3.5SDM4 Series Submersible Deep Well Water Pump
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Introducing the 3.5SDM4 Series Submersible Deep Well Water Pump, a robust and efficient solution for your water extraction needs. This multi-stage impeller vertical centrifugal pump is designed for reliability and performance in deep well applications.
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 |
|||||||||||||
|
1~220-240V |
3~380-415V |
KW |
HP |
Q(m³/h) |
0 |
0.6 |
1.2 |
1.8 |
2.4 |
3.0 |
3.6 |
4.2 |
4.8 |
5.4 |
6.0 |
|
Q(l/min) |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
||||
|
3.5SDM4/7 |
3.5SD4/7 |
0.37 |
0.5 |
H(m) |
40 |
39 |
38 |
37 |
35 |
34 |
31 |
27 |
22 |
16 |
9 |
|
3.5SDM4/9 |
3.5SD4/9 |
0.55 |
0.75 |
51 |
50 |
49 |
48 |
45 |
44 |
40 |
34 |
28 |
20 |
11 |
|
|
3.5SDM4/11 |
3.5SD4/11 |
0.75 |
1 |
62 |
61 |
60 |
58 |
56 |
53 |
49 |
42 |
34 |
24 |
14 |
|
|
3.5SDM4/13 |
3.5SD4/13 |
0.92 |
1.25 |
73 |
72 |
71 |
69 |
66 |
63 |
58 |
50 |
40 |
29 |
17 |
|
|
3.5SDM4/16 |
3.5SD4/16 |
1.1 |
1.5 |
90 |
89 |
87 |
85 |
81 |
78 |
71 |
61 |
50 |
36 |
20 |
|
|
3.5SDM4/18 |
3.5SD4/18 |
1.3 |
1.75 |
102 |
100 |
98 |
95 |
91 |
87 |
80 |
69 |
56 |
40 |
23 |
|
|
3.5SDM4/21 |
3.5SD4/21 |
1.5 |
2 |
119 |
117 |
114 |
111 |
106 |
102 |
93 |
80 |
65 |
47 |
27 |
|
|
3.5SDM4/24 |
3.5SD4/24 |
1.8 |
2.5 |
136 |
134 |
130 |
127 |
121 |
116 |
106 |
92 |
74 |
53 |
31 |
|
|
- |
3.5SD4/28 |
2.2 |
3 |
158 |
156 |
152 |
148 |
141 |
136 |
124 |
107 |
87 |
62 |
36 |
|
|
- |
3.5SD4/34 |
3 |
4 |
192 |
190 |
184 |
180 |
172 |
165 |
150 |
130 |
105 |
76 |
43 |
|
|
Model |
Power |
Deliver n≈3450 r/min |
||||||||||||
|
1~220/240V |
3~380/415V |
KW |
HP |
Q(m³/h) |
0 |
0.6 |
1.2 |
1.8 |
2.4 |
3.0 |
3.6 |
4.2 |
4.8 |
5.4 |
|
Q(l/min) |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
||||
|
3.5SDM4/3 |
3.5SD4/3 |
0.25 |
0.33 |
H(m) |
25 |
25 |
24 |
24 |
23 |
22 |
19 |
16 |
13 |
9 |
|
3.5SDM4/4 |
3.5SD4/4 |
0.37 |
0.5 |
34 |
33 |
33 |
32 |
31 |
29 |
26 |
22 |
17 |
12 |
|
|
3.5SDM4/6 |
3.5SD4/6 |
0.55 |
0.75 |
51 |
50 |
50 |
49 |
47 |
44 |
39 |
33 |
26 |
18 |
|
|
3.5SDM4/8 |
3.5SD4/8 |
0.75 |
1 |
68 |
67 |
66 |
65 |
63 |
58 |
52 |
44 |
34 |
24 |
|
|
3.5SDM4/10 |
3.5SD4/10 |
0.92 |
1.25 |
84 |
83 |
82 |
81 |
78 |
73 |
64 |
54 |
43 |
29 |
|
|
3.5SDM4/12 |
3.5SD4/12 |
1.1 |
1.5 |
101 |
100 |
99 |
98 |
94 |
87 |
77 |
65 |
51 |
35 |
|
|
3.5SDM4/14 |
3.5SD4/14 |
1.3 |
1.75 |
118 |
116 |
115 |
114 |
109 |
102 |
90 |
76 |
60 |
41 |
|
|
3.5SDM4/16 |
3.5SD4/16 |
1.5 |
2 |
135 |
133 |
132 |
130 |
125 |
116 |
103 |
87 |
68 |
47 |
|
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