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4'' borehole pump

4SP series

4SP Submersible Deep Well Pump

DONGYIN Pump provide a wide range of deep well submersible pumps from 2'' to 10'' which are designed for tranfering water from wells, ponds, lakes and cisterns. 

4SP full stainless steel series are suitable for wells over φ100mm

4SPM deep well submersible pump is used to pump water from drilled deep wells, borehole wells, ponds, and lakes. Ideal for sprinkler lawn irrigation, elevated and cistern tanks filling, water fountains, industrial and farming water supply, and agricultural irrigation.


Maximum liquid temperature +35 °C 

Maximum sand content:0.25%

Maximum immersion depth of 60 m

Minimum well diameter:100mm

Installation: vertical

Rewindable oil-filled motor 50/60Hz

Pump sizes for connecting to motor according to NEMA standards

High quality shaft bearings providing low friction and high wear resistance

Strong stainless-steel drive shaft ensures positive impeller drive and longer life

Insulation: class F

Protection: IP 68


Delivery casingAIS 304 SS
Suction lanternAlSI304 SS
DifuserAlSI 304 SS
lmpellerAlSI304 SS
ShaftAlSI304 SS
Shaft couplingAlSI304 SS
Wear ringRubber

Motor external casingAlSI304 SS
Top chock①Cast-Cu ASTM C85500 ②AISI 420 SS
③Cast-iron ASTM NO.30
Bottom supportAISI304 Ss
Mechanical sealSpecial seal for deep wellGraphite-Ceramic)
ShaftAISI 304 SS-ASTM5140
Seal lubricant olOil for food machinery and pharmaceutic use.


Top chuck is available with brass or SS304

Delivery casing, Inlet parts are available SS304

Other voltages or frequency 60Hz

Single phase motor with built-in capacitor




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