CHL Low-Noise Stainless Steel Multistage Centrifugal Pump

The CHL low-noise stainless steel multi-stage centrifugal pump is a vertical or horizontal multi-stage centrifugal pump that uses high-quality stainless steel (304, 316, 316L) for its wetted parts. While maintaining the high head of traditional multi-stage pumps, it optimizes noise control and corrosion resistance, making it particularly suitable for applications with high demands on water quality and noise levels, such as water supply in high-rise buildings, hot and cold water circulation, and pure water transportation.

Core Working Principle: Liquid Rises Step by Step

The working principle of the CHL pump is the same as that of ordinary multi-stage pumps, but its materials and low-noise design make it more suitable for modern high-end applications:

Step-by-Step Pressurization

The motor drives the pump shaft to rotate at high speed, driving the series of impellers.

The liquid enters the first-stage impeller, gains kinetic energy, and then passes through the guide vanes to the next impeller for further pressurization.

Pressure Accumulation

The multi-stage impellers continuously work, causing the liquid pressure to accumulate step by step, finally reaching the required high head and being discharged from the outlet.

Material Advantages

The pump body, impellers, and guide vanes are all made of stainless steel, ensuring corrosion resistance and rust prevention, while also preventing contamination of the liquid, meeting hygiene and industrial requirements.

Key Features
Feature Detailed Description
Corrosion and Rust Resistant 304/316/316L stainless steel material, suitable for weak acid and alkali liquids, seawater, softened water, etc.; will not rust and seize the pump body.
Hygienic and Safe High surface finish, not easy to scale, meets hygiene standards for the food and pharmaceutical industries.
High Head, Low Flow Rate Designed for high pressure, the multi-stage impellers can achieve heads of hundreds of meters, but with a moderate flow rate, suitable for precise conveying.
Low Noise, Compact Structure Vertical design saves space, the pump runs smoothly with low noise, suitable for pump rooms or residential areas.

Main Application Scenarios

Water Supply for High-Rise Buildings

Domestic water supply pumps, fire fighting booster pumps, ensuring a stable and clean water source for high-rise buildings.

Boiler Feedwater and Hot and Cold Water Circulation

Suitable for heating systems and central air conditioning circulating water, can withstand high temperatures (some models up to 120℃+), maintaining system cleanliness. Water Treatment and Reverse Osmosis (RO) Systems

High pressure forces water through a filter membrane, ensuring water quality is not contaminated by rust, suitable for purified water and mineral water production.

Industrial Processes and Chemical Transfer

Transfer of mildly corrosive liquids, cleaning solutions, electroplating solutions, and other industrial media.

Agriculture and Horticulture

High-pressure micro-sprinkler irrigation, drip irrigation systems, or deep well pumping applications.

Selection and Usage Precautions

Water Quality Differentiation

304 Stainless Steel: Suitable for ordinary clean water, river water, and weakly corrosive liquids.

316/316L Stainless Steel: Suitable for seawater, brine, and strong acid and alkali chemical liquids.

Medium Requirements

Clean, thin, and free of large particles. Liquids containing sand or particles may wear down the impeller; a special sewage pump should be used in such cases.

Temperature Limitations

Standard mechanical seal operating temperature: -15℃ to 105℃.

Hot water or high-temperature liquids (above 120℃) require a customized cooling system or a hot water pump.

Installation Method

Vertical Pump: Radial inlet and outlet, compact installation, easy to connect in series.

Horizontal Pump: Low center of gravity, suitable for industrial applications with high flow rates or extremely high head.