Effects of size of drain valves on flow rate of the hydraulic ram pump using for agriculture

Abstract

The objective of this study was to test the effects of drain valves sizes on the flow rate of the Hydraulic ram pump using for agriculture. This study was conducted using a pipe of 2 m height and size 50 mm diameter of the inlet pipe connected into the Hydraulic ram pump with 12 m of inlet hose and 19 mm of outlet hose. Three sizes of drain valves of 25, 38 and 50 mm connected into the air chamber with 102 mm diameter, and 450 mm height. The results showed that 38 mm of diameter of the drain valve and mass pressure on the valve of 900 g showed the highest flow rate of 25 liters per hour.