Deep Well Pump
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The 3.5SDM7 Series Stainless Steel Deep Well Motor Pump is a high-performance solution designed for deep well water extraction, catering to irrigation and agricultural needs. With its robust construction and efficient operation, this pump is engineered to deliver reliable service in various water supply scenarios.
Key Features :
1、 Maximum fluid temperature up to +35℃
Maximum sand content : 0.25%
Minimum well diameter : 3.5"
2、Single phase motor is furnished with a start control box or a digital automatic control box.
3、Pumps are designed by casing stressed
4、Curve tolerance according to ISO 9903
5、1 year warranty
Special mechanical seal
Single phase motor with built-in capacitor
(according to our general sales conditions)

|
Components |
Material |
|
Pump external casing |
AISI 304 SS |
|
Delivery casing |
Cast-Cu ASTM C85500 |
|
Suction lantern |
Cast-Cu ASTM C85500 |
|
Diffuser |
Plastic.PC |
|
Impeller |
Plastic.POM |
|
Shaft |
AISI 304 SS |
|
Shaft coupling |
AISI 304 SS |
|
Wear ring |
AISI 304 SS |
|
Motor external casing |
AISI 304 SS |
|
Oil Chamber |
®Cast-Cu ASTM C85500 |
|
②Cast-iron ASTM NO.30 |
|
|
Bottom support |
AISI 304 SS |
|
Mechanical seal |
Special seal for deep well(Graphite-Ceramic/TC) |
|
Shaft |
AISI 304 SS-ASTM 5140 |
|
Seal lubricant oil |
Oil for food machinery and pharmaceutic use. |

|
Model |
Power |
Deliver n≈2850r/min |
|||||||||||
|
1~220-240V |
3~380-415V |
KW |
HP |
Q(m³/h) |
0 |
1.2 |
2.4 |
3.6 |
4.8 |
6.0 |
7.2 |
8.4 |
9.6 |
|
Q(l/min) |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
140 |
160 |
||||
|
3.5SDM7/5 |
3.5SD7/5 |
0.37 |
0.5 |
H(m) |
26 |
25 |
24 |
22 |
20 |
18 |
15 |
11 |
7 |
|
3.5SDM7/7 |
3.5SD7/7 |
0.55 |
0.75 |
37 |
35 |
34 |
31 |
28 |
25 |
21 |
16 |
10 |
|
|
3.5SDM7/9 |
3.5SD7/9 |
0.75 |
1 |
47 |
46 |
43 |
40 |
37 |
32 |
27 |
20 |
12 |
|
|
3.5SDM7/12 |
3.5SD7/12 |
1.1 |
1.5 |
63 |
61 |
58 |
54 |
49 |
43 |
36 |
27 |
16 |
|
|
3.5SDM7/15 |
3.5SD7/15 |
1.3 |
1.75 |
79 |
76 |
72 |
67 |
61 |
53 |
44 |
34 |
20 |
|
|
3.5SDM7/18 |
3.5SD7/18 |
1.5 |
2 |
95 |
91 |
87 |
81 |
73 |
64 |
53 |
41 |
25 |
|
|
- |
3.5SD7/21 |
2.2 |
3 |
111 |
106 |
102 |
94 |
85 |
75 |
62 |
48 |
29 |
|
|
- |
3.5SD7/25 |
3 |
4 |
132 |
127 |
121 |
113 |
102 |
89 |
74 |
57 |
34 |
|
EDWIN PUMP is a professional China borewell pumps manufacturers and deep well pumps factory, which supply a wide range of water pumps and water treatment peripheral products to customers around the world.
Our factory mainly produce three types of pumps: deep well pumps, sewage submersible pumps and household borewell pumps. At the same time, when customers have demand, we also provide customers with other related water treatment products by a professional working team from the company.
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