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TQWH
The TQWH Series by TQPUMPS is a high-performance, heavy-duty Horizontal Single-Stage Centrifugal Pump engineered specifically for high-capacity chemical processing and industrial fluid transport. Designed to bridge the gap between standard water pumps and specialized chemical process equipment, the TQWH series serves as a robust solution for handling aggressive media with flow rates reaching up to 1200m³/h and heads up to 150m.
Combined with high-grade stainless steel precision casting, the series is built to withstand working pressures of up to 16 bar, ensuring world-class stability and energy efficiency during continuous, long-term operation.
Furthermore, this series offers exceptional versatility to meet diverse industrial requirements. With outlet diameters ranging from DN25 to DN400 and a variety of stainless steel material options, the TQWH pump is the primary choice for large-scale circulating systems, pharmaceutical production, food processing, and complex water treatment facilities. Whether transporting mildly corrosive chemicals or hygienic fluids, the TQWH series provides a secure, reliable, and low-maintenance pumping solution.
High-Performance Hydraulics: Delivers massive flow rates up to 1200m³/h and heads up to 150m. Optimized via CFD fluid dynamics and powered by IE2 high-efficiency motors to maximize output while reducing energy costs.
Superior Corrosion Resistance: Precision-cast from high-grade stainless steel with uniform surfaces. Engineered to handle aggressive media, temperatures up to 80°C, and working pressures up to 16 bar.
Simplified Maintenance: The back-pull-out design allows for internal component servicing without disconnecting the piping. Its compact footprint and B35 installation type ensure stable operation in space-constrained environments.
Industrial-Grade Reliability: Equipped with premium mechanical seals and IP54-rated protection. Every unit undergoes rigorous dynamic balancing and hydrostatic testing to ensure full compliance with ISO 9906 standards.

| Parts | Material of TQWH | ||||||
| 304 | 316 | 316L | 201 | Bronze | Duplex Steel | Alloy 20 | |
| Pump Case | • | ○ | ○ | ○ | ○ | ○ | |
| Impeller | • | ○ | ○ | ○ | ○ | ○ | ○ |
| Shaft | • | ○ | ○ | ○ | ○ | ○ | |
Choosing the right material is critical for the lifespan of your TQWH pump:
Material Grade | Corrosive Resistance | Typical Applications |
SS304 | Standard | Deionized water, mild food acids, and neutral industrial fluids. |
SS316 | High | Brackish water, pharmaceutical ingredients, and diluted organic acids. |
SS316L | Ultra-High | Stronger acids and chloride environments; low carbon prevents weld corrosion. |
Duplex Steel | Maximum | High-concentration brine, phosphoric acid, and aggressive chemical slurries. |
Flow Rate (Max 1200m³/h): Optimized for bulk liquid transfer, reducing the number of pump units required for large-scale production lines.
Motor Power (Up to 160kW): High-torque performance ensures stable pressure even when handling fluids with higher specific gravity than water.
Operating Temperature (Max 120°C): Specifically engineered to handle hot chemical solutions or CIP (Clean-in-Place) fluids in the food industry.
Inlet/Outlet DN50–DN350: A wide range of interface sizes allows for seamless integration into various pipeline standards.
Parameter | Value |
|---|---|
Maximum Flow Rate | 1200m³/h |
Voltage | 380V |
Maximum Head | 150m |
Frequency | 50HZ |
Speed | 2900RPM/1450RPM |
Maximum Motor Power | 315kW |
Structure | Horizontal Single-stage |
Installation Type | B35 |
Outlet Diameter | DN25-DN400 |
Efficiency Class | IE2 |
Seal Type | Mechanical Seal |
Insulation Class | F |
Maximum Working Pressure | 16 bar |
Protection Rating | IP54 |
Liquid Temperature | 80°C |
Cooling Method | TEFC |
Product Certificate | N/A |