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304/316 SS Industrial Submersible Drainage Pump| Sonho Pump| KF/KF4 Series
Discover the SONHO KF/KF-4P Series Industrial Submersible Drainage Pump. Built with 304/316 SS for superior corrosion resistance in chemical, medical, and industrial wastewater treatment. High-efficiency, durable, and precision-engineered.
304/316 SS Industrial Submersible Drainage Pump
Application：
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Chemical & Industrial: Chemical processing plants, paper and pulp industries, steel mills, and dyeing facilities.
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Medical & Laboratory: Wastewater treatment for hospitals, clinics, and research laboratories.
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Technology Sector: Specialized drainage for high-tech electronic manufacturing facilities.
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General Utility: Wastewater treatment plants, basement drainage, food processing, and animal husbandry.
- Suitable for liquids with weak acids and weak alkalis.
FEATURES：
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Corrosion-Resistant Materials: Manufactured from 304/316 Stainless Steel to withstand aggressive chemical environments and acidic wastewater.
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High-Efficiency Motor: Precision-machined rotor and shaft with dynamic balancing for superior stability, reduced vibration, and prolonged bearing life.
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Advanced Sealing Technology: Features heavy-duty mechanical seals (double mechanical seals for 4P models) for maximum wear resistance and leakage prevention.
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Superior Moisture Protection: Cable entry base is reinforced with epoxy resin (KF-4P) or integral plastic design to prevent moisture ingress and enhance electrical insulation.
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Lightweight & Compact: Utilizing precision casting techniques, these pumps are 25% lighter than standard pumps of the same grade, allowing for easier handling and installation.
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Flexible Options: Available with an optional overload protector and an integrated float switch (for models under 2Hp).
| Model | Power Hp (kW) |
Discharge inch |
Phase φ |
Standards | |
|---|---|---|---|---|---|
| Head m | Capacity m³/min | ||||
| KF-205 | 0.5kW | 2″ | 1φ / 3φ | 7 | 0.1 |
| KF-208B | 1 (0.75) | 2″ | 1φ / 3φ | 8 | 0.2 |
| KF-308 | 1½ (1.1) | 3″ | (1φ 220v)/ 3φ | 5.5 | 0.4 |
| KF-315 | 2 (1.5) | 3″ | (1φ 220v)/ 3φ | 8 | 0.5 |
| KF-322A | 3 (2.2) | 3″ | 3φ | 12 | 0.5 |
| KF-437A | 5 (3.7) | 3″/4″ | 3φ | 17 | 0.5 |
| KF-355 | 7½ (5.5) | 3″/4″ | 3φ | 25 | 0.5 |
| KF-475A | 10 (7.5) | 4″ | 3φ | 22 | 1.0 |
| KF-4110 | 15 (11) | 4″ | 3φ | 26 | 1.0 |
| Model | Power Hp (kW) |
Discharge inch |
Phase φ |
Start Method |
Standards | Free Passage mm |
|
|---|---|---|---|---|---|---|---|
| Head m | Capacity m³/min | ||||||
| KF4-322A | 3 (2.2) | 3″ | 3φ | Direct | 9 | 0.5 | 40 |
| KF4-437 | 5 (3.7) | 4″ | 3φ | Direct | 9 | 1.0 | 40 |
| KF4-455 | 7½ (5.5) | 4″ | 3φ | Direct | 11 | 1.0 | 30 |
| KF4-475A | 10 (7.5) | 4″ | 3φ | Direct | 17 | 1.0 | 40 |
| KF4-675A | 10 (7.5) | 6″ | 3φ | Direct | 10 | 2.0 | 45 |
| KF-415 | 15 (11) | 4″ | 3φ | Y-▵ | 20 | 1.0 | 45 |
| KF-615 | 15 (11) | 6″ | 3φ | Y-▵ | 17 | 1.7 | 45 |
| KF-620 | 20 (15) | 6″ | 3φ | Y-▵ | 18 | 2.0 | 55 |
| KF-820 | 20 (15) | 8″ | 3φ | Y-▵ | 13 | 3.5 | 60 |
| KF-630 | 30 (22) | 6″ | 3φ | Y-▵ | 25 | 1.8 | 55 |
| KF-830 | 30 (22) | 8″ | 3φ | Y-▵ | 20 | 3.5 | 60 |
KF/KF4 Series Dimensions & Weight *(Representative Diagram)*
KF Dimension Diagram (Length A, Width B)
KF Dimension Diagram (Height C)
2P-3000RPM Specifications
| MODEL | A (LENGTH) MM | B (WIDTH) MM | C (HEIGHT) MM | WEIGHT KG |
|---|---|---|---|---|
| KF-205 | 230 | 160 | 345 | 14 |
| KF-208B | 260 | 210 | 440 | 20 |
| KF-308 | 300 | 230 | 490 | 24 |
| KF-315 | 315 | 230 | 565/510 | 35/31 |
| KF-322A | 440 | 255 | 550 | 45 |
| KF-437A | 440 | 255 | 560 | 55 |
| KF-355 | 470 | 250 | 570 | 60 |
| KF-475A | 560 | 310 | 700 | 93 |
| KF-4110 | 560 | 310 | 730 | 110 |
4P-1500RPM Specifications
| MODEL | A (LENGTH) MM | B (WIDTH) MM | C (HEIGHT) MM | WEIGHT KG |
|---|---|---|---|---|
| KF4-322A | 560 | 300 | 580 | 80 |
| KF4-437 | 560 | 300 | 650 | 96 |
| KF4-455 | 600 | 360 | 710 | 105 |
| KF4-475A | 720 | 430 | 730 | 154 |
| KF4-675A | 770 | 430 | 730 | 184 |
| KF-415 | 730 | 430 | 900 | 200 |
| KF-615 | 940 | 480 | 950 | 235 |
| KF-620 | 940 | 480 | 950 | 245 |
| KF-820 | 950 | 480 | 990 | 270 |
| KF-630 | 940 | 480 | 1000 | 280 |
| KF-830 | 950 | 480 | 1000 | 300 |
