Product Overview

The GDL Series Vertical Multistage Centrifugal Pump is a vertically arranged multistage centrifugal pump designed for high-pressure water supply applications. The multistage impeller configuration delivers high head within a compact vertical footprint, making it suitable for high-rise building water supply, boiler feed water systems and industrial process circulation where elevated pressure is required.

This pump provides reliable water transfer with high efficiency and stable performance. Depending on regional terminology, it may also be referred to as a Vertical Multistage Pump, High-Head Vertical Pump, GDLVertical Multistage Pump or GDLMultistage Centrifugal Pump.

Key Features

• High operating efficiency with optimised hydraulic design for reduced energy consumption
• Compact vertical structure occupies minimal floor space compared to horizontal multistage pumps
• Stable operating performance with rational structural design for long-term reliability
• Rational impeller arrangement delivers high head within a single integrated vertical unit
• Extended service life with quality materials and robust construction
• Suitable for high-rise water supply and industrial process applications requiring elevated pressure

Applications

• High-rise building water supply and domestic pressure boosting
• Industrial water circulation systems
• Boiler feed water systems for industrial and commercial installations
• Industrial process water circulation and pressurisation
• Water treatment plant high-pressure water transfer
• Commercial building water supply and pressure boosting

Customer Benefits

Energy-Efficient Operation

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

Space-Saving Vertical Design

The vertical arrangement requires significantly less floor space than equivalent horizontal multistage pumps, making the GDL Series suitable for pump rooms with limited installation area.

High-Head Capability

The multistage impeller configuration delivers heads up to 240 m, making the GDL Series suitable for high-rise building water supply and applications requiring elevated supply pressure.

Extended Service Life

The rational structural design and quality materials reduce component wear and extend maintenance intervals, lowering total cost of ownership over the pump service life.

Stable Performance Under Variable Conditions

The multistage impeller arrangement provides consistent head and flow output across a wide operating range, accommodating system demand fluctuations.

Wide Operating Range

With flow rates from 2 to 160 m³/h and heads from 10 to 240 m, the GDL Series covers a broad spectrum of high-pressure water supply requirements.

Technical Specifications

Parameter	Specification
Product Series	GDL Series
Pump Type	Vertical multistage centrifugal pump
Flow Rate	2-160 m³/h
Head	10-240 m
Motor Power	0.75-200 kW
Rotational Speed	2900 r/min
Outlet Diameter	DN25-DN200
Installation Type	Vertical

Selection Guidance

To select the appropriate GDL Series vertical multistage pump, please provide the following information:

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

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

Installation and Maintenance

Installation Guidance

The pump should be installed on a level, stable foundation with adequate clearance for inspection and maintenance. The inlet and outlet pipelines must be properly supported so that no external load is transferred to the pump connections.

Pre-Start Inspection

Before starting the pump, confirm the following:

• Pump is securely mounted and level
• Pipeline connections are complete and properly aligned
• Inlet and outlet passages are unobstructed
• Motor wiring is correct and terminals are secure
• 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
• Cleaning strainers and filters when necessary
• Inspecting all pipeline connections for signs of wear or leakage

Available Configurations

• Flow rates from 2 to 160 m³/h
• Heads from 10 to 240 m
• Motor powers from 0.75 to 200 kW
• Rotational speed: 2900 r/min
• Outlet diameters from DN25 to DN200
• Different stage configurations for varying pressure requirements

FAQs

What is a GDL Series Vertical Multistage Pump?

It is a vertical multistage centrifugal pump designed for high-pressure water supply applications, featuring a multistage impeller configuration that delivers high head within a compact vertical footprint.

What is the flow range of the GDL Series?

The GDL Series offers flow rates from 2 to 160 m³/h.

What is the head range?

Available heads range from 10 to 240 m.

What liquids can this pump handle?

It is suitable for clean water and non-aggressive liquids without solid particles or fibres.

Why use a multistage design?

The multistage impeller configuration achieves the required high pressure for applications such as high-rise building water supply and boiler feed water from a single compact vertical unit.

Where can the GDL Series be used?

It is widely used in high-rise building water supply, industrial circulation systems, boiler feed water systems and industrial process pressurisation.

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