QYW25-70 Pneumatic Submersible Sewage Pump: Enhanced Performance and Safety for Underground Applications
The QYW25-70 Pneumatic Submersible Sewage Pump is an upgraded version of the traditional QYQ17-70 model, incorporating a high-efficiency hydraulic design with an improved vane air motor. The exhaust port has been repositioned and optimized to enhance performance, while structural improvements have led to better efficiency, durability, and standardization. The pump now features a more compact and rational layout, with enhanced materials and precision, resulting in increased sewage capacity, reduced noise levels, and improved working conditions in underground environments.
Key specifications include:
- **Flow Rate**: 25–38 m³/h
- **Head**: 70–20 m
- **Working Air Pressure**: 0.4–0.6 MPa
- **Speed**: 4500–5000 rpm
- **Air Consumption**: 4–5 m³/min
- **Maximum Particle Size**: 14 mm
- **Dimensions**: 350 × 200 × 510 mm
- **Weight**: 31 kg
This model utilizes a new semi-open impeller, which increases pump efficiency by up to 30%. Its compact and lightweight design makes it ideal for use in confined spaces. The pump’s suction structure allows for efficient handling of solid particles and fibrous materials without clogging or damage. The overall construction is simple, easy to assemble and maintain, and suitable for use in hazardous environments such as mines, where safety from methane and coal dust is critical.
The pump also includes a newly designed muffler at the exhaust port, significantly reducing noise levels and improving the working environment. The air motor consists of several key components, including the rotor, blades, cylinder, housing, and upper/lower cylinder heads. High-pressure gas enters through blow holes, driving the blades and rotating the rotor. A sealing cavity beneath the housing ensures effective separation between gas and water, enhancing the sealing performance.
The pump body, impeller, cover, and seat are all designed for easy maintenance. An oil mist system is integrated into the pump, ensuring proper lubrication and extending the service life of internal components. This pump is widely used in mining operations, sewage systems, and industrial applications where reliable submersible pumping is required.
Jining Huiye Mining Machinery Co., Ltd. specializes in manufacturing a wide range of submersible pumps, including pneumatic sewage pumps, spray pumps, BRW40/80/125 emulsion pumps, mine resistance pumps, injection pumps, and water centrifugal pumps. Their products are known for reliability, efficiency, and compliance with industry standards.
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