A fluid-control device comprises a stack of wafers in which flow components are provided as micro-electro-mechanical systemsMEMS. The flow components are selected from fluid-control components and/or fluid-monitor components. The fluid-control device has a first flow component that is encircled, in a main plane of the stack of wafers, by a second flow component.

A valve assembly includes a housing assembly defining a valve seat, an inlet, an outlet, a flow path, and an aperture located between the inlet and the valve seat. The housing assembly includes a valve body and a valve cap. A traveler is positioned within a first chamber of the valve body and is movable between a first position, in which it engages the valve seat, and a second, displaced position. The traveler includes a plunger that is received within the aperture and slides within the aperture as the traveler moves between the first position and the second position, the plunger defining at least one slot that permits fluid flow therethrough when the traveler is displaced from the valve seat.

A three-way valve assembly includes a housing assembly and a diaphragm drip check. The housing assembly defines an inlet, a return outlet, a dispensing outlet, a return flow path extending from the inlet to the return outlet, and a dispensing flow path extending from the inlet to the dispensing outlet. The diaphragm drip check includes a plunger and a diaphragm retained within a sensing chamber, at least one magnet coupled to the plunger and generating a magnetic field, and a sensing assembly. The plunger is operatively coupled to the diaphragm such that deflection of the diaphragm causes corresponding displacement of the plunger. The sensing assembly includes a printed circuit board and at least one sensor, the printed circuit board positioned on the housing assembly such that the at least one sensor is affected by the at least one magnet as the plunger is displaced within the sensing chamber.

A precision gas regulator adjustment mechanism accurately controls the position of a plunger within a gas regulator. The mechanism includes a cylindrical adjust screw with external threads for securing it into a base atop the regulator's plunger, along with internal threads. A drive screw, threaded into the internal threads of the adjust screw, engages with the plunger upon insertion. A stepper motor paddle inserted into the drive screw's top slot enables rotation when the stepper motor is activated, thereby adjusting the drive screw's position within the adjust screw. Radial and vertical protrusions on the drive screw and adjust screw, respectively, limit rotation, ensuring precise adjustment. The mechanism offers a reliable and controlled means to manipulate gas flow regulation in various industrial applications.

A precision gas regulator adjustment mechanism accurately controls the position of a plunger within a gas regulator. The mechanism includes a cylindrical adjust screw with external threads for securing it into a base atop the regulator's plunger, along with internal threads. A drive screw, threaded into the internal threads of the adjust screw, engages with the plunger upon insertion. A stepper motor paddle inserted into the drive screw's top slot enables rotation when the stepper motor is activated, thereby adjusting the drive screw's position within the adjust screw. Radial and vertical protrusions on the drive screw and adjust screw, respectively, limit rotation, ensuring precise adjustment. The mechanism offers a reliable and controlled means to manipulate gas flow regulation in various industrial applications.

Some embodiments provide irrigation generator systems that include a main conduit comprising an inlet conduit and an outlet conduit; a flow control system positioned within the main conduit; a generator conduit comprising a generator inlet conduit and a generator outlet conduit, wherein the generator inlet conduit is fluidly coupled with the main conduit upstream of the flow control system, the generator outlet conduit is fluidly coupled with the main conduit downstream of the flow control system; and a generator comprising a rotor assembly cooperated with generator conduit to be physically activated by a flow of fluid through the generator conduit causing rotation of the rotor assembly and generates electrical power. The flow control system transitions between a closed state to the open state in response to a water pressure exceeding a pressure threshold.