FIELD: engines and pumps.
SUBSTANCE: proposed test bench consists of water tank 1, suction pipeline 2 with valve 3 to feed water to suction tube of tested pump 4, delivery pipeline 5 with valve 6 and restrictor 7 to control pump head at open valve 6 in delivery line, and auxiliary pipeline 8 and valve 9 to communicate delivery line with tank 1. Compressor 10 maintains required pressure in tank 1. Water is discharged from delivery line into suction pipeline 2 in permanent communication with tank 1 to feed water to pump inlet 4 solely at open auxiliary pipeline 8.
EFFECT: constant high fluid temperature without auxiliary hardware.
1 dwg
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