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: An example internal relief valve disclosed herein includes a relief valve seat coupled to a first end of the relief valve stem and to engage a first side of a sensing apparatus to prevent fluid flow between the first side of the sensing apparatus and a second side of the sensing apparatus when the internal relief valve is in a closed position. A bleed hole within a surface of the sensing apparatus and separate from the opening of the sensing apparatus is dimensioned to provide a controlled flow rate between the first side and the second side of the sensing apparatus when the internal relief valve is in an open position. A seal is disposed along a body of the relief valve stem upstream from the bleed hole and the valve seat to prevent fluid flow between the first side of the sensing apparatus and the second side of the sensing apparatus via the opening of the sensing apparatus when the relief valve is in the open position.

Abstract: A quick release gas pressure regulator having a primary pressure zone, a secondary pressure zone, and a gas bottle connection zone within the main body. A pressure-regulating device is positioned within the secondary pressure zone of the main body. A gas chamber sealing plug is disposed at the front portion of the first pressure chamber of the main body. An external axial pressure relief passage is formed at the gas chamber plug. A positioning ring seat includes an internal axial pressure relief passage communicating with the external axial pressure relief passage. A pressure relief O-ring is positioned at the joint between the internal axial pressure relief passage and the external axial pressure relief passage. A gas supply back-up post is divided by the pressure relief O-ring into a sealing portion and a pressure relief portion. A pushing member radially passes through the main body and the positioning ring seat, and having a pushing inclination facing the internal end of the gas supply back-up post.

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 diaphragm controlled bypass valve includes a diaphragm valve portion and a needle valve portion. The diaphragm valve portion regulates pressurized gas supplied from a pump to determine whether or not to open or close a needle valve. The needle valve portion includes an inlet port, an outlet port and a flow pathway defined between the inlet and outlet ports. A needle pin is disposed within the flow pathway and is coupled to a diaphragm positioned within the diaphragm valve portion. When the diaphragm is displaced in response to changes in pressure, the needle valve pin is likewise displaced which opens and closes the flow pathway. A second flowpath disposed in the needle valve portion communicates with the inlet port to redirect the supply of pressurized gas to a relief port.

Abstract: A pressure regulator which includes a body. The body has inner walls defining an inlet port. Slidably moving within the inlet port is a hollow stem of a valve and piston assembly. The hollow stem is in slidable gas sealing contact with the inlet port. The valve and piston assembly includes a piston having a piston head with a valved opening therethrough. In the opening in the piston head is the arm of a plug. A body of the plug lies within the sliding piston held in place by a keeper spring, the keeper spring for maintaining a removed end of the plug arm against inner walls of the body. With such a structure, movement of the piston and valve assembly will be capable of unseating the plug from the valved opening in the piston allowing gas to flow from the hollow stem at the inlet port through an inner volume of the piston, through the valved opening of the piston head and into a regulated gas chamber defined in part by the inner walls of the body and an outer surface of the piston head.

Abstract: An air compressor utilizing an electronic control system. A pneumatically controlled regulator is provided for controlling output pressure for an air compressor. Digital gauges are provided on the air compressor to replace conventional mechanical gauges. A variable speed motor is used, which in turn varies the speed of the pump. Tools are provided for an air compressor that are capable of transmitting a signal to the air compressor indicating a desired pressure and/or motor speed at which the air compressor is to operate.

Abstract: A fitting for engagement with a cylindrical compressed gas bottle. The fitting includes a valve for regulating gas between a regulated port of the body of the fitting and an outlet port of the body of the fitting. The body of the fitting is cylindrical and dimensioned to be hand held, the fitting includes a handle for pivotal engagement with the body, the handle to control the flow of gas from the outlet port.

Abstract: An electro-pneumatic air pressure regulator includes a primary pressure introduction port, a secondary pressure output port, a pilot pressure chamber, a main valve for opening and closing a communicating conduit, a floating piston which actuates the main valve, a nozzle conduit via which the pilot pressure chamber is communicatively connected to the atmosphere, a flapper which includes a leaf spring facing an open end of the nozzle conduit, and an electromagnetic drive system which deforms the leaf spring to vary a position of the flapper relative to the open end of the nozzle conduit in accordance with the magnitude of an analogue input signal. The flapper includes a conical projection which projects toward the open end of the nozzle conduit. A conical recess corresponding to the conical projection is formed on an end face of the nozzle conduit around the open end thereof.

Abstract: The internally piloted dome loaded pressure reducing regulator includes a regulator body with a main valve portion and a pilot valve portion. The inlet is fluidly connected to the main valve bore which in turn is connected to the pilot valve bore. Each of the pilot and main valve members are spring urged to a closed position while the pilot valve is moved to an open position by a diaphragm when there is a decrease of pressure in the pilot chamber. A continuous fluid connection is provided from the pilot chamber, including through the main valve member, to a control chamber portion below a piston which is moved under pressure to open the main valve member. The piston has a bleed hole bottom chamber portion to the top control portion which in turn is fluidly connected to the outlet.

