Comparison of advantages and disadvantages between AR piston pumps, electric AR diaphragm pumps?

　　According to my understanding AR plunger pump is the DC motor driven plunger compound movement will paint inhalation, but AR plunger pump initial suction faster is its strengths. High-pressure airless spraying high efficiency, fine and smooth surface, strong adhesion, less paint loss and get construction, machinery, ships, furniture and other industries widely used. High-pressure airless sprayers are divided into pneumatic airless sprayers (pneumatic diaphragm pumps), electric airless sprayers (AR piston pumps and electric AR diaphragm pumps), due to the pneumatic airless sprayers need to be brought with a compressed air source and limit the use of pneumatic sprayers.

　　Comparison of AR piston pumps and electric AR diaphragm pumps

　　AR plunger pump is a DC motor driven plunger compound movement of the paint inhalation, pressurization and then discharged, due to the plunger exposed, and plunger work in the paint, in the paint abrasive action of the plunger wear is very fast, once equipped with a larger caliber of the nozzle, the plunger reciprocating frequency increases, exacerbating the wear of the plunger, the machine life is short, and the price of replacing the plunger is very expensive, and if the voltage is not normal will directly lead to the work of the DC power irregularities. DC power is not normal. In addition, due to the large back and forth reciprocating motion, the AR plunger pump works with a lot of pulsation, which makes the spraying unstable, and the flatness of the wall surface on which the paint is sprayed will not be good enough. However, the initial suction of AR piston pump is faster is its strength.

　　Electric diaphragm airless sprayer (diaphragm pump), its design is based on the AR plunger pump has been greatly improved, the principle of the motor driven piston reciprocating work (note that the piston is not in direct contact with the paint), and then promote the diaphragm movement, the paint will be absorbed and pressurized out of the nozzle sprayed through the coating object, because of its piston in the wear oil work, the working environment is greatly optimized, the life expectancy is greatly improved, the doping hardening treatment of the piston. After doping hardening treatment of the piston is not easy to damage, coupled with high polymer materials made of high stranding diaphragm more diaphragm pump life further improved. Reliable operation is another advantage of the diaphragm pump, the failure rate is extremely low, the voltage requirements of the bottom, the environmental requirements of the bottom, easy to maintain, maintenance costs are only about one-fifth of the AR piston pump.

　　Listed below are the advantages and disadvantages of the two types of pumps:

　　Electric AR diaphragm pump advantages:

　　1. good pressure control over the entire pressure range, suitable for high-volume transfer of texture, water, etc.;.

　　2. lower purchase cost.

　　Electric AR Diaphragm Pumps Disadvantages:

　　1. need to work continuously.

　　2. difficult to suction, easy to produce cavitation - that is, air into the pump (usually caused by the pump to convey the paint is not enough power); 3.

　　3. cannot handle high viscosity paints (as mentioned above); 4. must be kept clean (as in the case of the pump); and

　　4. must be kept clean (small moving parts); and

　　5. Hydraulic oil is prone to leakage.

　　Advantages of AR piston pumps:

　　1. can easily handle high viscosity paints.

　　2. can produce higher pressure with the same nozzle for better atomization; 3. can work for a long time.

　　3. can work for a long time (24 hours work); 4. more able to withstand hard work.

　　4. better able to withstand tough operating environments.

　　5. low maintenance and easy to repair.

　　6. easy suction; 7.

　　7. run only when required to spray.

　　Disadvantages of AR piston pumps:

　　1. higher manufacturing costs.

　　2. higher acquisition cost Diaphragm pumps utilize eccentric bearings and pistons to create motion to move the diaphragm and pressurize the paint. When the motor rotates, the eccentric bearing rotates with it and one end of the piston rests on the eccentric bearing. The rotation of the eccentric bearing causes the piston to move up and down. When the piston moves down, the diaphragm is pressed down and the inlet valve opens to draw material. When the piston goes upward, the diaphragm is pressed upward, the inlet valve closes, the outlet valve opens and the paint is pressed. The whole process relies on the diaphragm fluctuation suction and generate pressure, the requirement of the diaphragm in the high-pressure environment fluctuations per minute more than 1700 times, resulting in diaphragm and other easy to damage!