1、 Performance characteristics:
1. Replace high-level water tanks to prevent secondary pollution of water quality;
2. Gas pressure maintenance, set as needed, and stabilize water supply in the pipeline network;
3. Small land occupation, low investment, short construction period;
4. Adjust peak and valley water volume, automatically start and stop, efficient and energy-saving.


2、 Scope of application:
Centralized water supply for production and daily life;
Secondary pressurization of tap water;
Garden spraying and automatic water supply for water features;
Pipeline network stabilization.


3、 Technical parameters:


1. Flow range: ≤ 5000m3/h
2. Pressure range: ≤ 1.6MPa
3. Temperature range: -20 ℃ to 110 ℃
4. Motor power: ≤ 315kW
5. Pressure regulation accuracy: ≤ 0.01MPa

The variable frequency constant pressure water supply scheme is a new energy-saving water supply scheme, which is a high-tech electromechanical integrated energy-saving water supply device composed of a variable frequency speed controller and a motor water pump. The variable frequency constant pressure water supply equipment takes the water pressure at the outlet of the water pump (or the user's water flow rate) as the control objective, and adjusts the speed of the water pump motor by automatically controlling the output frequency of the frequency converter through a microcomputer, achieving closed-loop regulation of the user's pipeline water pressure, and automatically stabilizing the water pressure in the water supply system within the set pressure range; When the water consumption increases, the frequency increases, the pump speed accelerates, and the water supply increases; When the water consumption decreases, the frequency decreases, the pump speed slows down, and the water supply is reduced. This ensures that the entire user network has sufficient water pressure (consistent with the pressure set by the user) and water volume (varying with the user's water usage situation) at all times.

Composition of variable frequency constant pressure water supply equipment
The variable frequency constant pressure water supply equipment mainly consists of a water pump unit, a pressure measuring and stabilizing tank, a pressure sensor, a variable frequency control cabinet, etc. It can always maintain the pressure gauge pressure (i.e. the water pressure of the user's pipeline network) equal to the user's set value. Can be used for general living or production water supply. The composition of the water supply system includes:
1. Variable frequency water supply equipment is connected to the municipal pipeline network for constant pressure water supply. When the water supply pressure can meet the needs, all pumps will be automatically shut down. Otherwise, the constant pressure water supply equipment will start and increase the pressure to meet the water requirements.

2. Additional small pumps or pressure tanks can be added to completely eliminate the power consumption of low flow or zero flow water supply. When the water supply pressure is low, the main pump will automatically stop and the small pump or pressure tank will operate.

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