Abstract: A valve having a valve body (1) including an internal chamber (21) of axis (AA) having an upstream compartment (21a) of diameter (Dam) and a downstream compartment (21b) of diameter (Dav), with Dam<Dav. A fluid inlet orifice (10) is formed in the wall of the valve body (1) and opens into the upstream compartment (21a). A piston body (2) that can move in translation along the axis (AA) inside the internal chamber (21) and which is located between the fluid inlet orifice (10) and a fluid outlet orifice, has a front face (2a) located on the same side as the fluid inlet orifice (10), a rear face (2b) located on the same side as the fluid outlet orifice, and a lateral wall (2c) located between the front face (2a) and the rear face (2b). The lateral wall (2c) has a cylindrical first portion (P1) of diameter (D1) and a cylindrical second portion (P2) of second diameter (D2), with D1<D2 and D2<Dav.

Abstract: A pneumatic pressure regulator assembly including a regulator housing having an inlet adapted for fluid communication with a supply of pneumatic pressure, an outlet adapted to provide pneumatic pressure to a downstream pneumatically actuated device at a regulated pressure, and a regulator valve assembly. The regulator valve assembly has a valve member movably supported within the regulator housing between an open and a closed position. A piston assembly acts to bias the valve member to its open position when the outlet pressure is below a predetermined value. The piston assembly includes a pressure responsive surface defining a geometric shape with a major and a minor axis wherein the major axis is greater than the minor axis. The piston assembly is responsive to pneumatic pressure flowing between the inlet and the outlet to reduce the biasing force acting on the valve member such that the valve member moves to its closed position when the outlet pressure exceeds a predetermined value.

Abstract: A spacer type pressure reducing valve for adjusting a fluid pressure is mounted between a solenoid valve, which switches a flowing direction of pressurized fluid, and a base, which supplies pressurized fluid to the solenoid valve. First and second pressure-reducing portions are integrally accommodated in a valve body of the spacer type pressure reducing valve. The spacer type pressure reducing valve is compact and is capable of adjusting pressure in two output ports.

Abstract: A pneumatic pressure regulator assembly including a regulator housing having an inlet adapted for fluid communication with a supply of pneumatic pressure, an outlet adapted to provide pneumatic pressure to a downstream pneumatically actuated device at a regulated pressure, and a regulator valve assembly. The regulator valve assembly has a valve member movably supported within the regulator housing between an open and a closed position. A piston assembly acts to bias the valve member to its open position when the outlet pressure is below a predetermined value. The piston assembly includes a pressure responsive surface defining a geometric shape with a major and a minor axis wherein the major axis is greater than the minor axis. The piston assembly is responsive to pneumatic pressure flowing between the inlet and the outlet to reduce the biasing force acting on the valve member such that the valve member moves to its closed position when the outlet pressure exceeds a predetermined value.

Abstract: A pressure regulating valve having secondary venting measures. It comprises a control member for the control of the fluid connection between a primary duct and a secondary duct. The position of the control member is able to be influenced by a venting aperture also under the control of the control member and serving for venting the secondary duct. The venting opening is so arranged on the setting member that it is located outside the comparison chamber and in this respect either directly in the secondary duct or in a region in communication with the secondary duct.

Abstract: The invention relates to a valve comprising a valve body (1) comprising an internal chamber (21) of axis (AA) comprising an upstream compartment (21a) of diameter (Dam) and a downstream compartment (21b) of diameter (Dav), with Dam<Dav. A fluid inlet orifice (10) is formed in the wall of the said valve body (1) and opens into the upstream compartment (21a). A piston body (2) that can move in translation along the axis (AA) inside the said internal chamber (21) and which is located between the fluid inlet orifice (10) and a fluid outlet orifice, has a front face (2a) located on the same side as the fluid inlet orifice (10), a rear face (2b) located on the same side as the fluid outlet orifice, and a lateral wall (2c) located between the said front face (2a) and the said rear face (2b). The lateral wall (2c) has a cylindrical first portion (P1) of diameter (D1) and a cylindrical second portion (P2) of second diameter (D2), with D1<D2 and D2<Dav.

Abstract: A pressure-regulating valve particularly useful in a diesel internal combustion engine with a closed crankcase is provided. The valve includes a body coupled to a bonnet with an internal movable piston. The movable piston maintains a substantially constant pressure in the crankcase by adjusting a fluid flow in response to changes in pressure. The movable piston also includes an integral relief valve to prevent overpressure in the event of a crankcase pressure in excess of the designed limits of the pressure-regulating valve.

Abstract: A pressure regulating valve having secondary venting measures. It comprises a control member for the control of the fluid connection between a primary duct and a secondary duct. The position of the control member is able to be influenced by a venting aperture also under the control of the control member and serving for venting the secondary duct. The venting opening is so arranged on the setting member that it is located outside the comparison chamber and in this respect either directly in the secondary duct or in a region in communication with the secondary duct.

Abstract: A poultry drinker system includes a number of drinker lines each supplied from a common high pressure water supply through a water pressure regulator. Each regulator includes a reference spring establishing a default minimum water pressure. A centralized remote control system provides regulated low pressure air to the water pressure regulators to augment the reference spring force and remotely adjust the water pressure in the drinker lines. The remote control system periodically applies higher pressure air to the water pressure regulators to increase water pressure and flow rates and sequentially flush the drinker lines. The remote control system includes a source of high pressure air, an air pressure regulator for supplying lower pressure air and a stack of 3-way valves for applying low or high pressure air to each water pressure regulator.