PENGARUH KETINGGIAN BAK PENANGKAP AIR DAN PANJANG PIPA MASUK TERHADAP HEAD PUMP PADA POMPA HIDRAM

Abstract

Dusun Ketos and Dusun Cabe is 2 (two) of 7 (seven) Dusun in Kulon Wonodadi Ngadirojo Pacitan, East
Java. The problems faced by the community, especially for Ketos Dusun and Dusun Cabe whose territory the form
of hills and rocks are prone / difficulty of clean water, clean water to meet the needs of the people using water from
springs and rainwater. In the dry season, water from springs debitnya reduced, so that less water needs in the
village. Only water can not be drained using gravity because it is under the township residents located on the hill - a
hill at an altitude of 750 m above sea level. The approach offered to solve the problem is by making a catchment
basin, hydraulic ram and tank water divider.
The effectiveness of the performance of hydraulic ram is influenced by several parameters, among others: the length
of the inlet pipe, inlet pipe diameter, high penagkap tub of water, and heavy exhaust valve. This study aims to
observe and analyze the effect of altitude penagkap tub of water and a long inlet pipe to the pump head on the
hydraulic ram. The research method through designing hydraulic ram and analyzing the catchment basin height of
2.9 m, 3.2 m and 3.5 m and a length of inlet pipe 18 m, 24 m and 30 m. Tests carried out in the river, precisely in
Dusun and Dusun Ketos Cabe, Pacitan.
Based on the research and analysis it can be concluded that by using the height of basin catchment 3.5 m and 30 m
length of pipe entry could generate more volume and maximum pressure compared with other tests and can produce
water flow of up to 6.7 L / min at pump head 173 m with a vertical condition.
So the higher the basin catchment (H), the greater the discharge of the hydraulic ram and the pressure generated in
the intake also getting bigger, while for long inlet pipe (L), the length of the pipe entering the greater the volume
and pressure of entering into Conductor flowing through the valve body hidram, because the water is very large
impulse will open the waste valve and the valve closed waste arrived - arrived to make the flow greater impetus.
This is because water is the greatest moment of the collision on H 3.5 m and 30 m L it affect the discharge results
and the hydraulic ram pump head.
Keywords: hydraulic ram, high penagkap tub of water, the length of the pipe entrance