Quick Detail

Overview
This new type of electric diaphragm pump has been widely
applied to such industries as petrochemical, ceramic and
metallurgy because breakthrough progress has been made
on diaphragm material. Its features are requiring no water
filling and strong self-sucking capacity.
Motor utilizes reduction gearbox to drive the diaphragms
on piston shaft of left and right sides move back and forth. The
motion of upper and lower four non-return ball valve
diaphragms installed inside the two left and right pump
chambers causes the volume inside working chamber to
change, forces four non-return ball valves alternately opened
and closed so as to continuously suck and exhaust liquids.
Electric diaphragm pump is appropriate for low pressure
occasions.


Select the Diaphragm Correctly
The diaphragm is a major part of this diaphragm pump and correct
selection of the diaphragm can get twice the result with half the effort. The
users shall note nature of their working medium in their orders so as to
provide appropriate diaphragms. Generally the diaphragms include the
following types:
1. Butyronitrile diaphragm, mainly for oil-proof applications.
2. Neoprene 5031#, specially made by our company, mainly for
resistance to acetone and different kinds of acid and alkaline.
3. Fluorine rubber 6021#, specially made by our company, mainly for
high temperature 150℃ and resistance to methylbenzene and corrosion,
but more expensive than other diaphragm types.
4. Food rubber, exclusively for transportation of food and beverage.

Performance and Characteristics
DBY series of electric diaphragm pumps has the following
characteristics:
1. There is no need for water filling or diversion, and its self-priming
capacity is above 5m.
2. Its trafficability is good, and those grains, slurry or others with a
diameter less than 5mm can all be passed easily.
3. The diaphragm will be separated by the working medium and the
transmission machinery, so the medium can by no means leak outwards.
Besides, the pump itself has no shaft seal, so its service life is extended
greatly. According to different medium types, the diaphragm can be divided
into neoprene, fluorine rubber, chemigum and so on, which can meet
requirements of different users completely.
4. Compact and light: with a planetary cycloid transmission structure,
the pump can be small-size, and compared with similar pump types, both
of its volume and weight are half or so.
5. The medium flow-through part on the pump body can adopt cast
iron, stainless steel, rubber lining or fluorine lining, as required by users,
and the motor includes three types: common, explosion-proof and speed
regulation. At present the pumps is being used in the following applications.

Main Applications
1. Different kinds of virulent, inflammable or volatile liquids.
2. Different kinds of strong acid, alkali and strong-corrosion liquids.
3. Transporting high-temperature media:100℃
4. Recovery and circulation of hot water.
5. Loading and unloading of oil tankers, oil depots and oil products.
6. Pumping of pickle, jam, mashed potato, chocolate, etc.
7. Pumping of oil paint, wood gum and pigment adhesive.
8. Different kinds of porcelain glaze, cement grout, mortar and slurry.
9. Different kinds of latex, organic solvents and packing.
10. Pumping of sewage and remaining oil from cabins of oil tankers or
barges for cabin emptying.
11. Hops, yeast slurry, syrup and molasses.
12. Pumping of sewage and sediment from shafts, adits, tunnels and
sewer culverts.
13. Suction and transportation of different kinds of special media.