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| Product Overview The DQGD vertical low-speed in-line centrifugal pump features a vertical structure with identical inlet and outlet diameters, positioned on the same centerline. It can be installed in pipelines like a valve, boasting a compact and sleek design that saves space and reduces construction costs. With an additional protective cover, it can be used outdoors. It is suitable for occasions with strict requirements for environmental noise, such as air conditioning circulation systems.Model DQGW features a horizontal structure. Product Features The low-speed centrifugal pump is equipped with a low-speed motor based on the vertical centrifugal pump, which significantly reduces operating noise and doubles the service life of wearing parts. It is ideal for air conditioning circulation, heating circulation, and end pressurization of various circulation systems. Its innovatively designed vertical structure further reduces floor space and occupied volume, making it more convenient to use. The impeller is directly mounted on the extended shaft of the motor, resulting in a short axial dimension and a compact structure. The pump and motor bearings are reasonably configured, which can effectively balance the radial and axial loads generated during pump operation, ensuring stable operation with low vibration and low noise. The shaft seal adopts a mechanical seal or a combination of mechanical seals, with imported titanium alloy seal rings, medium-sized high-temperature-resistant mechanical seals, and hard alloy materials for wear-resistant sealing, which can effectively extend the service life of the mechanical seal. Installation and maintenance are convenient. There is no need to disassemble the pipeline system—all rotor components can be pulled out simply by removing the pump coupling seat nuts. The DQGD vertical low-speed in-line centrifugal pump can be operated in series or parallel according to the requirements of flow rate and head. The DQGD vertical low-speed in-line centrifugal pump can be installed vertically or horizontally according to the pipeline layout requirements. Application Scope The low-speed centrifugal pump is mainly used for chilled water and cooling water circulation in air conditioning systems, local or end pressurization circulation in urban heating systems, local constant pressure in urban building fire protection systems, and supporting various air conditioning hot water boilers. |
| Operating Conditions For pumps with a motor power of 0.75kW or above, the maximum working pressure of the pump system is 1.6 MPa (i.e., pump suction pressure + pump head ≤ 1.6 MPa), and the static pressure test pressure of the pump is 2.5 MPa. For pumps with a motor power below 0.75kW, the maximum working pressure of the pump system is 0.8 MPa. Available in hundreds of models to meet various flow, head, and power requirements. |
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