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Product Overview
The CHL stainless steel horizontal multistage clean water pump is equipped with a horizontal extended-shaft motor, featuring axial suction and radial discharge. All wetted parts are made of premium stainless steel plates formed by stamping and welding, making the pump suitable for slightly corrosive liquids. The CHL series adopts advanced hydraulic models and precise manufacturing technology, offering a wide application range, high efficiency, energy saving, and reliable performance for both industrial and domestic clean water systems.
CHL Series Type Designation
Applications
The CHL stainless-steel horizontal multistage clean water pump is suitable for industrial and domestic applications, including:
• Air-conditioning systems
• Fertilizing and metering systems
• Cooling systems
• Environmental protection applications
• Industrial cleaning
• Water supply and pressure boosting
• Water purification and treatment systems
• Domestic water systems
• Aquaculture and irrigation
• Other specialized purposes
Operating Conditions
● Liquid temperature: -15°C to +70°C (standard type); +70°C to +110°C (hot water type)
● Ambient temperature: up to +40°C
● Maximum operating pressure: 10 bar
● Maximum inlet pressure limited by total operating pressure
● Suitable for thin, clean, non-flammable, and non-explosive liquids without solid particles or fibers
● Can handle mineral water, softened water, pure water, light oil, and low-viscosity chemical liquids
● For liquids with higher density or viscosity, higher-power motors are required
● Suitability depends on chlorine content, pH value, temperature, and solvent composition
Structure Diagram
(Product image)
| No. | Part Name | Material | AISI/ASTM | No. | Part Name | Material | AISI/ASTM |
|---|---|---|---|---|---|---|---|
| 1 | Inlet & Outlet Section | Stainless Steel | AISI304 | 8 | Mechanical Seal | – | – |
| 2 | Connection Pipe | Stainless Steel | AISI304 | 9 | Motor End Cover | Aluminum Alloy | – |
| 3 | Pressure Plate | Stainless Steel | AISI304 | 10 | Base | Cast Iron | ASTM258 |
| 4 | Impeller | Stainless Steel | AISI304 | 11 | Quick Connector | Stainless Steel | AISI304 |
| 5 | Shaft | Stainless Steel | AISI304 | 12 | Guide Vane | Stainless Steel | AISI304 |
| 6 | Plug | Stainless Steel | AISI304 | 13 | Support Diffuser | Stainless Steel | AISI304 |
| 7 | Outlet Diffuser | Stainless Steel | AISI304 | 14 | Flow Channel | Stainless Steel | AISI304 |
Performance Parameters
(Performance table)
| Model | Head (m) | Flow (m³/h) | Power (kW) | Speed (r/min) |
|---|---|---|---|---|
| CHL2-20 | 14 | 2 | 0.37 | 2900 |
| CHL2-40 | 28 | 2 | 0.55 | 2900 |
| CHL4-30 | 22 | 4 | 0.75 | 2900 |
| CHL8-30 | 25.5 | 8 | 1.1 | 2900 |
| CHL12-40 | 39.5 | 12 | 2.4 | 2900 |
| CHL16-20 | 21 | 16 | 2.2 | 2900 |
| CHL20-30 | 33 | 20 | 4 | 2900 |
Maintenance and Service
1. Ensure inlet pipelines are fully sealed; leakage of water or air is not allowed.
2. Avoid prolonged operation under cavitation conditions.
3. Prevent overcurrent during long-term operation at large flow.
4. Regularly check motor current to keep within the design range.
5. Assign dedicated personnel to monitor operation and prevent unexpected events.
6. Lubricate bearings every 500 hours of operation.
7. After long-term use, inspect for wear or vibration; replace worn parts and bearings. Major overhaul every 12 months.
8. Mechanical seal lubrication must remain clean and particle-free.
9. Never allow mechanical seal dry operation.
10. Rotate the pump manually several turns before startup to prevent seal damage.
Troubleshooting
Problem: Pump not delivering water
Cause: Valves closed, air in suction line, impeller blockage, or reverse rotation.
Solution: Open valves, remove blockages, tighten seals, refill pump chamber, and correct motor wiring.
Problem: Insufficient flow
Cause: Pipe or impeller blockage, low voltage, or worn impeller.
Solution: Clean impeller, stabilize voltage, replace damaged components.
Problem: Excessive power consumption
Cause: Overload or high suction head.
Solution: Reduce flow rate, adjust outlet valve, or lower suction height.
Problem: Noise or vibration
Cause: Unstable piping or damaged bearings.
Solution: Secure pipeline, replace bearings, remove trapped air.
Problem: Motor overheating
Cause: Overload or voltage drop.
Solution: Adjust valve opening, maintain rated voltage.
Problem: Leakage
Cause: Worn mechanical seal or uneven sealing surfaces.
Solution: Replace seals, retighten bolts, or repair pump casing.
OEM & Custom Solutions
We offer OEM/ODM services including stainless-steel materials, customized voltage (220V/415V/460V), explosion-proof motors, extended shafts, and control systems. Custom labeling, packaging, and flanges (DIN/ANSI/JIS) are available. All pumps meet ISO9001 and CE export standards for municipal, industrial, and domestic use.
FAQs for Oversea Buyers
Q: What’s the main advantage of CHL pumps?
A: High efficiency, compact design, and all-stainless-steel construction suitable for clean and slightly corrosive liquids.
Q: What’s the temperature range?
A: Standard type: -15°C to +70°C; hot water type: up to +110°C.
Q: What industries use CHL pumps?
A: HVAC, water treatment, industrial cleaning, pressure boosting, and domestic water supply systems.
Q: Are the pumps suitable for continuous operation?
A: Yes, they are designed for stable 24-hour operation with minimal maintenance.
Q: What materials are available?
A: Standard AISI 304 stainless steel; other grades optional upon request.
Q: How often should maintenance be done?
A: Lubricate bearings every 500 hours; perform annual inspection for seals and wear parts.
Q: Do you offer OEM branding?
A: Yes, OEM branding, customized packaging, and export configurations are available for global distributors.