Constant pressure water supply system

The constant pressure water supply system is a type of equipment that regulates pump speed through a variable frequency drive (VFD) to maintain constant pressure in the water supply system. Its core principle is based on a closed-loop control system that combines motor frequency conversion technology with pressure feedback, ensuring that the water supply pressure remains stable at the preset value.

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1. Ultra-Stable Pressure (PID Control):
Utilizes a PID closed-loop control system to adjust motor frequency based on real-time demand. Regardless of usage fluctuations, the output pressure remains constant, eliminating issues like temperature spikes or inconsistent water flow.
2. Strong Storage & Emergency Capacity:
Equipped with large storage tanks or reservoirs, the system ensures continuous supply by relying on stored reserves during municipal outages or peak demand periods, guaranteeing operational continuity.
3. Zero Impact on Municipal Grid:
The system draws water from the tank rather than directly from the grid. Even when running at full capacity, it creates no suction pressure impact on the municipal pipeline for surrounding residents.
4. Soft-Start Protection & Water Hammer Elimination:
Features soft-start and soft-stop capabilities to prevent high-current surges. It effectively eliminates the water hammer effect, significantly reducing the risk of damage to valves and piping.
5. Automated Operation & Remote Control:
Fully intelligent operation with built-in protection against overload, short circuits, and dry-running. Supports IoT-based remote monitoring, allowing managers to track pump room status via mobile or PC.
6. Versatile Applications:
Specifically designed for areas with highly unstable municipal pressure, undersized pipelines, or sites with strict water reserve requirements, such as large factories, hospitals, and fire-fighting systems.
7. Customized Solutions: We provide full customization of the system, including pump models, technical parameters, and functional features. Furthermore, component brands and materials can be specified to meet actual operational needs, ensuring effortless installation and maintenance.

Thanks to its high efficiency, energy savings, stable pressure, and high level of automation, the Constant pressure water supply system is widely used in the following fields:

1. Building Water Supply Systems

High-rise buildings:
The system uses a multi-pump configuration to provide zoned water supply, effectively solving water supply problems caused by insufficient pressure in the municipal network for high-rise residents.

Residential and office buildings:
It can replace the traditional water tank plus pump setup and draw water directly from the municipal supply network when used with a non-negative pressure system. This helps avoid secondary water contamination and saves the space that would otherwise be occupied by a water tank.

2. Industrial Production

Manufacturing:
It provides stable water pressure for production lines, such as cooling systems, cleaning equipment, and boiler feed systems, helping ensure process water quality and equipment safety.

Chemical and pharmaceutical industries:
It can meet the requirements for high-purity water supply by using stainless steel pump units with anti-corrosion treatment to prevent water contamination.

3. Municipal and Public Facilities

Municipal water supply networks:
It can be used as a secondary booster pump station to compensate for insufficient pressure at the end of the municipal pipeline network, ensuring stable water supply in remote areas or during peak demand periods.

Fire protection systems:
It can be linked with the fire protection system and automatically switch to fire-fighting pressure mode in the event of a fire, ensuring sufficient firefighting water supply. A dedicated fire pump set is required for this application.

4. Agriculture and Water Conservancy Projects

Farmland irrigation:
Constant-pressure control allows precise water delivery for drip irrigation and sprinkler irrigation systems, helping save water and improve irrigation efficiency.

Rural drinking water projects:
It helps solve water supply problems in mountainous areas or for scattered households by enabling long-distance, high-head water delivery through a variable frequency pump unit.

5. Special Application Scenarios

Mining and tunnel construction:
It can provide temporary water supply for construction areas and adapt to complex terrain and fluctuating water demand.

Ships and offshore platforms:
With its compact design and resistance to salt spray corrosion, the unit is well suited to domestic water supply and equipment cooling on ships and offshore platforms.

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