Abstract: An improved cap and assembly is provided for a poured concrete deck. The improved assembly has a diaphragm seal over-molded to a top plate having a depending sidewall that is snap-fit to a base containing a fire ring. A tubular sleeve is connected to the over-molded top plate by snap fit connections to the sidewall and by threaded fasteners passing through sockets in the sleeve, sidewall and base. The over-molded diaphragm has a funnel shape. A first sleeve cap has depending positioning tabs that may be broken off to adjust the cap height relative to the sleeve, with an inwardly extending latching surface engaging the sleeve when the tabs are removed. A second cap has inwardly extending tabs that fit into channels on the sleeve fit between ridges on the sleeve when rotated to adjustably position the second cap on the sleeve.

Abstract: A fluid manifold is capable of channeling and monitoring fluid flow within a fluid distribution system. The manifold includes one or more input lumens. Each input lumen associated with a respective inlet port. The manifold also includes a plurality of output lumens such that each output lumen is associated with a respective outlet port and at least one input lumen is coupled to two or more output lumens. The manifold also includes one or more flow sensors capable of measuring fluid flow parameters of fluid flowing through at least one of the one or more input lumens and the plurality of output lumens. In some implementations, a flow sensor can be mounted to each output lumen of the manifold.

Abstract: A terminal portion for sealing an end of a conduit includes a body including a first end having a first diameter and a second end having a second diameter, the first diameter having a smaller size than the second diameter. The terminal portion further includes an internal ring disposed over and around the first end of the body, and a sleeve disposed over the body and the internal ring. The sleeve is structured to contain an outer portion of the end of the conduit and is dimensioned to accommodate the first end of the body and the conduit. At least one inner sleeve contained in the sleeve houses the body.

Abstract: A connector for a fluid line includes a sleeve having a hollow portion at least partway therethrough. The sleeve includes an engaging portion. A collet having an engaging part is secured to the engaging portion. A grab part has one or more teeth configured to retain the fluid line, and the teeth are located in the hollow portion. A locking part is provided having a locking portion, and the locking part is configured to move from a first position to a second position where the locking portion locks with a locking piece to assist with forming a fluid seal with the fluid line.

Abstract: A valve device including a first wall configured to be received by a valve housing; a second wall located in an inboard direction of the first wall; and a connecting member connecting the first wall to the second wall, wherein at least the second wall has an aperture therethrough in the inboard direction.

Abstract: A joint restraint is provided for a curved pipe joint having a curved pipe section joining two adjacent pipe sections. The pipes are joined using tubular sleeves held by hose clamps to form fluid tight seals, with two clamps on each end of the curved pipe sections and two clamps on each proximal end of the adjacent pipe sections. An inner strap extends between and fastens to one of the clamps on each adjacent pipe section forming a chord of an arc. An outer strap extends along an outer periphery of the joined pipes and fastens to the other clamps on each adjacent pipe section. The straps are in a plane through a center of the flow path of the joined pipes.

Abstract: A valve assembly includes a body and a push-to-connect fitting. The body includes an end segment that defines a fluid outlet and a connector portion. The connector portion includes an inner peripheral wall and an outer peripheral wall. The inner peripheral wall has a first exterior surface, and includes a first portion and a second portion. The first exterior surface has a first outer diameter in the first portion and a second outer diameter in the second portion that is greater than the first outer diameter such that a stepped profile is formed along the first exterior surface. The inner peripheral wall defines a fluid inlet. The outer peripheral wall extends from the inner peripheral wall and at least partly around the fluid inlet. The outer peripheral wall has a second exterior surface with a third outer diameter that is greater than the second outer diameter.

Abstract: An assembly includes a flexible tubular member having a medial portion defined between a first end and a second end of the tubular member. The assembly further includes an end cap molded over the first end of the tubular member, such that the end cap seals the first end of the tubular member. The assembly additionally includes a fitting having a first end portion configured to secure to the second end of the tubular member and a bracket attached to the medial portion of the tubular member. The bracket is configured to mount to a structure adapted to secure at least one end of the tubular member in place.

Abstract: According to at least one aspect, a fluid flow monitoring system includes an ultrasonic sensor for generating measurement signals associated with respective ultrasonic signals propagating through the fluid in the lumen, a shut-off valve for blocking fluid flow in the lumen, and a controller. The controller can be communicatively coupled to the ultrasonic sensor and to the shut-off valve. The controller can be configured to compute a plurality of fluid flow parameter estimates based on a plurality of measurement signals generated by the ultrasonic sensor over a time window while the shut-off valve is open. The controller can obtain an offset value associated with fluid flow parameter measurements during a zero flow state of the shut-off valve. The controller can then check for presence of a fluid leak event based on the fluid flow parameter estimates over the time window and the offset value.

Abstract: According to at least one aspect, a fluid flow monitoring system includes an ultrasonic sensor for generating measurement signals associated with respective ultrasonic signals propagating through the fluid in the lumen, a shut-off valve for blocking fluid flow in the lumen, and a controller. The controller can be communicatively coupled to the ultrasonic sensor and to the shut-off valve. The controller can be configured to compute a plurality of fluid flow parameter estimates based on a plurality of measurement signals generated by the ultrasonic sensor over a time window while the shut-off valve is open. The controller can obtain an offset value associated with fluid flow parameter measurements during a zero flow state of the shut-off valve. The controller can then check for presence of a fluid leak event based on the fluid flow parameter estimates over the time window and the offset value.

Abstract: A flexible heater connector can include a hose, a nut having a female tapered thread, and a fitting structure. The female tapered thread of the nut can engage a male tapered thread associated with the heater. The fitting structure can include a first portion to mechanically engage an inner wall of the hose, and a second portion mechanically coupled to the nut. The nut can be a swivel nut.

Abstract: A fluid flow meter system for monitoring fluid flow through a lumen includes a first ultrasonic transducer configured to transmit one or more versions of a transmit (TX) signal through a fluid flowing within the lumen, and a second ultrasonic transducer configured to receive one or more respective receive (RX) signals. The fluid flow meter system includes an analog-to-digital converter (ADC) configured to sample, at a first frequency, the one or more RX ultrasonic signals and a processor configured to generate a fine resolution signal based on the one or more RX ultrasonic signals. The fine resolution signal is associated with a second sampling rate higher than the first sampling rate. The processor is also configured to compute a cross-correlation signal indicative of cross-correlation between the fine resolution signal and a waveform and determine an estimated fluid flow parameter based on the computed cross-correlation signal.

Abstract: According to at least one aspect, a fluid flow monitoring system includes an ultrasonic sensor for generating measurement signals associated with respective ultrasonic signals propagating through the fluid in the lumen, a shut-off valve for blocking fluid flow in the lumen, and a controller. The controller can be communicatively coupled to the ultrasonic sensor and to the shut-off valve. The controller can be configured to compute a plurality of fluid flow parameter estimates based on a plurality of measurement signals generated by the ultrasonic sensor over a time window while the shut-off valve is open. The controller can obtain an offset value associated with fluid flow parameter measurements during a zero flow state of the shut-off valve. The controller can then check for presence of a fluid leak event based on the fluid flow parameter estimates over the time window and the offset value.