A fluid regulator includes a balance port regulator valve and an actuator coupled to the regulator valve. The regulator valve has an inlet, an outlet, a valve port disposed between the inlet and the outlet, and a valve disc movable along a longitudinal axis between a closed position in which the valve disc sealingly engages the valve port and an open position in which the valve disc is spaced apart from the valve port. The actuator is responsive to fluid pressure to move an actuator stem along the longitudinal axis. A connector assembly operably and removably connects the valve disc to the actuator stem.

A pressure regulator for a fuel cell system may include: a housing having an inlet port into which gas is introduced, an outlet port through which gas is discharged, and an regulated pressure chamber connected to an outside through the outlet port; a piston moving up and down in the housing, having a main flow path penetrating through an inside of the housing and a pressure acting portion applying a pressure of gas in the regulated pressure chamber of the housing, and selectively communicating between the inlet port and the regulated pressure chamber of the housing through the main flow path as the piston moves up and down; and a spring provided in the housing to elastically support the pressure acting portion of the piston on an opposite side of the regulated pressure chamber.

A low pressure regulator for a high pressure fuel pump includes a standard damping orifice, providing a constant level of piston movement damping by enabling a fluid pathway between a spring chamber and a return line. The low pressure regulator also includes a further damping orifice, which is covered by the piston when discharge port holes are open, the further damping orifice providing a further, variable level of piston movement damping by providing a further fluid pathway between the spring chamber and return line. The further damping orifice is open in a hydraulic accumulator mode and closed in a regulator mode, thereby reducing pressure spikes caused by insufficient spring chamber filling.

A clutch regulator for vehicle comprises a main body provided with an oil passage inside thereof; an opening and closing member provided inside of the main body in a slide manner to open and close the oil passage; an elastic member configured to elastically press the opening and closing member toward the oil passage side; and a plug member installed in the main body to support the elastic member.

A filter-included energy-saving large-capacity direct-acting precision pressure regulation valve includes a main body that is formed of a pressure regulation seat, a pressure regulation filter valve, and a protective cap arranged in sequence from top to bottom. The pressure regulation filter valve includes a main channel through which a primary side pressure and a secondary side pressure may flow. The main channel includes a primary valve port and a secondary valve port arranged therein for controlling and regulating the secondary side pressure and flow in a stage-wise manner. A flowrate straight rod assembly includes a straight rod fit to a pressure plunger ring. A straight rod spherical seat and a straight rod holder are coupled to an upper section of the straight rod and a secondary valve port spring supports a lower section of the straight rod. The pressure plunger ring is supported on a primary valve port the spring.

A pressure regulator includes a piston assembly having a primary piston, secondary piston, and valve seat positioned inside an internal chamber divided into a primary chamber and a secondary chamber, such that the primary piston and valve seat are positioned inside the primary chamber and the secondary piston is positioned inside the secondary chamber, where the piston assembly moves longitudinally along the axis of the internal chamber in response to the pressures exerted on the primary piston and valve seat by a working liquid flowing into the primary chamber, and where a supplemental fluid is selectively introduced into the secondary chamber to exert a force on the secondary piston to modify the longitudinal movement of the piston assembly and thereby regulate flow of the working fluid through the primary chamber.

A regulating piston for a pressure regulating shut-off valve comprises: a tubular sleeve; a first closed end; a second open end; a port defined in the tubular sleeve between the first and second ends, arranged to permit fluid flow between the exterior and interior of the regulating piston; and a support structure disposed within the piston arranged to direct fluid flow between the port and the second open end. The piston can be included in a pressure regulating shut-off valve, and methods for manufacturing the piston and valve.

A pressure regulating system includes a valve including a valve inlet and a valve outlet, a regulating piston positioned in a fluid pathway between the valve inlet and the valve outlet, a chamber in fluid communication with the regulating piston, a pressure setting valve in fluid communication with the chamber, a solenoid valve in fluid communication with the chamber and a sense line fluidly communicating with the valve inlet with the solenoid valve. The pressure setting valve is configured to vent gas to an ambient environment when a pressure within the chamber exceeds a threshold value. The solenoid valve is configured to move from a first position to a second position, the first position fluidly connecting the chamber with the sense line, and the second position fluidly connecting the chamber to the ambient environment (and thereby disconnecting the sense line from the chamber).

Provided is a hose including a first connector assembly including a regulator assembly, a second connector assembly, and a hose assembly coupled to the first and second connector assemblies. The hose assembly includes an inner hose member having first and second ends, an outer hose member having first and second ends, a first hose connector assembly coupled to the first ends of the inner hose member and outer hose member and the first connector assembly, and a second hose connector assembly coupled to the second ends of the inner hose member and outer hose member and the second connector assembly.

A gauge for a hybrid pressure and flowgauge regulator includes first indicia and second indicia. The first indicia provides an indication of a flow rate of a gas exiting an outlet of the hybrid pressure and flowgauge regulator when the gas exits with a pressure below a gauge threshold pressure. The second indicia provides an indication of the pressure of the gas exiting the outlet of the hybrid pressure and flowgauge regulator when the pressure of the gas exiting the outlet is above the gauge threshold pressure.