ZS Series Stainless Steel End-Suction Pump — Compact Corrosion-Resistant Design for Industrial Liquid Transfer
When an industrial facility needs a pump that handles clean water and mildly corrosive liquids reliably while taking up minimal floor space, the ZS Series Stainless Steel Horizontal End-Suction Centrifugal Pump from Chaodun Pump delivers a focused solution. Built using stainless steel stamping, bulging, and welding processes, this pump combines compact size with corrosion resistance and quiet operation across a wide range of industrial applications.
Stainless Steel Construction — Built for Corrosive Environments
The ZS series is constructed entirely from stainless steel using a stamping, bulging, and welding manufacturing process. Unlike cast iron or bronze pumps that corrode over time when exposed to mildly acidic or alkaline liquids, the stainless steel body resists chemical attack and maintains structural integrity across its service life. This makes the ZS series suitable for applications in water treatment, chemical processing, HVAC systems, and food-grade liquid transfer where material compatibility matters.
The stainless steel construction also means the pump can handle liquids with a pH range of 2 to 12 and temperatures between -20°C and +100°C. Whether pumping weak acids, alkalis, condensate, or treated water, the pump body does not degrade, flake, or introduce contamination into the fluid stream.
Compact Horizontal End-Suction Design
The ZS pump features a horizontal end-suction configuration where the suction inlet is positioned on the horizontal axis and the discharge outlet points vertically upward. This layout simplifies piping connections and allows the pump to be installed directly in-line with the suction pipeline. The suction and discharge port diameters are matched to the pump model — for example, the ZS 65-50-200 has a 65 mm suction inlet, 50 mm discharge outlet, and a 200 mm nominal impeller diameter.
The compact footprint is one of the ZS series’ defining characteristics. Because the pump, shaft, and standard motor are directly coupled in a single unit, there is no need for separate base frames, alignment procedures, or coupling guards. The entire assembly mounts on a single foundation, reducing installation space and simplifying maintenance access.
Wide Application Range Across Industries
| Industry | Application |
|---|---|
| Municipal Water Supply | Water plant filtration, distribution network pressure boosting, zone delivery |
| Industrial Processing | Process water systems, cleaning systems, boiler feed water, condensate return |
| HVAC & Cooling | Cooling water circulation, air conditioning systems, chilled water transfer |
| Water Treatment | Distillation systems, separators, swimming pool filtration and circulation |
| Agriculture & Healthcare | Farmland irrigation, medical and pharmaceutical liquid transfer |
Motor and Electrical Specifications
The ZS pump is equipped with a fully enclosed, air-cooled, two-pole standard motor rated at IP55 protection and Class F insulation. The standard voltage options include single-phase 220V at 50Hz and three-phase 380V at 50Hz, with the motor power matched to the pump’s hydraulic performance for each model.
Installation and Operating Conditions
The ZS pump should be installed in a ventilated location protected from freezing. The pump handles clean, thin, non-flammable, and non-explosive liquids without solid particles or fibers. Maximum system operating pressure is 10 bar, maximum ambient temperature is 40°C at altitudes up to 1000 meters. Flexible rubber joints are recommended at both suction and discharge connections.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Series | ZS Series Stainless Steel Horizontal End-Suction Pump |
| Construction | Stainless steel (stamping, bulging, welding process) |
| Example Model | ZS 65-50-200/11.0 (65mm suction, 50mm discharge, 200mm impeller, 11kW) |
| Motor Protection | IP55, Class F insulation |
| Voltage | 50Hz, 1×220V / 3×380V |
| Liquid Temperature | -20°C to +100°C |
| Max System Pressure | 10 bar |
Why Choose the ZS Series from Chaodun Pump
Chaodun Pump manufactures the ZS series using precision stainless steel forming techniques that produce a pump with consistent dimensions, smooth internal surfaces, and reliable hydraulic performance. The direct-coupled motor-pump design eliminates alignment issues and reduces vibration compared to belt-driven configurations. Combined with standard motor compatibility and straightforward maintenance procedures, the ZS series offers a cost-effective solution for facilities that need a durable, corrosion-resistant pump for clean and mildly corrosive liquid transfer.
Frequently Asked Questions
Q: What liquids can the ZS series handle?
Clean, thin, non-flammable liquids without solid particles or fibers, including water, weak acids, weak alkalis, and condensate with pH 2–12 and temperatures from -20°C to +100°C.
Q: What is the maximum system pressure?
10 bar, covering most industrial water supply, HVAC, and liquid transfer applications.
Q: Can the ZS pump be installed outdoors?
Yes, with an appropriate protective enclosure to shield electrical components from water and condensation. The stainless steel pump body is weather-resistant.
Q: How does ZS differ from ISW horizontal centrifugal pumps?
The ZS uses stainless steel construction for corrosion resistance and food-grade compatibility. The ISW typically uses cast iron and is optimized for higher-flow clean water where corrosion is less of a concern.