4SDM4 4" Thermal Protection High Speed Balanced Rotor Convenient Borehole Submersible Pump for Sewage Treatment
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4SDM4 4" Thermal Protection High Speed Balanced Rotor Convenient Borehole Submersible Pump for Sewage Treatment is designed to provide reliable and efficient performance, making it an ideal choice for deep well applications. Crafted with precision and care, this submersible deep well pump is built to last.
Applications :
Provides water supply from wells or reservoirs for various use cases.
Caters to domestic, civil, and industrial applications with stable performance.
Supports garden maintenance and agricultural irrigation operations efficiently.
1、It features a high-speed balanced rotor that ensures smooth and stable operation, while the 4sdm4 thermal protection system prevents overheating and damage to the motor.
3、Crafted with precision and care, this submersible deep well pump is built to last. It features a high-speed balanced rotor that ensures smooth and stable operation, while the 4sdm4 thermal protection system prevents overheating and damage to the motor. With its robust construction and advanced features, this submersible water pump is the perfect choice for demanding applications.
Motor and Pump:
Reversible motor
Single-phase: 220-240V/50Hz or Three-phase: 380-415V/50Hz compatibility
Equipped with a start control box or digital auto-control box
Pumps are designed with casing stress analysis
Curve tolerance complies with ISO 9906 requirements
Operating Conditions:
Maximum fluid temperature up to +35℃
Maximum sand content : 0.25%
Minimum well diameter : 4"
Special mechanical seal
Other voltages or frequency 60Hz
Single phase motor with built-in capacitor
Warranty : 2 years
(according to our general sales conditions)

|
Components |
Material |
|
Pump external casing |
AISI 304 SS |
|
Delivery casing |
①Cast-Cu ASTM C85500②AISI 304 SS |
|
Suction lantern |
①Cast-Cu ASTM C85500②AISI 304 SS |
|
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 |
①Cast-Cu ASTM C85500 ②AISI 420 SS |
|
③Cast-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 |
Delivery n≈2850r/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 |
6.0 |
|
Q(l/min) |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
||||
|
4S□M4/6 |
- |
0.37 |
0.5 |
H(m) |
44 |
43 |
41 |
40 |
39 |
37 |
36 |
32 |
28 |
23 |
17 |
|
4S□M4/8 |
4S□4/8 |
0.55 |
0.75 |
59 |
57 |
55 |
54 |
52 |
49 |
47 |
42 |
37 |
30 |
23 |
|
|
4S□M4/10 |
4S□4/10 |
0.75 |
1 |
74 |
71 |
69 |
67 |
65 |
61 |
59 |
53 |
46 |
38 |
29 |
|
|
4S□M4/12 |
- |
0.92 |
1.25 |
88 |
86 |
82 |
81 |
78 |
74 |
71 |
63 |
56 |
45 |
34 |
|
|
4S□M4/14 |
4S□4/14 |
1.1 |
1.5 |
103 |
100 |
96 |
94 |
91 |
86 |
83 |
74 |
65 |
53 |
40 |
|
|
4S□M4/16 |
- |
1.3 |
1.75 |
118 |
114 |
110 |
107 |
104 |
98 |
95 |
85 |
74 |
61 |
46 |
|
|
4S□M4/18 |
4S□4/18 |
1.5 |
2 |
132 |
129 |
123 |
121 |
117 |
111 |
107 |
95 |
84 |
68 |
51 |
|
|
4S□M4/21 |
- |
1.8 |
2.5 |
155 |
150 |
144 |
141 |
136 |
129 |
124 |
111 |
97 |
79 |
60 |
|
|
4S□M4/24 |
4S□4/24 |
2.2 |
3 |
177 |
171 |
165 |
161 |
156 |
147 |
142 |
127 |
111 |
91 |
69 |
|
|
4S□M4/28 |
4S□4/28 |
2.6 |
3.5 |
206 |
200 |
192 |
188 |
182 |
172 |
166 |
148 |
130 |
106 |
80 |
|
|
4S□M4/32 |
4S□4/32 |
3 |
4 |
235 |
229 |
219 |
215 |
208 |
197 |
190 |
169 |
149 |
121 |
91 |
|
|
- |
4S□4/40 |
3.7 |
5 |
294 |
286 |
274 |
269 |
260 |
246 |
237 |
211 |
186 |
151 |
114 |
|
|
- |
4S□4/50 |
4 |
5.5 |
368 |
357 |
343 |
336 |
325 |
307 |
296 |
264 |
232 |
189 |
143 |
|
|
Model |
Power |
Delivery n≈3450r/min |
|||||||||||||
|
1~110V/220V |
3~220V/380V |
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 |
||||
|
4□□M4/4 |
4□□4/4 |
0.37 |
0.5 |
H(m) |
42 |
42 |
40 |
40 |
38 |
36 |
32 |
28 |
23 |
17 |
11 |
|
4□□M4/5 |
4□□4/5 |
0.55 |
0.75 |
53 |
52 |
51 |
50 |
48 |
44 |
39 |
34 |
28 |
21 |
13 |
|
|
4□□M4/7 |
4□□4/7 |
0.75 |
1 |
74 |
73 |
71 |
70 |
67 |
62 |
55 |
48 |
40 |
30 |
19 |
|
|
4□□M4/10 |
4□□4/10 |
1.1 |
1.5 |
106 |
104 |
101 |
100 |
96 |
89 |
79 |
69 |
57 |
42 |
27 |
|
|
4□□M4/13 |
4□□4/13 |
1.5 |
2 |
137 |
136 |
131 |
130 |
124 |
116 |
103 |
90 |
74 |
55 |
35 |
|
|
4□□M4/15 |
4□□4/15 |
1.8 |
2.5 |
158 |
157 |
152 |
150 |
143 |
133 |
118 |
103 |
85 |
63 |
40 |
|
|
4□□M4/18 |
4□□4/18 |
2.2 |
3 |
190 |
188 |
182 |
180 |
172 |
160 |
142 |
124 |
102 |
76 |
48 |
|
|
- |
4□□4/21 |
2.6 |
3.5 |
222 |
219 |
212 |
210 |
201 |
187 |
166 |
145 |
119 |
89 |
56 |
|
|
- |
4□□4/24 |
3 |
4 |
253 |
251 |
243 |
240 |
229 |
213 |
189 |
165 |
136 |
101 |
64 |
|
|
- |
4□□4/28 |
3.7 |
5 |
296 |
292 |
283 |
280 |
268 |
249 |
221 |
193 |
159 |
118 |
75 |
|
|
- |
4□□4/31 |
4 |
5.5 |
327 |
324 |
313 |
310 |
296 |
276 |
245 |
214 |
176 |
131 |
83 |
|
|
- |
4□□4/35 |
5 |
7 |
369 |
366 |
354 |
350 |
334 |
311 |
276 |
241 |
198 |
148 |
93 |
|
|
- |
4□□4/39 |
5.5 |
7.5 |
412 |
407 |
394 |
390 |
373 |
347 |
308 |
269 |
221 |
165 |
104 |
|
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