Isw Series Standard Horizontal Single-Stage Pump

The RONGSHENG Isw Series Standard Horizontal Single-Stage Pump is a high-efficiency horizontal single-stage single-suction centrifugal pump, developed in accordance with ISO2858 performance parameters and optimized through advanced domestic hydraulic models. Featuring a compact integrated motor-pump design, this series delivers stable operation, low noise, zero leakage, and simplified maintenance. It is widely applied in industrial and municipal water supply, HVAC circulation, fire protection boosting, water treatment, and agricultural irrigation systems.

Model Designation

Example: ISW80/160-7.5/2

Note: Optional variants are available to suit specific applications, including high-temperature (ISWR), chemical (ISWH), oil (ISWB), and flameproof motor configurations.

Applications

The Isw Series Standard Horizontal Single-Stage Pump is designed for transferring corrosive and non-corrosive liquids in the following fields:

HVAC Systems – Chilled water circulation, freezing water systems, and heating hot water loops

Industrial Water Supply – Process water transfer in chemical, metallurgical, power generation, and paper industries

Municipal & Building Services – Booster sets for high-rise buildings, urban pipe network pressurization, and water treatment plants

Fire Protection – Fire extinguishing systems and pressure boosting stations

Agricultural Irrigation – Sprinkler irrigation and long-distance water delivery

Hot Water Systems – Boiler circulation and hot water boosting for hotels, baths, and district heating (ISWR type for temperatures up to 120°C)

Operating Conditions

Materials of Construction

Structural Features

Integrated Motor-Pump Design 

The impeller is mounted directly on the extended motor shaft, ensuring absolute concentricity between pump and motor shafts. This eliminates on-site alignment and guarantees vibration-free operation.

Back Pull-Out Construction 

Routine maintenance can be performed without removing suction or discharge piping. Simply loosen the cover bolts to withdraw the entire rotating assembly — quick and convenient.

Advanced Hydraulic Model 

Developed using state-of-the-art hydraulic design software, the pump achieves high efficiency with low energy consumption, reducing operating costs by 50%–70% compared to conventional pumps.

Durable Mechanical Seal 

Fitted with tungsten carbide mechanical seals for extended service life, excellent wear resistance, and zero leakage across a wide range of media.

Multi-Directional Discharge Nozzle 

The discharge outlet can be oriented horizontally left, horizontally right, or vertically upward to accommodate diverse piping layouts.

Compact Footprint 

The horizontal close-coupled configuration saves approximately 30% floor space compared to traditional horizontal pumps.

Variant Selection Guide

RONGSHENG Quality Commitment

Manufactured in strict compliance with ISO2858 international standards and JB/T53058-93 Chinese national standards

Key components sourced from world-class suppliers to ensure long mean time between failures (MTBF)

100% factory performance tested to guarantee that every pump meets design specifications upon delivery

RONGSHENG Pumps — Built on Quality, Backed by Service.