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●CP2-0.6 Self-priming Device
1. This device uses compressed air at 0.7Mpa~0.9Mpa as the working medium, and AC 220V power supply as the control voltage. It is designed to suck air, clean water, or liquids with physical and chemical properties similar to clean water.
2. Compressed air is introduced from the air pipe joint, passes through the solenoid valve, and is ejected at high speed from the nozzle, creating a negative pressure around the nozzle. This negative pressure can be used to draw in gases or liquids.
3. After connecting the power supply, connect the gas source. Press the start button. When the gas source pressure reaches the set value of 0.7Mpa, the self-priming device starts working. At this point, timing begins, and when the time reaches the set value, the main motor of the water pump starts, and the self-priming device stops working. The duration of self-priming is related to the size, length, and suction height of the water pump's inlet pipe. This device is preset to 3 minutes at the factory. Users can adjust it according to actual usage. Overview: This product features a double-acting reciprocating piston structure, suitable for pumping fresh water, fuel oil wastewater, and non-corrosive liquids. It is not suitable for liquids containing fibers or other solid particles.

●AELC53 Self-priming Device
This device uses compressed air as the working medium, operates based on the Venturi effect, and uses AC 220V as the control voltage, with water level as the reference to control the water pump motor start. The characteristics of this device are

Sturdy structure, attractive appearance, and occupies little space;
Reliable performance and precise control;
Wide applicability, no adjustment needed;
Slightly higher cost.

The disadvantage of this device is: it requires a compressed air source and a 220V power supply.
The above two types of self-priming water pump devices each have their characteristics, and users can choose according to design requirements and actual usage to meet different needs.

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