Service Contract No 2007 / 147-446 - Swaziland

Figure 7. Eccentric reducer PS 1 and PS 3 suction manifoldA 125-150 concentric reducer was installed in PS1 pump and 130mm in length. PS 2 and PS3 pumps are attached to 100-200 concentric reducers 150mm in length. The unacceptabledimensions of the concentric reducer had negligible effects on the performance of the pumpand the entire system.Figure 8. Concentric reducer in delivery manifold4.1.1.3 Suction Pipe InletsSpacing and placing of suction pipe inletsIn a well constructed sump the inlet of the suction pipe must be in accordance to therequirements of at least 0,5d (d = inner diameter of the suction pipe) from the bottom of thepump sump (figure 9) and at least 1,5d away from the side of the pump sump.Maphobeni Farmers Association Report - 2009 Page - 18 -