PERANCANGAN DAN ANALISIS PERFORMA POMPA HIDRAM UNTUK MEMENUHI KEBUTUHAN AIR BERSIH DI DUSUN BELANG TLOGOLELE SELO BOYOLALI

Abstract

This research aimed to: (1) determine the daily water needs of Belang population, (2) designing
hydram pump installation based on water needs and geographical conditions of Belang village, (3) study the
performance and efficiency of the hydram pump, (4) study the role of the hydram pump to fulfill the daily
water needs of Belang population. This study was based on Research and Development (R & D). It
developed hydram pump installation to fit the topography of Belang village so it can work optimally. The
pump was tested by varying waste valve length at 20 mm, 25 mm, 30 mm and 35 mm; and waste valve ballast
at 0 grams, 250 grams, 500 grams and 750 grams. Data collection was performed three times for each
variation. Hidram pump performance was determined by the efficiency and the volumetric discharge of water
produced during the pump operation. Hydram pump was designed based on standard of the daily water
needs which reachs 13650 liters/ day for 195 Belang’s people. In this study, hydram pump has some
parameters. They are 4,5 meters of supply height, 80 meters of delivery height, 4 inches of pump body
diameter and 1 inch of delivery pipe. Based on the tests that have been conducted, the highest efficiency of
the hydram pump shown at 30 mm of waste valve length and 250 grams of waste valve ballast (η = 0.486652,
q = 6.746969 L / min). The maximum volumetric discharge was presented at 35 mm of waste valve length
and 750 grams of waste valve ballast (q =7.522211 L / min, η = 0.380989). Hydram pump performance
could fulfill the water needeed in Belang Village until medium term maintenance level. They could use the
water for drinking, cooking, bathing, washing, until cleaning home by 9750 liters/ day.