Product Description
Model Code Meaning

Product Overview
The CHL stainless steel horizontal multistage pump (outer-cylinder type) is equipped with a horizontal extended-shaft motor, featuring axial suction and radial discharge. All wetted components are made of high-quality stainless-steel plates through stamping and welding, enabling the pump to handle slightly corrosive media. With an excellent hydraulic design and advanced manufacturing technology, the pump offers a wide application range, high efficiency, energy savings, and reliable performance.
Application Range
The CHL stainless steel horizontal multistage pump (outer-cylinder type) is suitable for both industrial and domestic water applications.
● Air-conditioning systems
● Fertilization and dosing systems
● Cooling systems
● Environmental applications
● Industrial cleaning
● Water supply or pressure-boosting systems
● Water treatment (water purification)
● Domestic water supply
● Aquaculture
● Various special customized applications
Operating Conditions
● Liquid temperature:
• Standard type: −15℃ to +70℃
• Hot-water type: +70℃ to +110℃
● Ambient temperature: up to +40℃
● Operating pressure: 10 bar
● Maximum inlet pressure is limited by the operating pressure.
● Medium to be pumped:
● Thin, clean, non-flammable, non-explosive liquids free of solid particles or fibers.
● Suitable for conveying mineral water, softened water, purified water, light oils and other light chemical media.
● When the density or viscosity of the pumped liquid exceeds that of water, a higher-power motor must be selected if necessary.
● The applicability of the pump for a specific liquid depends on multiple factors, mainly chloride content, pH value, temperature, solvent/oil content, etc.
Structural Diagram

|
No.
|
Name
|
Material
|
AISI/ASTM
|
No.
|
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 Coupling
|
Stainless Steel
|
AISI304
|
|
5
|
Shaft
|
Stainless Steel
|
AISI304
|
12
|
Diffuser
|
Stainless Steel
|
AISI304
|
|
6
|
End Cover
|
Stainless Steel
|
AISI304
|
13
|
Support Diffuser
|
Stainless Steel
|
AISI304
|
|
7
|
Discharge Diffuser
|
Stainless Steel
|
AISI304
|
14
|
Flow Guide
|
Stainless Steel
|
AISI304
|
Performance Parameters
|
Model
|
Head (m)
|
Flow Rate (m³/h)
|
Power (kW)
|
Speed (rpm)
|
|
CHL2-20
|
14
|
2
|
0.37
|
2900
|
|
CHL2-30
|
21
|
2
|
0.55
|
2900
|
|
CHL2-40
|
28
|
2
|
0.55
|
2900
|
|
CHL2-50
|
35
|
2
|
0.55
|
2900
|
|
CHL2-60
|
42
|
2
|
0.75
|
2900
|
|
CHL4-20
|
15
|
4
|
0.55
|
2900
|
|
CHL4-30
|
22
|
4
|
0.75
|
2900
|
|
CHL4-40
|
30
|
4
|
0.75
|
2900
|
|
CHL8-10
|
8.5
|
8
|
0.75
|
2900
|
|
CHL8-20
|
17
|
8
|
0.75
|
2900
|
|
CHL8-30
|
25.5
|
8
|
1.1
|
2900
|
|
CHL8-40
|
34
|
8
|
1.5
|
2900
|
|
CHL8-50
|
42.5
|
8
|
2.2
|
2900
|
|
Model
|
Head (m)
|
Flow Rate (m³/h)
|
Power (kW)
|
Speed (rpm)
|
|
CHL12-10
|
9.5
|
12
|
0.75
|
2900
|
|
CHL12-20
|
19.5
|
12
|
1.2
|
2900
|
|
CHL12-30
|
29.5
|
12
|
1.8
|
2900
|
|
CHL12-40
|
39.5
|
12
|
2.4
|
2900
|
|
CHL12-50
|
50
|
12
|
3
|
2900
|
|
CHL16-10
|
10
|
16
|
1.1
|
2900
|
|
CHL16-20
|
21
|
16
|
2.2
|
2900
|
|
CHL16-30
|
32
|
16
|
3
|
2900
|
|
CHL20-10
|
9.5
|
20
|
1.1
|
2900
|
|
CHL20-20
|
21
|
20
|
2.2
|
2900
|
|
CHL20-30
|
33
|
20
|
4
|
2900
|
OEM & Custom Solutions
We offer OEM and customized solutions for CHL stainless steel horizontal multistage pumps, including customized nameplates and branding, special voltage and frequency, material upgrades for specific media, customized connections, flanges and ports, as well as tailored performance for particular flow and head requirements. Packaging, manuals and documentation can be customized for overseas distributors and project contractors.
FAQs for Oversea Buyers
1. What liquids can the CHL pump handle?
The CHL pump is suitable for clean water and light corrosive liquids such as softened water, pure water, mineral water and light chemical media, as long as they are non-flammable and without solid particles.
2. Can CHL pumps be used for hot water applications?
Yes, the hot water type can handle liquids up to about 110℃. Please specify medium temperature and composition when ordering so that proper materials and seals can be selected.
3. Is stainless steel used for all wetted parts?
All liquid-contact parts, including casing, impeller and shaft, are made from high-quality stainless steel (AISI304), which improves corrosion resistance and hygiene for water treatment and food-related uses.
4. What is the typical delivery time for CHL pumps?
Standard CHL models are usually available within 7–15 days after order confirmation, while customized voltage, materials or special configurations may require 20–30 days depending on quantity.
5. Can you provide OEM branding and customized nameplates?
Yes, we support OEM services including customized nameplates, logos, pump colors, packaging and documentation to match your brand and local market requirements.
6. How should I select the correct CHL model?
Please provide required flow, head, medium type, temperature, power supply and installation conditions. We will recommend suitable CHL models and power ratings to ensure efficient and reliable operation.
7. What after-sales support and spare parts are available?
We provide technical support, installation guidance and long-term supply of spare parts such as mechanical seals, bearings, impellers and shafts for CHL pumps used in overseas projects.