Disclosed example pressure transducers include: an absolute pressure sensor comprising a fluid input and configured to output a signal representative of a pressure sensed at the fluid input; and an outer insulation housing around the absolute pressure sensor, wherein a volume between the housing and the absolute pressure sensor comprises a vacuum pressure.

A pressure sensor assembly includes a sensor mounted in a sensor holder. The sensor holder is mounted to a lower end of a rod. The rod extends from a subterranean water supply to ambient. The lower end of the assembly forms a sliding seal with an upwardly opening cylindrical seat communicating with the subterranean water supply. An upper end of the pressure sensor assembly includes a cap locking the assembly to a protective pipe surrounding the rod.

A detection system adapted for a liquid-cooling system includes a pressurizing device and at least one pressure sensor, the pressurizing device is configured to connect to and to pressure the liquid-cooling system, the pressure sensor is configured to measure a transient pressure response in response to detecting residual air bubbles in the liquid-cooling system.

A pressure sensor assembly includes a pressure sensor, a pedestal and an electrically conductive header having a header cavity. The pressure sensor includes, an electrically conductive sensing layer having a sensor diaphragm, an electrically conductive backing layer having a bottom surface that is bonded to the sensing layer, an electrically insulative layer having a bottom surface that is bonded to a top surface of the backing layer, and a sensor element having an electrical parameter that changes based on a deflection of the sensor diaphragm in response to a pressure difference. The pedestal is bonded to the electrically insulative layer and attached to the header within the header cavity.

A fluid system includes a one-way check valve including a check-valve inlet and a check-valve outlet; a Y-connector including a Y-connector inlet, a first Y-connector outlet, a second Y-connector outlet, and a pressure-sensor connector; an inlet hose fluidly connecting the check-valve outlet and the Y-connector inlet; and a pressure sensor fluidly connected to the Y-connector via the pressure-sensor connector. The Y-connector inlet, Y-connector outlets, and pressure-sensor connector are fluidly connected to each other inside the Y-connector.

An atmospheric box for use with a fuel vent pressure sensor is operatively connected to a fuel tank of a vehicle. The atmospheric box includes a base including a floor, a sidewall extending upward from the floor and having an outer perimeter, and a drain hole opening in the floor, and a cover including a top section, an outer wall extending downward from the top section and having an inner perimeter substantially similar to the outer perimeter of the sidewall, thereby creating an interference fit between the cover and the base. An inner labyrinth wall extends downward from the top section inward of the sidewall, and a tube joint in the cover defines an opening inward of the inner labyrinth wall. The atmospheric box provides access to the atmosphere for measuring pressure while blocking water and debris intrusion.

An industrial process field device includes a pressure sensor, and a housing containing the pressure sensor. The housing includes a base having a base interface and a first base process opening. A flange is attached to the base and includes a flange interface having a first flange process opening. A first gasket process opening of a gasket is aligned with the first base process opening and the first flange process opening. A first surface of the gasket engages the base interface, and a second surface of the gasket engages the flange interface. A dielectric insulation system includes at least one dielectric layer that insulates the housing from electrical currents conducted through the flange. Each dielectric layer includes a layer of ceramic material, an anodized layer, or a plastic overmold, which improve a maximum working pressure of the field device.

A system for mounting a differential pressure indication device for indicating a presence of a directional differential pressure between a first space and a second space separated from the first space by a barrier is provided. The system may include a base configured to be mounted against the barrier, where the base includes a receptacle configured to removably receive the pressure indication device. The system may include at least one mounting fastener configured to removably secure the differential pressure indication device within the receptacle. The system may include a pitch adjuster configured to secure the base to the barrier, where movement of the pitch adjuster is configured to adjust a spacing between a portion of the base and the barrier to adjust the orientation of the base with respect to pitch.

A fluid flushing system includes a sampling port comprising a sampling conduit configured to dispense a sample of a fluid in the fluid routing assembly; a valve configurable in an open valve configuration, wherein the fluid is permitted to flow through the fluid flushing system, and a closed valve configuration, wherein the fluid is prohibited from flowing through the fluid flushing system; and a backflow preventer disposed between the sampling port and the valve, the backflow preventer configured to allow the fluid to flow in a first direction through the fluid flushing system towards the valve and to prevent the fluid from flowing in an opposite second direction through the fluid flushing system towards the sampling port.

The present disclosure provides a pressure measuring instrument which comprises a gauge body, a connecting component and a pushing component, the connecting component comprises a first connecting member and a positioning sleeve which are connected with each other to form a corotating relationship, and the first connecting member comprises a first external thread section and a second external thread section connected to each other, and the first external thread section is used for a pressure-measuring hole threaded with a pressure vessel, the second external thread section protrudes from the pressure-measuring hole, the positioning sleeve is rotatably screwed to the second external thread section, and the positioning sleeve is configured to provide a force to the pressure vessel, and the pushing component is configured to pass through the connecting component and be pushed by a fluid in the pressure-measuring hole to push against a pressurize unit of the gauge body.