return bend


Also found in: Dictionary.

return bend

[ri′tərn ‚bend]
(design engineering)
A pipe fitting, equal to two ells, used to connect parallel pipes so that fluid flowing into one will return in the opposite direction through the other.

return bend

return bend
A pipe fitting, 1 or a preformed piece of tubing which provides a 180° change in direction.
References in periodicals archive ?
Return bend pressure drop in refrigeration systems.
Two-phase flow pattern in small diameter tubes with the presence of horizontal return bend.
Two-phase slug flow across small diameter tubes with the presence of vertical return bend.
The influence of return bends on velocity ratio in gas-liquid pipe flow.
During operation, the basket is pulled forward from the machine on its central spindle, approximately 350 copper return bends or header legs are loaded and the basket is pushed back until it engages with a drive mechanism at the back.
5) Judge and correct the connection of the return bends according to the confine conditions set by the designer.
In the RC design generated by the KBEM, all the return bends on the far side of the heat exchanger (as shown with broken lines in Figure 5a) lie between two adjacent tubes, which makes the design easy to manufacture by inserting the U type tubes from the far side of the heat exchanger first and then connecting the U type tubes using connection tubes on the near side of the heat exchanger.
In the recommended RC designs, all the return bends on the far side of heat exchanger are between two adjacent tubes, which makes it feasible to manufacture the heat exchanger by inserting the U type tubes from the far side of the heat exchanger first and then connect the U type tubes using connection tubes on the near side of the heat exchanger.
In the recommended RC designs, all the return bends on the far side of the heat exchanger are between two adjacent tubes, while some of the return bends on the near side of the heat exchanger still span several tubes.
Return bends 700h1200h2490 90 273h24 R375 08OST 108.
Tenders are invited for replacement of furnace return bends, maintenance of heat exchangers and other hot and cold jobs during dcu decoking shutdown at guwahati refinery.
The presence of U-shaped static cast return bends allowed improving the original safety factor above the pre-design questionnaire value, which required the steam generator to be designed for 125 percent of the heat load.