materials. It is then possible to bring about both a damping action and seal durability using the central members by providing central members of different materials.

Abstract: A pneumatic system includes a first line, a second line, and a valve. The first line is configured to be connected to a container, and to convey a flow of gas from a source to the container. The second line is arranged co-axially with the first line and is in communication with gas in the container. The valve is connected in series with the first line, between the source and the container. Furthermore, the valve is in communication with the second line and is configured to control the flow of gas through the first line as a function of a characteristic of the gas in the container, as communicated by the second line.

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 fluid regulator includes a valve block having an inlet arranged for connection to a gas supply and an outlet arranged for connection to an item of gas equipment and defining a flow path. The valve block may include one or more of a pressure regulator, a metering valve, and an on-off switch disposed in the flow path. A rotatable pinion operatively is coupled to the metering valve, and a hand control is coupled to the valve block and rotatable about an axis and includes a toothed rack movable with the hand control. A spring biases the toothed rack toward pinion to provide improved precision and/or less play between internal components. The fluid regulator they also include a balanced gear assembly for rotating a control rod of the valve, and further may be adapted to provide various visual indicators of the on-off the state of the device.

Abstract: A regulated automatic changeover valve is provided. A device engages the first and second high pressure gas source for providing a lower pressure gas source downstream of the changeover valve. An eccentric is provided between two valve assemblies, with each valve assembly having a piston with a valve arm projecting therefrom. The eccentric moves a block selectively closer to one of the two valve assemblies. Each valve assembly is engaged to a high pressure source, such as a tank of compressed gas. When a first tank begins to run low, the valve will automatically begin drawing from the second valve assembly. A tank that has run low of compressed gas may be changed out while the second, non-exhausted gas continues to feed the downstream device at a regulated gas pressure.

Abstract: A pressure regulation device adapted to maintain a predetermined pressure drop. The device includes: a fluid inlet; a turbine rotated by a flowing fluid; a shaft rotated by said turbine; a generator in mechanical communication with said shaft; a fluid outlet. Wherein said predetermined pressure drop across said turbine is converted into useful work by said generator.

Abstract: Embodiments of the present invention are directed toward pressure controllers and calibrators for setting or measuring pressures in test devices. In one embodiment, the pressure controller contains a dual reference pressure controller. The dual reference pressure controller is operable to maintain two different pressures relative to a reference pressure. The first pressure being a relatively fixed amount greater than the reference pressure and the second pressure being a relatively fixed amount less than the reference pressure.

Abstract: A buoyancy adjustment device utilizes an inflation valve connected between the diver's breathing gas supply and a compartment to admit gas into the compartment to increase the diver's buoyancy. An exhaust valve connects between the compartment and the outside of the vest, to release gas from the compartment to the surrounding environment to decrease the diver's buoyancy. A hand-operated controller connected to the inflation valve, when caused to move from a neutral position to an inflation position, actuates the inflation valve and admits gas to the compartment. The hand-operated controller is also connected to the exhaust valve via a flexible pushrod so that, when caused to move from the neutral position to an exhaust position, actuates the exhaust valve and releases gas from the compartment. The flexible push rod is housed in a sleeve that is totally contained within the compartment.

Abstract: It is proposed to design a fluid flux regulating unit (1, 28, 35, 41, 53, 56, 58), comprising a first fluid port (3), a second fluid port (4) and a valve means (6) , in a way that the valve means (6) comprises at least one fluid pressure balancing means (13, 25, 30, 31, 33, 52).

Abstract: A valve for a fuel pressure regulator includes a shaft defining a longitudinal axis. The shaft has a protuberance defining a mating surface that is positionable against a valve seat of the regulator and a flow surface that intersects the mating surface. A first angle is defined between the mating surface and a plane that is orthogonal to the longitudinal axis of the shaft. A second angle is defined between the flow surface and a plane that is orthogonal to the longitudinal axis. The first angle and the second angle are both oblique with respect to the longitudinal axis of the shaft.

Abstract: A regulator comprised of a housing having an ingress for connection to a source of gas at a first pressure and an egress adapted for supplying gas at a lower pressure than the first pressure. A fixed member, located within the housing, separates the ingress from the egress and has at least one opening extending therethrough. A throttling tube is located in the housing and extends through the opening in the fixed member to control the flow of gas from the ingress to the egress. The throttling tube has a first end juxtaposed with a compressible disk and a second end juxtaposed with a valve seat. An actuation lever responds to a pressure within the housing to move the throttling tube into and out of engagement with the valve seat. The throttling tube responds to a force provided by the disk when it is out of engagement with valve seat.

Abstract: Embodiments of the present invention are directed toward pressure controllers and calibrators for setting or measuring pressures in test devices. In one embodiment, the pressure controller contains a dual reference pressure controller. The dual reference pressure controller is operable to maintain two different pressures relative to a reference pressure. The first pressure being a relatively fixed amount greater than the reference pressure and the second pressure being a relatively fixed amount less than the reference pressure.

Abstract: Excess flow valve devices, which are responsive to pressure and flow conditions in a bi-directional system, including structures to restrict flow in one direction through openings of a stopper of an excess flow valve based on balancing forces from at least a spring and a frictional force caused by the flow. Bi-directional system employing at least one pressure delayer responsive to pressure and flow impulses to protect a tank valve of a storage tank or a regulator during a refill phase or a discharge phase.

