Plastic Double Diaphragm Pump For Honey

Summary:

An pneumatic plastic double diaphragm pump moves fluid by the alternate and repeated back-and-forth movement (strokes) of two flexible membranes or diaphragms mounted on a common shaft (Figure 1). Although diaphragm pumps can be driven directly, with the shaft connected directly to a motor, an air driven double diaphragm pump pump uses compressed air with a sophisticated distribution system directing the air alternately to two air chambers on the opposite sides of the diaphragms.

Figure 1 Operation of an air driven diaphragm pump

Application:

• Corrosive chemical

• Volatile solvents

• Viscous,sticky fluids

• Shear-sensitive foodstuffs and pharma product

• Dirty water and abrasive slurry

• Smaller solids

• Creams,gels and oils

Advantages:

• Handels a wide variety of fluids with high solids content

• Self priming

• Ability to run dry

• Explosion proof

• Pumping efficiency remains constant

• No mechanical seals, couplings, or motors

• Can not overheat

Limitation:

• Low maximum speed

• Not very energy efficient

• Pulsed flow - requires dampener for reduction

Supply material of range:

Pump casing material: Aluminum(AL), Cast Iron(CI), Stainless steel(SS), Polypropylene(PP),Teflon lined(PTFE)

Diaphragm: PTFE, Nitrile Butadiene Rubber(NBR), Viton

Ball valve: Nitrile Butadiene Rubber(NBR), Stainless steel(SS), PTFE

Valve seat: Nitrile Butadiene Rubber(NBR), PTFE

Specification data:

How the air distribution system works

The YONJOU QBK built-in air distribution system incorporates two moving parts: the air valve spool and the pilot spool, which also are the heart parts for the system. The pressurized air start ingressing into one side hole of pilot spool and then trigger the air valve move. It directs pressurized air to one air chamber while exhuasting the other. The air causes the main shaft/diaphragm assembly to shift to one side (discharging liquid on that side and pulling liquid in one other side). When the shaft reach to the end of the stroke, the diphragm plate actuates the pilot spool. The air start ingressing into other side hole of pilot spool then trigger the air valve to otherside too.

Figure 2 Air distribution system

Figure 3 Generic representation of an air-operated double-diaphragm pump

NOTE: In the event of a power failure, the shut off valve should be closed, if the restarting of the pump is not desirable once power is regained.

We are a professional air operated double diaphragm pump manufacturers in China. We can provide the best air operated double diaphragm pump for sales and competitive price. If you are looking for air operated double diaphragm pump supplier, we are a good choice. Contact us to get the price of 1inch 2inch 3inch 4inch air operated double diaphragm pump, stainless steel air operated double diaphragm pump, etc..