Comparison of performance between diaphragm pump and plunger pump

Now only the power piston airless spraying machine and electric diaphragm airless sprayer comparison, piston pump is DC motor unit piston movement will re paint inhalation, after the discharge pressure, because of its exposed plunger and the plunger in the paint in the paint guess homework, grinding effect under the plunger wear very quickly, once equipped with a nozzle caliber the larger, the plunger reciprocating frequency progress, increasing plunger wear, short life of machine. The replacement plunger price is very valuable, if the voltage is not normal, will directly lead to the operation of the DC is not normal. In addition, because of the large reciprocating movement, the plunger pump operation pulse is very big, making the spraying instability, coating spray on the wall flatness is not good enough.

But the initial suction of plunger pump is faster. Diaphragm type airless sprayer (diaphragm), the plan is to get more improvement in piston pump based on the principle for the use of motor piston reciprocating operation of femoral artery (note that the piston is not in direct contact with paint), and then promote the gap movement, will absorb paint pressure after the launch, through the nozzle to the painting object because, the piston operation in wear resistant oil, greatly optimize the operation environment, life greatly improved, through the penetration of hardened piston is not easy to damage, polymer materials with high resistance to twisting barrier diaphragm pump life into further step. Reliable operation is another benefit of the barrier pump, the failure rate is extremely bottom, the voltage request bottom, the environment request bottom, repair simple, the repair cost is only 1/5 of the plunger pump. Barrier pump is cost-effective, and its excellent performance quotation ratio will promote the popularization of barrier pump. Nozzle is another important factor that affects the quality of coating.