INSTALLATION REQUIREMENTS / RECOMMENDATIONS

These pumps can be installed underground, semi-underground or above-ground.

1 High water level should not be higher than the lowest part of the bearings.

2 Low water level should be considered so that the low water level will not exceed the pump maximum suction lift for the duty required.

3 The pump must be located as close to the water source as possible to ensure efficient performance.

4 The pump inlet and outlet manifold should be designed in such a way it is as short and straight as possible with minimal reduction in size.

5 When designing or assessing existing pump suction size, the water velocity should be calculated and checked to minimise the risk of cavitation, maximum allowable velocity of the pumped fluid entering the pump is 1.8m a second, however the recommended velocity is 1.2-1.3 Meters a second.

6 Mixed flow pumps are not self-priming, when a suction is being designed either a foot valve, full-flow swing type check valve or priming system (eg. vacuum pump or firefighter pump) should be utilised.

7 Pump suction should always have some type of strainer installed, in any case to ensure foreign objects larger than 50mm in size cannot enter the pump.

8 Pumps can be mounted in any orientation, however if deviating from standard orientation make sure to consider mechanical seal bath filling point will need to be moved into correct orientation for both operation and ease of maintenance, and bearings in pump will likely have to be changed to sealed unserviceable bearings or new grease filling point on bearing housing will have to be drilled and plugged, old filling point will have to be permanently closed off to prevent leakage of grease.

9 Any reducers, bends or check valves should be installed at minimum 1m away from the suction inlet of the pump and the pipe leading into the pump should be the same size or larger leading straight into the pump to reduce turbulence of water entering the pump ensuring even velocity of fluid into the pump.

10 Pump flanges are not load bearing devices, any pipework should be adequately supported as to not be putting stress on the pump or flanges.

11 Pump should be fully mounted utilising all mounting points to frame using the correct size bolts which will be the largest size that will fit, bolts should be correctly fastened tight, and pump should be solid mounted to frame, not rubber mounted.

12 Eccentric reducers entering pump should be installed the correct orientation with the reduction on top of the pipework. See Australian Standards for more details.

13 It is recommended that the suction have a vacuum gauge installed on the suction to read suction head to help diagnose potential issues or monitor performance of pump.

14 It is recommended that the pump discharge manifold include a pressure gauge to suit the application, a priming point with ball valve and an extra 25mm thread for installation of pressure switch / flow switch either immediately or in future for added protection.

15 It is recommended that pump is direct coupled to the engine / motor not belt driven for best efficiency and performance.

16 Is it recommended that the coupling utilised be a PTO shaft or jaw coupling and to be aligned with use of a laser alignment tool by a qualified person to ensure maximum efficiency / life of the coupling and pump.