Abstract: Disclosed is a cylindrical, single-component two-stage regulator for controlling a pressure and a flow rate of a gas. The regulator includes a housing for holding the two stages having an ingress adapted for connection to a source of gas at a high input pressure and an egress adapted for supplying gas at a lower output pressure than the high input pressure; a first stage for reducing the pressure of the gas from the high input pressure to a fixed intermediate pressure; and a second stage for reducing the pressure of the gas from the fixed intermediate pressure to the lower output pressure and regulating the flow rate of the gas out of the egress. One application of the present invention is for use in SCUBA (Self-Contained Underwater Breathing Apparatus) applications, where it replaces the traditional two-component user-adjustable regulator. The regulator may be made out of stainless steel, and is small enough to fit into a user's mouthpiece.

Abstract: A gassing system includes a gassing device, a pressure regulator in communication with the gassing device and a gas source and a PLC electrically connected to the pressure regulator. In addition, the system includes a removable orifice in communication with the pressure regulator, wherein the pressure regulator controls gas flow responsive to a signal sent from the PLC and wherein gas exiting the pressure regulator flows directly into and through the orifice and directly into the gassing device.

Abstract: A pressure reducing device of a high pressure vessel includes primarily a housing, a gas guiding element and a gas directing element. The gas guiding element is defined with a first gas entraining passage, a second gas entraining passage, and a holding space into which a limiting element can be put and the gas directing element can be inserted. A contact surface of the gas directing element with the limiting element is formed with a gas seal part which is provided with an arc surface. Through sealing the arc surface with a groove on the limiting element, a gas seal effect can be improved and gas stability can be maintained for a long time.

Abstract: A universal pressure reducer is provided for a self-contained breathing apparatus. The universal pressure reducer includes an inlet, a reducer module in fluid communication with the inlet, a pneumatic alarm mechanism, and a pneumatic transfer valve assembly that controls the actuation of the alarm mechanism by controlling the flow of pressurized air thereto. The transfer valve assembly is arranged to actuate the alarm mechanism when the pressure of air entering the reducer through the inlet drops to a predetermined trigger level. The predetermined trigger level is automatically selected based on a rated capacity of a pressure vessel to which the inlet is connected through a cylinder valve.

Abstract: A speed controller valve system for regulating an opening speed and a closing speed of a pressure reducing valve includes a first inlet couplable to a main valve inlet of a pressure reducing valve. An outlet is couplable to a power chamber of the pressure reducing valve to control a flow of fluid between the outlet and the power chamber to control an opening and/or a closing of the pressure reducing valve. An interior chamber connects the first inlet and the outlet. The chamber receives a resilient member connected to a tapered valve poppet received in the first inlet and moveable in response to a flow of fluid at a pre-set pressure from the main valve inlet to the first inlet. The poppet is located in the chamber and the resilient member includes a resiliency to regulate an amount of movement of the poppet at the pre-set pressure to regulate a flow between the first inlet and the power chamber of the pressure reducing valve.

Abstract: A paintball gun having an internal pressure regulator is provided. The paintball gun includes a body, a launching tunnel, a rear lead shaft, the pressure regulator, and a back cover. A hollow barrel of the body allows the launching tunnel and the rear lead shaft to be accommodated successively therein. The pressure regulator is received in the rear lead shaft. The back cover is screwed to the body. Thereby, pressurized air coming from a gas cylinder is directly introduced to the pressure regulator so as for the paintball gun to dispense with any external air duct. Thus, the paintball gun poses no risk of duct burst and requires less assembling operation and fewer fixtures, thus reducing manufacturing costs.

Abstract: A battery/self powered electronic pressure gauge having electronic measurement, control, output, and display capability is described having the flexibility of using a sampling rate that is variable, based on either a random sampling scheme or one that learns from the history of use during the previous minutes, hours, days, months, etc. The variable sampling rate enables extended operational time before replacement of the battery. The pressure gauge can be configured to sense “intent” to change pressure in the outlet line and to revise its sampling protocol. This “intent” can be defined by the detection of the proximity of a user's hand to the pressure regulator.

Abstract: A water pressure regulator includes a sealing member and a body having a diaphragm assembly. The diaphragm assembly is positioned and secured within the body to define first and second chambers. The diaphragm assembly has a force acting thereon from within the second chamber. The first chamber defines first and second zones and a passageway therebetween. An inlet of the body is configured to provide water to the first zone and an outlet of the body is configured to deliver water out of the second zone. The sealing member is positioned within the first zone. The sealing member seals the passageway by a force of the water in the first zone acting upon the sealing member and by a gravitational force acting upon the sealing member. The sealing member is formed in the shape of a spherical ball. The water pressure regulator may be used in a watering system.

Abstract: A gas pressure regulator comprises a main body having a first, gas inlet pipe and a second, gas outlet pipe, a calibrated gas passage through which gas flows from the first pipe to the second pipe, a shutter housed at least partially in the main body and mobile lengthwise along a first defined line to adjust the opening of the calibrated passage, a device for actuating the shutter and a regulator spring unit opposing the movement of the shutter.

Abstract: A gas pressure regulator for use with a gas delivery system is provided. The gas delivery system defines an outer profile, and the gas pressure regulator comprises a plurality of elements arranged such that a substantial portion of the elements of the gas pressure regulator are disposed within the profile of the gas delivery system to reduce a number of impact locations on the gas pressure regulator should the gas delivery system be mishandled during use.