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.
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.
6、Maximum sand content : 0.25%
7、Minimum well diameter : 4"
1、Reversible motor
2、Single-phase: 110/220V/60Hz or Three-phase: 220/380V/60Hz
3、Equipped with a start control box or digital auto-control box
4、Pumps are designed with casing stress analysis
5、Curve tolerance complies with ISO 9903 requirements
Special mechanical seal
Other voltages or frequency 50Hz
Single phase motor with built-in capacitor

|
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 |
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 |
||||
|
4SDM4/6 |
4SD4/6 |
0.37 |
0.5 |
H(m) |
45 |
43 |
43 |
42 |
40 |
39 |
36 |
33 |
29 |
24 |
19 |
|
4SDM4/8 |
4SD4/8 |
0.55 |
0.75 |
60 |
58 |
57 |
56 |
54 |
52 |
48 |
44 |
39 |
33 |
25 |
|
|
4SDM4/10 |
4SD4/10 |
0.75 |
1 |
75 |
72 |
71 |
69 |
67 |
65 |
60 |
55 |
48 |
41 |
31 |
|
|
4SDM4/12 |
4SD4/12 |
0.92 |
1.25 |
90 |
87 |
85 |
83 |
81 |
77 |
72 |
66 |
58 |
49 |
38 |
|
|
4SDM4/14 |
4SD4/14 |
1.1 |
1.5 |
105 |
101 |
99 |
97 |
94 |
90 |
85 |
77 |
67 |
57 |
44 |
|
|
4SDM4/16 |
4SD4/16 |
1.3 |
1.75 |
119 |
116 |
113 |
111 |
108 |
103 |
97 |
87 |
77 |
65 |
50 |
|
|
4SDM4/18 |
4SD4/18 |
1.5 |
2 |
134 |
130 |
128 |
125 |
121 |
116 |
109 |
98 |
87 |
73 |
57 |
|
|
4SDM4/21 |
4SD4/21 |
1.8 |
2.5 |
157 |
152 |
149 |
146 |
141 |
136 |
127 |
115 |
101 |
85 |
66 |
|
|
4SDM4/24 |
4SD4/24 |
2.2 |
3 |
179 |
174 |
170 |
167 |
161 |
155 |
145 |
131 |
116 |
98 |
76 |
|
|
4SDM4/28 |
4SD4/28 |
2.6 |
3.5 |
209 |
203 |
198 |
195 |
188 |
181 |
169 |
153 |
135 |
114 |
88 |
|
|
4SDM4/32 |
4SD4/32 |
3 |
4 |
239 |
232 |
227 |
222 |
215 |
207 |
193 |
175 |
154 |
130 |
101 |
|
|
- |
4SD4/36 |
3.7 |
5 |
269 |
261 |
255 |
250 |
242 |
232 |
217 |
197 |
173 |
146 |
113 |
|
|
- |
4SD4/42 |
4 |
5.5 |
314 |
304 |
298 |
292 |
282 |
271 |
254 |
230 |
202 |
171 |
132 |
|
|
- |
4SD4/50 |
5.5 |
7.5 |
373 |
362 |
354 |
347 |
336 |
323 |
302 |
273 |
241 |
203 |
157 |
|
|
Model |
Power |
Deliver |
|||||||||||||
|
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 |
||||
|
4SDM4/4 |
4SD4/4 |
0.37 |
0.5 |
H(m) |
42 |
42 |
40 |
40 |
38 |
36 |
32 |
28 |
23 |
17 |
11 |
|
4SDM4/5 |
4SD4/5 |
0.55 |
0.75 |
53 |
52 |
51 |
50 |
48 |
44 |
39 |
34 |
28 |
21 |
13 |
|
|
4SDM4/7 |
4SD4/7 |
0.75 |
1 |
74 |
73 |
71 |
70 |
67 |
62 |
55 |
48 |
40 |
30 |
19 |
|
|
4SDM4/10 |
4SD4/10 |
1.1 |
1.5 |
106 |
104 |
101 |
100 |
96 |
89 |
79 |
69 |
57 |
42 |
27 |
|
|
4SDM4/13 |
4SD4/13 |
1.5 |
2 |
137 |
136 |
131 |
130 |
124 |
116 |
103 |
90 |
74 |
55 |
35 |
|
|
4SDM4/15 |
4SD4/15 |
1.8 |
2.5 |
158 |
157 |
152 |
150 |
143 |
133 |
118 |
103 |
85 |
63 |
40 |
|
|
4SDM4/18 |
4SD4/18 |
2.2 |
3 |
190 |
188 |
182 |
180 |
172 |
160 |
142 |
124 |
102 |
76 |
48 |
|
|
- |
4SD4/21 |
2.6 |
3.5 |
222 |
219 |
212 |
210 |
201 |
187 |
166 |
145 |
119 |
89 |
56 |
|
|
- |
4SD4/24 |
3 |
4 |
253 |
251 |
243 |
240 |
229 |
213 |
189 |
165 |
136 |
101 |
64 |
|
|
- |
4SD4/28 |
3.7 |
5 |
296 |
292 |
283 |
280 |
268 |
249 |
221 |
193 |
159 |
118 |
75 |
|
|
- |
4SD4/31 |
4 |
5.5 |
327 |
324 |
313 |
310 |
296 |
276 |
245 |
214 |
176 |
131 |
83 |
|
|
- |
4SD4/35 |
5 |
7 |
369 |
366 |
354 |
350 |
334 |
311 |
276 |
241 |
198 |
148 |
93 |
|
|
- |
4SD4/39 |
5.5 |
7.5 |
412 |
407 |
394 |
390 |
373 |
347 |
308 |
269 |
221 |
165 |
104 |
|
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