The 10SP135/4A is a 10" stainless steel multistage submersible borehole pump from the 10SP135 range (nominal flow around 135 m³/h), delivering heads of up to 110m and flows up to 180 m³/h. It runs on a three-phase supply (380V or 525V). Choose a complete set, or just the pump end if you are replacing a worn one.

At a glance: delivers about 90 m³/h (90 000 litres per hour) at 89m head. Best for large irrigation schemes, municipal water supply and mine dewatering from high-yield boreholes.

Available options:

380V set: pump + water-filled motor (no starter): 10SP135/4A pump end + 45kW 380V three-phase water-filled 8" motor (starter panel not included)
525V set: pump + water-filled motor (no starter): 10SP135/4A pump end + 45kW 525V three-phase water-filled 8" motor (starter panel/VSD not included)
Pump end only (no motor): 10SP135/4A pump end (wet end) only – to replace a worn pump end on an existing 37kW 8" motor

Motor power: 37kW
Pump diameter: 10" – needs a borehole with an internal diameter of at least 250mm
Motor size: 8" motor
Stainless steel pump construction

Performance Table:

Flow (m³/h)	Flow (l/min)	Head (m)
0	0	110
18	300	109
36	600	104
54	900	100
72	1200	95
90	1500	89
108	1800	82
126	2100	75
144	2400	68
162	2700	58
180	3000	47

Choosing the right pump: add the depth to your borehole’s pumping water level, the height up to your tank or reservoir and about 10% for pipe friction – that’s your total head. Pick a pump whose head at the flow you need is higher than that total. Your borehole must also be able to deliver that flow – ask your driller for the yield-test result, otherwise the pump can run the borehole dry. Not sure which pump fits? Send us your borehole depth, water level, yield and how far/high you need to pump and we’ll recommend the right model before you order.

Oil-filled or water-filled motor? Both drive the pump in the same way. Oil-filled motors are sealed units (rated 25 bar). Water-filled motors (rated 35 bar) can usually be rewound if they burn out, which normally makes repairs cheaper on bigger motors.

Starter / controller: motors above 30kW need a soft starter, star-delta panel or VSD sized by your electrician – these are not included. Ask us for a quote on the complete installation. See all Borehole Controllers.

Not included: submersible cable, rope, delivery pipe and base plate. Large borehole pumps are often supplied to order – contact us to confirm stock and delivery time.

Configuration	380V set: pump + water-filled motor (no starter), 525V set: pump + water-filled motor (no starter), Pump end only (no motor)

10SP135/4A 10″ Borehole Pump 37kW – 110m Max Head