Vertical inline centrifugal pumps are the preferred pump type for chilled water circulation. Featuring a coaxial inlet and outlet design, the pumps can be directly installed in series into the pipeline without pipe rearrangement or independent concrete foundation, making them ideal for new construction and renovation projects with limited mechanical room space. With a vertical compact structure, the pump occupies far less floor area than horizontal pumps. Optimized hydraulic design ensures low vibration and low noise operation, which is well suited for noise-sensitive scenarios such as hospitals, hotels and office buildings.

The cooling water circulation system serves as the core heat exchange unit of HVAC systems. Characterized by long-term continuous operation with large flow rate and low head, it imposes high requirements on pump stability, energy efficiency and working condition adaptability. Anhui Guotai vertical inline pumps and horizontal end-suction pumps are well tailored for cooling water circulation conditions. Adopting optimized hydraulic models, the pumps deliver high-efficiency water transmission with low vibration, low noise and low energy consumption. They are widely applied in cooling water systems of office buildings, hotels, hospitals and large public buildings, ensuring long-term continuous and stable system operation.

Heating circulation and water makeup pressurization systems are critical for the constant temperature and pressure operation of HVAC heating systems. Mainly responsible for hot water heating circulation and system constant-pressure water replenishment, these systems operate continuously under medium-temperature and stable-pressure conditions, requiring pumps with excellent high-temperature resistance, precise pressure regulation, stable performance and high energy efficiency. Anhui Guotai vertical multistage pumps and vertical inline pumps are well suited for such working conditions. Capable of stably realizing hot water circulation, system pressure stabilization and water makeup pressurization, the pumps feature high temperature resistance, stable operation, low noise and low energy consumption, and are widely applied in office buildings, hotels, hospitals and large public buildings.