A sensing device for a hydrant can include a sensor located entirely within an interior cavity of a hydrant body of the hydrant and configured to measure a property of a fluid of a fluid distribution system and an antenna in communication with the sensor and positioned within the interior cavity.

An annulus pressure release system includes a gas metering valve assembly having a fluid pathway. The gas metering valve assembly includes a pressure sensor configured to be fluidly coupled to an annulus and to output a sensor signal indicative of a fluid pressure within the annulus. The gas metering valve assembly also includes an electronically actuated adjustable control valve disposed along the fluid pathway and a electronically actuated two-position valve disposed along the fluid pathway. Furthermore, the gas metering valve assembly includes a flow controller. The flow controller, in response to determining the fluid pressure exceeds a threshold pressure, is configured to output a first control signal to the electronically actuated two-position valve indicative of instructions to open the electronically actuated two-position valve, and to output a second control signal to the electronically actuated adjustable control valve indicative of instructions to adjust a flow of fluid through the fluid pathway.

The invention provides a device for monitoring a fluid flux, said device comprising a body suitable for being introduced in a medium carrying a fluid flow, which body provides one or more passages for the fluid, each having an inlet, an outlet, and a reduced channel portion in fluid communication with said inlet and outlet via respective inlet and outlet funnels, said device further comprising means for determining a flow rate of fluid traveling within one or more of said reduced channel portions. In particular, at least one of said reduced channel portions is misaligned with respect said inlets and outlets. In a further aspect, the invention provides a method for monitoring a fluid flux.

The invention provides a device for monitoring a fluid flux, said device comprising a body suitable for being introduced in a medium carrying a fluid flow, which body provides one or more passages for the fluid, each having an inlet, an outlet, and a reduced channel portion in fluid communication with said inlet and outlet via respective inlet and outlet funnels, said device further comprising means for determining a flow rate of fluid traveling within one or more of said reduced channel portions. In particular, at least one of said reduced channel portions is misaligned with respect said inlets and outlets. In a further aspect, the invention provides a method for monitoring a fluid flux.

A detection device for detecting characteristics of a mixed fluid containing different types of substances with different thermal properties within a prescribed range, includes: one or a plurality of heaters for heating the mixed fluid; a plurality of temperature detectors for detecting the temperature of the mixed fluid heated; a flow rate calculation unit for calculating the flow rate of the mixed fluid using the output from at least a portion of the plurality of temperature detectors; a correspondence relation storage unit that stores the correspondence relation between the output from the temperature detectors for a prescribed flow rate and the mixture ratio of the substances in the mixed fluid; and a mixture ratio calculation unit for calculating the mixture ratio of the substances in the mixed fluid on the basis of the output from the temperature detectors and the correspondence relation.

A system includes a flow sensor contained within a flow sensor housing, a base, and a seal. The base houses a controller that generates at least one operation modification signal, and the flow sensor is separable from and mountable onto the base. A bottom surface of the flow sensor housing includes the seal. The seal forms a liquid-tight engagement between the flow sensor housing and the base when the flow sensor is mounted onto the base.

A system includes a flow sensor contained within a flow sensor housing, a base, and a seal. The base houses a controller that generates at least one operation modification signal, and the flow sensor is separable from and mountable onto the base. A bottom surface of the flow sensor housing includes the seal. The seal forms a liquid-tight engagement between the flow sensor housing and the base when the flow sensor is mounted onto the base.

A securement arrangement for introducing a field instrument into a container includes a connection adapter and a sealing element. The field instrument includes a housing and a sensor. The sensor of the field instrument protrudes inwardly into the container, and the field instrument serves for determining and/or monitoring a process variable of a medium in the container. The connection adapter includes a cylindrical basic body, on which a first securement element is arranged for securing the connection adapter to the field instrument. The connection adapter surrounds the field instrument when the connection adapter is secured to the field instrument. A second securement element is also arranged on the connection adapter for securing the connection adapter to a container adapter. The container adapter surrounds the connection adapter when the container adapter is secured to the connection adapter. A first support of the connection adapter accommodates the sealing element.

A securement arrangement for introducing a field instrument into a container includes a connection adapter and a sealing element. The field instrument includes a housing and a sensor. The sensor of the field instrument protrudes inwardly into the container, and the field instrument serves for determining and/or monitoring a process variable of a medium in the container. The connection adapter includes a cylindrical basic body, on which a first securement element is arranged for securing the connection adapter to the field instrument. The connection adapter surrounds the field instrument when the connection adapter is secured to the field instrument. A second securement element is also arranged on the connection adapter for securing the connection adapter to a container adapter. The container adapter surrounds the connection adapter when the container adapter is secured to the connection adapter. A first support of the connection adapter accommodates the sealing element.

An adapter includes several connecting nozzles. Free nozzle ends of the connecting nozzles are adapted to be connected to line ends of fluid lines. The adapter includes, for guiding flowing fluid in and then out, two mutually separated, tubular flow channels. Moreover, the adapter includes a projection, which extends from the nozzle end with a length to a free projection end remote therefrom. A fluid line system formed by means of the adapter comprises, furthermore, a fluid line with, enveloped by a wall, a lumen. The fluid line can be connected with its line end to the connecting nozzle of the adapter in such a manner that the projection protrudes inwardly into the lumen of the fluid line to form two tubular chambers of the fluid line mutually separated by the projection and adapted for guiding through flowing fluid.