This equipment adopt microcomputer converter technique, negative pressure treatment technology achieve non-negative pressure water supply, through touch screen show running status, also through vacuum compensation system and fully enclosed structure achieve direct series of tap water pipe network.  Moreover, the equipment overcome the adverse impact of the network.
To set the pressure of needed supplies for customers via computers, on the one hand, when the quantity of water increase, or the water pressure of machine provide lower than the customers' need, the computer would turn the convert automatically, the rotation speed of pump will increase gradually, the pressure of pipe network would go up until the pressure increase to the customers' level. The computer could control the frequency to change in light range to adjust the rotation speed of the water pump, in this way to keep the pressure stable. On the other hand, when the quantity of water decrease from customers using, the computer could decrease the rotation speed of water pump, and the quantity of sending water decrease until the pipe network adjust to right pressure compare with the customers' requirements. The computer decreases the frequency gradually til the booster pumps stop working. In general, not only the system fully take the advantages of pressure of running water, but also it ensures that the pressure of customers' using water shall be stabled in a right way.

2. Feature:
A.Saving electric energy:the plant link with pipeline networks of tap water directly, there is no need for pool and cistern, tandem connect to the pump network of  municipal administration directly, fully taking advantages of original pressure from running water, make up the lack.
Saving electricity up to *0~*0percent.
B.Reducing investment:saving the cost of building pool and saving floor space for customer,thus saving a large sum of construction investment for customer.
The motor adopt the most advanced technology which is Man Machine control system, and it clearly shows water inlet pressure,outlet pressure,setting pressure, pump current, work frequency, the quantity of pumps, trouble inquiry, fault alarm and so on, it also provide the operating parameter, adjusting parameter and operating status. At the same time, display dynamic frames and real-time image, man-machine conversation friendly,full-automatic, intelligent control and management,operation simplification, and reliable performance.
C. Environmental protection:The equipment is totally closed structure,water source without any pollution and water quality is much butter. In addition,the equipment do not install disinfection plant,the customers could drink water which accord to the standard,and go a step further save the investment.

3. Component:
Steady flow compensation
Water pump
Electronic control cabinet
Backflow preventer
Surge tank
Vacuum suppressor
Filter
Pressure sensor
Liquid level sensor
Technical parameters

4. Flow range:0~***0m3 per hour
Pressure regulation precision:less than 0.*1MPa

5. Environment temperature:0~*0dgree

6. Pressure range:**2.5MPa

7. Environment humidity:less than *0 percent,without moisture condensation

8. Power source:**0V(1±*0 percent) *0Hz±2Hz

9. Water quality range:Domestic drinking water

*0. Water temperature:1~*0dgree

*1. PH:6.5~8.5