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**Multistage Pump DG45-80 Sub-High Pressure Boiler Feed Pumps** are manufactured strictly in accordance with the following standards:
- **GB/T 5657-2013 Technical Specifications for Centrifugal Pumps (Class Three)**
- **JB/T 1051-2006 Multistage Centrifugal Pump – Types and Basic Parameters**
- **GB/T 13006-1991 Technical Specifications for Mixed and Axial Flow Pumps**
- **GB/T 13007-2011 Centrifugal Pump Efficiency**
- **MT/T 114-2005 Multistage Pumps for Coal Mines**
**Applications:**
These high-performance multistage pumps are widely used in various industrial and commercial applications, such as:
- Reverse Osmosis
- Boiler Feed
- Shower Systems
- Spraying Processes
- Cogeneration
- Pressure Boosting
- High-Pressure Cleaning
- Snow Making
- Condensate Handling
- Mine Dewatering
**Nomenclature Explanation:**
The model number **DG45-80x6** is structured as follows:
- **DG**: Indicates a multistage centrifugal boiler feed pump
- **45**: Refers to the design flow rate of 45 m³/h
- **80**: Represents the single-stage head of 80 meters
- **6**: Signifies that the pump has 6 stages, meaning it includes 6 impellers
**Performance Table:**
The DG45-80 series can be configured with 6 to 12 stages, offering a consistent flow range of 36–62 m³/h, but varying head requirements from 409m to 1003m. Here’s an example of the performance data:
| Capacity (m³/h) | Head (m) | Speed (r/min) | Efficiency (%) | Power (kW) | Motor | NPSHr (m) | Impeller Dia. (mm) | Weight (kg) | Shaft Power (kW) |
|------------------|----------|---------------|----------------|------------|--------------|-----------|--------------------|-------------|------------------|
| 36 | 502 | 2950 | 50 | 160 | Y315L1-2 | 3.9 | 260 | 113 | 98.4 |
| 45 | 480 | 2950 | 55 | 160 | Y315L1-2 | 4.0 | 260 | 107 | 107 |
| 62 | 409 | 2950 | 56 | 160 | Y315L1-2 | 5.5 | 260 | 123.3 | 123.3 |
**Work Flow Process:**
Each unit undergoes a comprehensive manufacturing process including:
- Casting
- As-cast polishing and anti-rust painting
- CNC machining and anti-rust oil application
- Parts testing (vision inspection, dimensional measurement, impeller static balance test)
- Casing construction and pressure testing
- Rotor installation and dynamic balance testing
- Pump assembly
- Mechanical seal testing
- Coupling deflection testing
- Test bed evaluation
- Painting and packaging
- Final shipment
**OEM Services Available:**
We offer customized solutions based on your specific installation needs, including:
1. Shaft extension end at the outlet instead of the inlet
2. Suction nozzle direction options: right, left, or radial (as per DG series)
3. Flange options according to DIN, JIS, ANSI, or GB/T 9113-2010 standards
4. Material choices: cast iron, ductile iron, carbon steel, stainless steel, etc.
**Why Choose Us?**
- Advanced pump designs with over 20 years of industry experience
- Strict quality control under ISO 9001:2008 with skilled workers
- A large-scale water pump testing center equipped with over 50 advanced instruments and machines
- Large inventory of spare parts and high production capacity for fast delivery
- Professional sales team providing excellent customer service at all times
**Packaging & Shipping:**
- **Packing:** Standard wooden cases or custom packaging as required
- **Shipping Options:** FCL/LCL, by truck, train, ship, or air
Our goal is to provide reliable, high-quality multistage pumps at competitive prices, ideal for high-head water transportation across multiple industries. Whether you need standard models or customized solutions, we are here to support your needs. Let us help you find the perfect pump for your application.
Water Dispersible Elastomer Gel,Dimethicone Dimethicone Crosspolyme,Vinyl Dimethicone Crosspolymer,Water Soluble Silicone Wax
Nanjing Manta New Material Co., Ltd. , https://www.mantasil.com