What is a diaphragm pump, how many types and how does it work?

What is a diaphragm pump?

Diaphragm pump or Air operated Double Diaphragm pump is a pump for pumping all types of liquids such as chemicals, waste water, oil, solvents, liquid food, which uses air to drive. Diaphragm pumps come in many sizes from 1/4 inch to 3 inch, with the size mainly referring to the pipe size. which the pump can be reduced or increased in size but not too much because it will decrease the flow rate.

How many types of diaphragm pumps are there?

Diaphragm pumps are classified according to the material from which the stabilizer is made. Which can be divided into 4 main types:

Diaphragm Plastic

Polypropylene (PP) for non-corrosive chemicals such as water treatment chemicals such as hydrochloric acid, caustic soda, chlorine, alum, lime, polymers, chemicals in the production system such as glue, water paint, printing ink

Diaphragm Teflon

Polypropylene (PP) for non-corrosive chemicals such as water treatment chemicals such as hydrochloric acid, caustic soda, chlorine, alum, lime, polymers, chemicals in the production system such as glue, water paint, printing ink

Diaphragm Aluminum

Aluminum (Aluminum) for oil, paint, waste water, sludge to be sent to the sludge compression system. Chemicals in the solvent system are solvents, thinners, alcohol, various fuels such as gasoline, diesel oil, fuel oil, lubricants such as hydraulic oil. engine oil

iaphragm Stainless Steel

Stainless Steel 304 (Stainless Steel 304) for high temperature fluids And food or food ingredients such as syrup, fabric softener, dishwashing liquid, type of liquid that contains sludge.
Stainless Steel 316 (Stainless Steel 316) for food or chemical work, such as chicken sauce, suki sauce, consumer liquids such as dishwashing liquid, fabric softener, chemical type such as hydrogen peroxide

How does a diaphragm pump work?

  • Diaphragm pump (Diaphragm pump) is a compression force transfer. The starting point of the force is sent from Air Pressure or Motor depending on the internal working system of that model. Then the force will pass through the power unit causing the piston to (Plunger) Mobile
  • In the delivery stroke, there will be air or oil (depending on the model) to push the diaphragm again. Will push the liquid to cause compression. by checking the suction valve in the closed position and the delivery check valve is in the open position to generate pressure.
  • in the stroke of the suction leg The piston will push back. After that, the oil will create suction to suck the diaphragm. The liquid is then sucked into the pressure chamber. by checking the suction valve in the open position and the inlet check valve is in the closed position to generate suction.
  • And like this repeatedly Also known as the Cycle and the pressure and flow rate.