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3.5'' borehole pump

3.5SDM4 series

3.5SD 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. 

3.5SD series are suitable for wells over φ90mm

3.5SD 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.

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Maximum fluid temperature up to +35°C

Maximum sand content:0.25%

Minimum well diameter:3.5"



Rewindable motor

Single-phase:220-240V/50Hz

Three-phase:380-415V/50Hz

Equip with start control box or digital auto-control box

Pumps are designed by casing stressed

Curve tolerance according to ISO 9906



ComponentsMaterial


Pump external casingAIS 304 SS
Delivery casingCast-Cu ASTM C85500
Suction lanternCast-Cu ASTM C85500
DifuserPlastic.PC
lmpellerPlastic.POM
ShaftAlSI304 SS
Shaft ouplingAISI304 SS
Wear ringAlSI304 SS


Motor external casingAISI 304 SS
Top chock①Cast-Cu ASTM C85500

②Cast-iron ASTM NO.30
Bottom supportAISI 304 SS
Mechanical sealSpecial seal for deep wellGraphite-Ceramic)
ShaftAISI 304 SS-ASTM5140
Seal lubricant oilOil for food machinery and pharmaceutic use.



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Special mechanical seal

Other voltagesor frequency 60Hz

Single phase motor with built-in capacitor



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