An arcuate sweep elbow pipe connector section is disclosed as part of the piping system used to deliver water from a source to a fire sprinkler head. The arcuate sweep elbow pipe connector section is integrally formed at one end with a first connecting section and integrally formed at a section end with a second connection section. The connecting sections are positioned ninety degrees relative to each other and the arcuate sweep elbow pipe connector section optimizes water flow through both connecting sections.

An apparatus capable of controlling a liquid may provide a source vessel to contain the liquid and an inlet tube for flowing the liquid into the source vessel. The inlet tube may extend into the source vessel and may be arranged to direct the flowing liquid onto a sidewall of the source vessel.

An apparatus capable of controlling a liquid may provide a source vessel to contain the liquid and an inlet tube for flowing the liquid into the source vessel. The inlet tube may extend into the source vessel and may be arranged to direct the flowing liquid onto a sidewall of the source vessel.

A gas flow conditioner in the flow bend in an ultrasonic flow meter has at least one longitudinal dividing plate provided in an inner space of the flow bend. The flow bend can be provided with an inlet curved section, a middle straight section, and an outlet curved section, wherein axes of the inlet curved section and the outlet curved section are in a parallel direction and connected to a pipe opening of size DN.

A gas flow conditioner in the flow bend in an ultrasonic flow meter has at least one longitudinal dividing plate provided in an inner space of the flow bend. The flow bend can be provided with an inlet curved section, a middle straight section, and an outlet curved section, wherein axes of the inlet curved section and the outlet curved section are in a parallel direction and connected to a pipe opening of size DN.

An improved flow conduit with gradually expanding caliber is described, where the conduit radius r grows with conduit length 1 so that the conductance remains constant or r.sup.4/l is constant, or alternatively, where the flow is near constant conductance flow, where or r.sup.n/l is constant, where n>4. The radius can expand over a portion of the conduit.

An improved flow conduit with gradually expanding caliber is described, where the conduit radius r grows with conduit length 1 so that the conductance remains constant or r.sup.4/l is constant, or alternatively, where the flow is near constant conductance flow, where or r.sup.n/l is constant, where n>4. The radius can expand over a portion of the conduit.

The present disclosure relates to an expanding and radiative flow mechanism. The mechanism has a bottom surface. The bottom surface is provided with a fluid supply port. The bottom surface of the mechanism and a surface of a to-be-adsorbed object form a gap during use. A fluid flows out from the fluid supply port, enters the gap and flows out along the gap. The gap is an expanding gap and meets the following: a radial length exists with the fluid supply port as an initial point of the flow, and a height of the gap continuously increases in an outward radial direction within this length. With improvements to a parallel radiative flow mechanism, the mechanism of the present disclosure can effectively increase an absorption force of a radiative flow, which is conducive to subsequent applications thereof.

The present disclosure relates to an expanding and radiative flow mechanism. The mechanism has a bottom surface. The bottom surface is provided with a fluid supply port. The bottom surface of the mechanism and a surface of a to-be-adsorbed object form a gap during use. A fluid flows out from the fluid supply port, enters the gap and flows out along the gap. The gap is an expanding gap and meets the following: a radial length exists with the fluid supply port as an initial point of the flow, and a height of the gap continuously increases in an outward radial direction within this length. With improvements to a parallel radiative flow mechanism, the mechanism of the present disclosure can effectively increase an absorption force of a radiative flow, which is conducive to subsequent applications thereof.

A rectification member 32 is a rectification member that rectifies air that cools molten resin filaments discharged from a nozzle, including: a multi-cylindrical part in which a plurality of cylindrical cells 34a are formed; and a wire net 36 arranged to cover an opening part of the multi-cylindrical part. The wire net 36 has a mesh opening that is smaller than the size of the cylindrical cells 34a.