Key Features & Advantages
- Stainless Steel Shaft: The pump shaft is manufactured from corrosion-resistant stainless steel, enhancing durability and ensuring reliable operation in water supply and mild fluid handling applications.
- Y2 National Standard Motor: Utilizes high-efficiency, reliable Y2 series three-phase motors that comply with national standards. The motor is directly coupled to the pump, creating a robust and compact unit.
- High-Temperature Resistant Bearings: Equipped with bearings designed for elevated temperature operation, allowing the pump to handle hot water circulation (e.g., in HVAC systems) and withstand the conditions of continuous duty.
- High-Temperature Mechanical Seals: Incorporates mechanical seals constructed with high-temperature-resistant materials. This is essential for maintaining a leak-free seal when pumping hot fluids, ensuring long-term reliability and reducing maintenance.
Model Number Instruction
Understanding the model code is key to selecting the right pump. The naming convention typically follows this pattern, with variations (A, B) indicating impeller trim for different performance points on the same pump frame:
- IRG/ISW: Series designation (Pipeline Centrifugal Pump).
- First Digits (e.g., 50, 65, 80): Inlet/Outlet Nominal Diameter (mm).
- Second Digits (e.g., 100, 125, 160): Nominal Impeller Diameter (mm), related to the pump’s head capability.
- Suffix (I): Often denotes a larger flow variant within the same inlet size.
- Suffix (A, B): Indicates a trimmed (reduced diameter) impeller, offering a lower head/flow point on the same pump casing for finer system matching.
Example: IRG 50-100= Pipeline pump with 50mm ports and 100mm nominal impeller (basic model). IRG 50-100A= Same pump with a trimmed impeller for lower performance.
Technical Specifications (Categorized by Port Size)
The IRG/ISW series is extensive. The tables below present a selection of models from key size ranges. All models operate at a standard speed of 2900 RPM for 2-pole versions unless otherwise part of a specialized line.
50mm Port Series (Sample)
| No. | Model | Flow (m³/h) | Head (m) | Power (kW) | Voltage (V) | Speed (RPM) |
|---|---|---|---|---|---|---|
| 1 | 50-100 | 12.5 | 12.5 | 1.1 | 380 | 2900 |
| 2 | 50-100A | 11 | 9.68 | 0.75 | 380 | 2900 |
| 3 | 50-125 | 12.5 | 20 | 1.5 | 380 | 2900 |
| 4 | 50-125A | 11.2 | 17.2 | 1.1 | 380 | 2900 |
| 5 | 50-160 | 12.5 | 32 | 3 | 380 | 2900 |
| 6 | 50-160A | 11.7 | 28 | 2.2 | 380 | 2900 |
| 7 | 50-160B | 10.5 | 22.5 | 1.5 | 380 | 2900 |
| … | … | … | … | … | … | … |
| 14 | 50-100(I) | 25 | 12.5 | 1.5 | 380 | 2900 |
| 15 | 50-100(I)A | 22.4 | 10 | 1.1 | 380 | 2900 |
| … | … | … | … | … | … | … |
65mm Port Series (Sample)
| No. | Model | Flow (m³/h) | Head (m) | Power (kW) | Voltage (V) | Speed (RPM) |
|---|---|---|---|---|---|---|
| 1 | 65-100 | 25 | 12.5 | 1.5 | 380 | 2900 |
| 2 | 65-100A | 22.4 | 10 | 1.1 | 380 | 2900 |
| 3 | 65-125 | 25 | 20 | 3 | 380 | 2900 |
| 4 | 65-125A | 22.4 | 16 | 2.2 | 380 | 2900 |
| … | … | … | … | … | … | … |
| 17 | 65-100(I) | 50 | 12.5 | 3 | 380 | 2900 |
| 18 | 65-100(I)A | 46.8 | 10 | 2.2 | 380 | 2900 |
| … | … | … | … | … | … | … |
(Note: The document contains extensive tables for 80mm, 100mm, 125-150mm series with models up to 90kW. The pattern continues with increased flow and head capabilities for larger port sizes.)
Applications
- Building water supply and pressure boosting in high-rise apartments, hotels, and offices.
- Hot and chilled water circulation in HVAC (Heating, Ventilation, and Air Conditioning) systems.
- Industrial process water supply and cooling water circulation.
- Water treatment plant circulation and transfer.
- General clean water transfer in agricultural and irrigation systems.
Why Choose DONGTAO IRG/ISW Pipeline Centrifugal Pump Series?
- Compact & Integrated Design: The close-coupled design between pump and motor saves space, simplifies alignment, and reduces the overall footprint of the pumping unit.
- Easy Installation & Maintenance: In-line installation eliminates the need for complex baseplates and alignment. The back pull-out design allows for servicing the rotating assembly without disconnecting the pipeline.
- Wide Range & Precise Selection: An exceptionally comprehensive series with multiple port sizes and trimmed impeller options (A, B, C variants) allows for precise selection to match exact system duty points, improving efficiency.
- Built for Continuous Duty: High-temperature seals and bearings, coupled with reliable Y2 motors, make these pumps suitable for 24/7 operation in critical water circulation and supply systems.
Contact Us for Pipeline Pump Selection
Choosing the correct model from the extensive IRG/ISW series is crucial for system efficiency. Please provide your required flow (m³/h), head (m), fluid type, and temperature. Our technical team will use the complete performance curves to select the optimal model (including the correct A/B/C trim if needed) and provide a detailed quotation.
