Jiangsu Rongsheng Import and Export Co., Ltd. provides DG Series Horizontal Multistage Centrifugal Pump solutions for industrial applications requiring stable liquid transfer. As a China manufacturer and supplier of industrial equipment solutions, we focus on customized equipment manufacturing, technical guidance, installation support, and after-sales service for global customers.

The DG Series pump is a horizontal, single-suction, multistage centrifugal pump designed for transferring liquids without solid particles or corrosive properties. It adopts a sectional structure with multiple impellers arranged on the rotor, providing a practical solution for industrial fluid transportation where higher pressure requirements are needed compared with single-stage pump structures.

The pump is suitable for liquid temperatures from -20°C to 105°C, with an inlet pressure below 0.6 MPa. According to different project requirements, the pump can be equipped with mechanical seal or packing seal structures.

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Key Features of DG Series Multistage Pump

Horizontal Multistage Structure

The horizontal multistage design allows the pump to achieve pressure increase through multiple impeller stages. This structure provides flexibility for industrial systems where different operating requirements need to be considered during pump selection.

Sectional Pump Design

The pump body consists of the suction section, middle sections, and discharge section. These parts are connected through tie bolts to form an integrated pump structure.

This sectional design also makes the internal components easier to inspect and maintain during service operations.

Balanced Rotor Operation

The rotor assembly includes the shaft-mounted impellers and balance disc. The axial force generated during operation is balanced by the balance disc, helping maintain stable rotor operation.

Flexible Shaft Sealing Options

The shaft sealing area can be configured with either mechanical seal or packing seal according to the application requirements.

The sealing structure helps prevent leakage during operation while supporting different working conditions.

Shaft Protection Design

A replaceable shaft sleeve is installed at the shaft sealing area to protect the pump shaft and support maintenance requirements.

Direct Motor Drive

The pump is driven directly by the original motor through an elastic coupling. When viewed from the motor side, the pump rotates clockwise.

Pump Structure and Working Principle

The DG Series pump adopts a sectional multistage centrifugal structure. The main components include:

During operation, the motor drives the pump rotor through the elastic coupling. The impellers rotate together with the shaft, transferring energy to the liquid step by step.

The balance disc works with the rotor structure to balance axial force, while bearings support stable rotation. The sealing system provides protection at the shaft area through mechanical seal or packing seal design.

Installation and Technical Service

Jiangsu Rongsheng provides technical support throughout the equipment application process, including:

Technical Consultation

Assist customers with application communication and pump selection before order confirmation.

Installation and Commissioning Support

Provide installation guidance and commissioning assistance according to project requirements.

Operator Training

Provide operation guidance and technical training for customer personnel.

After-Sales Service

Provide technical support for equipment operation and maintenance.

Frequently Asked Questions

What type of liquid can the DG Series pump transfer?

The DG Series pump is designed for transferring liquids without solid particles and without corrosive properties.

What is the applicable liquid temperature range?

The applicable liquid temperature range is from -20°C to 105°C.

What is the inlet pressure requirement of the pump?

The pump inlet pressure should be less than 0.6 MPa.

Does the DG Series pump use a mechanical seal?

Yes. The shaft sealing structure can use either a mechanical seal or packing seal according to the application requirements.

How is the pump connected to the motor?

The pump is directly driven by the original motor through an elastic coupling.

What direction does the pump rotate?

When viewed from the motor side, the pump rotates clockwise.

How can I confirm whether this pump is suitable for my project?

Customers can provide information about the liquid, operating conditions, and system requirements. Our technical team will assist with pump selection and technical confirmation.