A water meter (1) comprising: a volume flow-measuring device (2) by means of which a volume flow of a liquid flowing through a water pipe (3) can be measured from outside the water pipe (3); and a clamping device (4) by means of which the water meter (1) can be clamped to the water pipe (3). In addition, a method for attaching a water meter (1) to a water pipe (3).

A meter bar includes a housing comprising an inflow end and an outflow end, a key assembly arranged within housing, the key assembly including a key, the key defining an interior and providing a fluid pathway from the inflow end to the outflow end; the key defining a pair of upper portals, one upper portal proximate the inflow end and one upper portal proximate the outflow end; the key defining a pair of lower portals, one lower portal proximate the inflow end and one lower portal proximate the outflow end; the key defining a pair of bypass portals; the key assembly arrangeable within the housing to selectably direct fluid flow from the inflow end to the outflow end either through a meter or bypassing the meter.

A measuring apparatus (10) for determining the flow speed of a fluid (12) flowing in a conduit (14) using at least one ultrasonic transducer (18a-b) that is attached to the conduit wall (22) from the outside and has an oscillating body (34) that couples to a part region (32) of the conduit wall (22) that acts as a membrane of the ultrasonic transducer (18a-b) that can vibrate, characterized in that a coupling piece (36) whose cross-section is smaller than the cross-section of the oscillating body (34) is arranged between the membrane (32) and the oscillating body (34).

A support arrangement for a fluid monitoring system is provided, configured for being secured within a vertical shaft and for facilitating positioning of a fluid monitor suspended therefrom. The support arrangement includes an attachment arrangement to be secured to a vertical access shaft of an open channel fluid transport system, a cross rail assembly including a cross rail and being configured to be mounted to the attachment arrangement for being supported thereby, and a lifting assembly mounted on the cross rail and configured for suspension therefrom of the fluid monitor along a vertically-extending suspension axis. The cross rail is configured to be rotatable about a vertical axis when at least partially received within the attachment arrangement. The lifting assembly is configured to be selectively secured to one of a plurality of lateral positions along the length of the cross rail.

A flowmeter system that includes a flowmeter body defining a central bore. A plurality of flanges couple to the flowmeter body. The flowmeter body and the plurality of flanges form a one-piece structure without welded joints. A rotor within the central bore of the flowmeter body. A first vane within the central bore of the flowmeter body. The first vane couples to and supports the rotor within the flowmeter body. The flowmeter body, the flanges, the rotor, and the first vane comprise additive structures.

A physical quantity measurement device includes a housing forming a through flow path, and a measurement flow path branching from the through flow path. A physical quantity sensor is provided in the measurement flow path. An inner surface of the housing includes an inlet ceiling surface and an inlet floor surface which face each other and define an inlet through path that is between and connects an inlet of the through flow path and an inlet of the measurement flow path, The inlet ceiling surface includes a ceiling inclined surface that extends from the inlet of the through flow path and is inclined with respect to the inlet floor surface. A distance between the ceiling inclined surface and the inlet floor surface gradually decreases in a direction from the inlet of the through flow path toward an outlet of the through flow path.

A hot melt adhesive system includes an adhesive supply for receiving solid or semi-solid hot melt adhesive, and a heater associated with the adhesive supply for melting the solid or semi-solid hot melt adhesive into liquid hot melt adhesive. An adhesive tracking system monitors an output of the liquid hot melt adhesive, and includes a flow meter having a flow inlet and a flow outlet. The flow meter measures an amount of the adhesive flowing out of the flow outlet. A product detector may be used to sense a presence of a product to which the adhesive is applied. A controller then determines the total amount of the liquid adhesive dispensed and the average amount of liquid adhesive dispensed per product.

A flow sensor includes an auxiliary channel having an opening into which a fluid to be measured is taken; a sensor element that measures the flow of the fluid to be measured; a housing that accommodates electronic parts; and a resin cover. The flow sensor is configured such that junctions of the housing and the cover are formed in locations where first target weld portions, which are formed so that the circuit chamber is surrounded, face each other and second target weld portions, which are disposed for additional reinforcement of the joints, face each other on a bonding face of the housing and a bonding face of the cover with a step being provided. The positioning of the housing and the cover is determined, and the first target weld portions are welded to each other and second target weld portions are welded to each other by way of laser radiation.

A fluid supply monitoring system includes a fluid sensor configured to identify a flow rate of a fluid through a supply line. The system comprises a valve configured to control the flow rate through the supply line and a pressure sensor configured to detect a fluid pressure. A controller is configured to receive the flow rate data and identify fluid consumption from the supply line based on the flow rate. The controller is further configured to compare the fluid consumption of a usage event to one of a time limit and a volume limit. In response to the fluid consumption exceeding the time limit or the volume limit, the controller controls the valve to a closed position and identifies a potential fluid leak. With the valve in the closed position, the controller processes a verification procedure that identifies whether the potential fluid leak is an actual fluid leak.

The present invention provides a thermal flow meter 300 which reduces a stress applied from a fixing portion 3721, which is used to hold and fix a circuit package 400 with respect to a housing 302, to the circuit package 400 and has high reliability. In the thermal flow meter of the invention, the circuit package 400 embedded with a flow rate measurement circuit is formed through a first resin molding process, the fixing portion 3721 is formed along with the housing 302 through a second resin molding process, and the circuit package 400 is enveloped by the fixing portion 3721, whereby the circuit package 400 is held by and fixed to the housing 302. In order to reduce the influence of a stress, generated based on a temperature change of the fixing portion 3721, on the circuit package 400, the fixing portion 3721 is constituted of a thick portion 4714 and a thin portion 4710. Since thickness of a resin of the thin portion 4710 is small, the stress to be generated is small, and a force applied to the circuit package 400 can be reduced.