广州External return caseless diaphragm pump

External return caseless diaphragm pump shell has good heat dissipation performance

The pump head is made of high-quality engineering plastics, acid and corrosion resistant,

Not easy to wear, small deformation, more durable.

Strong single-core power

Adopt pure copper coil, longer life, ensure the water pump

Stable and efficient operation

Precautions when using external return caseless diaphragm pump:

(1) Note that when using the water pump, the working water should be clean, and there should be filtering equipment, otherwise the water pump will be blocked and the pressure will be reduced or even no water will be produced.

(2) After the water pump is finished, please work with clean water for another minute or two, so that the service life of the water pump will be longer.

(3) The water pump is not resistant to oil corrosion, so it cannot pump gasoline, diesel, kerosene and other oils.

(4) The working power supply of the pump is 12V DC, which is usually powered by a battery. It is strictly forbidden to use 220V AC.

Simple daily maintenance of the pump

(1). Power on but the water pump does not rotate, check whether the wire behind the motor is off.

(2) The water pump can spray water when it rotates, but the amount of mist is small, and the pressure is low. Turn on the water pump, and check whether there is any debris in the pump cavity. If the motor bracket is loose, tighten the screws. Note that the inlet and outlet valves cannot be installed backwards.

(3). After the pump is used for half a year or a year, the pressure drop and the spray volume is small. Turn on the water pump and tighten the motor bracket screws. Change the direction of the small die in the cavity up and down, or replace the small diaphragm.

1. The difference between internal reflow/reflow/intelligent type

Answer: There is a reflux device on the top of the reflux type. After reaching a certain pressure, the pressure can be relieved by means of reflux without suffocating the tube. The internal return does not have this function.

The intelligent pump has a pressure switch on the top. When the handle of the sprayer is closed, the pump will stop working. It has the function of turning off the gun and saving electricity and energy.

2. No water? Has the water in the pump been used by someone else?

A: Make sure to remove the two caps first, and each water pump will be tested to see if it is qualified before delivery, and the water pump will be better preserved.

3. How to connect the diaphragm pump?

Answer: The same color wires are connected together, the pump is not divided into positive and negative poles, just connect to the 12V power supply. Power requirements: generally 5a adapter, battery 8ah can be.