Product Overview

The ZX Series Self-Priming Centrifugal Pump is a self-priming centrifugal pump designed for water supply, industrial circulation, environmental water treatment and chemical process applications. The self-priming design enables the pump to evacuate air from the suction line and establish flow without external priming devices, making it suitable for intermittent operation and applications where the pump is positioned above the liquid source.

This pump is widely used in urban environmental buildings, chemical plants, pharmaceutical facilities and water treatment applications. Depending on regional terminology, it may also be referred to as a Self-Priming Centrifugal Pump, ZX Self-Priming Pump or ZX Series Pump.

Key Features

• Self-priming capability eliminates the need for external priming devices and enables installation above the liquid source
• Compact structural design with straightforward installation and maintenance access
• Reliable, smooth operation with rational structural design
• High operating efficiency for reduced energy consumption during water transfer
• Extended service life with robust construction and quality materials
• Self-priming capability unmatched by conventional centrifugal pumps

Applications

• Urban environmental building water supply and circulation
• Chemical industry process water transfer and circulation
• Pharmaceutical industry clean water transfer
• Domestic water supply and pressure boosting
• Environmental water treatment plant process circulation
• Industrial water circulation and pressurisation applications

Customer Benefits

Unique Self-Priming Capability

The self-priming design enables the pump to evacuate air from the suction line and establish flow automatically, allowing installation above the liquid source without the need for external priming equipment or foot valves.

High Operating Efficiency

The hydraulically optimised impeller design and efficient motor selection reduce power consumption during continuous water transfer, lowering utility costs over the pump service life.

Compact and Easy to Install

The compact structural design and straightforward installation requirements reduce installation time and costs, making the ZX Series suitable for retrofit applications and installations with space constraints.

Reliable and Smooth Operation

The rational structural design and balanced impeller configuration ensure dependable, smooth operation under demanding industrial and commercial operating conditions.

Extended Service Life

Quality materials and robust construction reduce component wear and extend maintenance intervals, lowering total cost of ownership over the pump service life.

Wide Operating Range

With flow rates from 3.2 to 400 m3/h and heads from 12 to 80 m, the ZX Series covers a broad spectrum of water supply and industrial circulation requirements.

Technical Specifications

Parameter	Specification
Product Series	ZX Series
Pump Type	Self-priming centrifugal pump
Flow Rate	3.2-400 m3/h
Head	12-80 m
Motor Power	1.1-55 kW
Suction Lift	4-7 m
Outlet Diameter	DN25-DN200
Installation Type	Above liquid level, self-priming

Selection Guidance

To select the appropriate ZX Series self-priming centrifugal pump, please provide the following information:

• Required flow rate (m3/h)
• Required head (m)
• Required suction lift (m)
• Liquid type and temperature
• Available voltage and frequency
• Installation space constraints
• Operating conditions and duty cycle

Final model selection should be confirmed according to the actual duty point, liquid properties and project conditions.

Installation and Maintenance

Installation Guidance

The pump should be installed above the liquid level with adequate clearance for inspection and maintenance. The suction piping must be airtight and properly connected to prevent air leaks that would impair self-priming performance. The discharge piping must be properly supported to prevent load transfer to the pump flanges.

Pre-Start Inspection

Before starting the pump, confirm the following:

• Pump is securely mounted and level
• Suction piping connections are airtight and leak-free
• Discharge piping connections are complete and leak-free
• Motor wiring is correct and terminals are secure
• Pump casing contains the required priming liquid volume
• Rotational direction matches the arrow indicated on the pump casing
• All fasteners are properly tightened

Routine Maintenance

Regular inspection should include:

• Checking mechanical seals for leakage
• Monitoring motor bearing temperature and vibration levels
• Verifying that the pump maintains the required flow and head during test runs
• Inspecting suction piping for air leaks
• Inspecting all pipeline connections for signs of wear or leakage

Available Configurations

• Flow rates from 3.2 to 400 m3/h
• Heads from 12 to 80 m
• Motor powers from 1.1 to 55 kW
• Suction lift: 4-7 m
• Outlet diameters from DN25 to DN200
• Various impeller designs for different liquid types

FAQs

What is a ZX Series self-priming centrifugal pump?

It is a self-priming centrifugal pump designed for water supply, industrial circulation, environmental water treatment and chemical process applications, with the ability to evacuate air from the suction line without external priming devices.

What is the flow range of the ZX Series?

The ZX Series offers flow rates from 3.2 to 400 m3/h, suitable for small to medium water transfer applications.

What is the head range?

Available heads range from 12 to 80 m.

What liquids can this pump handle?

It is suitable for clean water and non-aggressive liquids without solid particles or fibres, making it suitable for water supply, industrial circulation and chemical process applications.

Why use a self-priming design?

The self-priming design enables the pump to evacuate air from the suction line and establish flow automatically, allowing installation above the liquid source without the need for external priming equipment or foot valves.

Where can the ZX Series be used?

It is widely used in urban environmental buildings, chemical plants, pharmaceutical facilities, domestic water supply and environmental water treatment plant process circulation.

Contact Chaodun

For product selection, technical data, performance information or project quotations, please contact Shanghai Chaodun Machinery Manufacturing Group Co., Ltd.

Website: https://chaodunpump.com

Email: Suzion@chaodunpump.com

WhatsApp: +44 751 8050 473