Special process conditions, such as positive pressure state orFor negative pressure operation, please contact us when selecting

（1） Overview

DBY pneumatic electric diaphragm pump is a new type of pump. In recent years, due to breakthroughs in diaphragm materials, more and more industrialized countries have adopted this type of pump to replace some centrifugal claw pumps and screw pumps in industries such as petrochemicals, ceramics, metallurgy, etc. Currently, our diaphragm pumps are divided into QBY pneumatic and DBY electric types, and the product design is based on the prototype of ABEL company in the United States and has been appraised by the Ministry of Coal. The DBY type diaphragm pump is suitable for low-pressure applications, where the outlet pressure is ≤ 3Kg/cm2, QBY type is suitable for situations where the outlet pressure is ≥ 5Kg/cm2.

（2） Performance characteristics

The DBY series electric diaphragm pump has the following characteristics:

1、 No need for irrigation or water diversion, with a self-priming capacity of over 7 meters.

2、 With good performance, particles and mud with a diameter of less than 10 millimeters can pass through effortlessly.

3、 Due to the mechanical separation of the conveying medium and transmission by the diaphragm, the medium will not leak outward. And the pump itself has no shaft seal, greatly extending its service life. According to different media, the diaphragm is divided into chloroprene rubber, fluororubber, nitrile rubber, and polytetrafluoroethylene, which can fully meet the requirements of different users.

4、 Small size and light weight: Due to the use of planetary cycloidal transmission structure, the pump type has achieved a small size. Compared with pumps of the same type, its volume and weight have been reduced by about half.

5、 The medium flowing through the pump body can be divided into cast iron, stainless steel, rubber lining, and fluorine lining according to user requirements. Divided into ordinary, explosion-proof, and speed regulating types, this pump is currently being used in the following situations.

（3） Main purpose

1. Various highly toxic, flammable, and volatile liquids.

2. Various strong ether, strong alkali, and strong corrosive liquids.

3. Can transport media with higher temperatures up to 150 degrees.

4. To serve as a front-end pressure feeding device for various filter presses.

5. Hot water recovery and circulation.

6. Oil tanker trucks, oil depots, and oil loading and unloading.

7. Pump kimchi, jam, mashed potatoes, chocolate, etc.

8. Pump paint, gum, pigment adhesive.

9. Various porcelain glazes, cement grout, and mortar are used to mix the slurry.

10. Various rubber pastes, latex, and organic solvents.

11. Use a pump to clean and extract sewage and residual oil from the oil tanker barge.

12. Hops and fermented powder slurry, syrup, sugar dense..

13. Pump sewage and sediment from mines, tunnels, tunnels, and sewers..

14. Suction and delivery of special media.

（4） Precautions

(1) Add oil to bearings and piston shafts;

(2) The export pressure shall not exceed 0.3 MPa;

(3) It is strictly prohibited to install valves at the mouth;

(4) When absorbing media that are prone to freezing, after use, drain and rinse the pump body to prevent damage.

（5） Correct selection of diaphragm

The main component of this diaphragm pump is the diaphragm, and selecting the diaphragm correctly can achieve twice the result with half the effort. Users must specify the properties of the conveying medium when ordering, so that different diaphragms can be equipped at the factory.

product overview

DBY stainless steel electric diaphragm pump is a new type of pump, which has made breakthrough progress in diaphragm material in recent years This pump is used in industries such as solar petrochemicals, ceramics, metallurgy, etc. The main feature of this pump is that it does not require water injection and has a self-priming capacity of over 7m. Particles and mud with a diameter of less than 10mm can pass through effortlessly. Due to the separation of the conveyed medium and transmission mechanical components by the diaphragm, the medium will not leak outward, and the pump itself has no shaft seal, greatly extending its service life. Depending on the medium, the diaphragm is divided into chlorohydrin rubber, fluororubber, nitrile rubber, etc., which can fully meet the requirements of different users.

1、 Working principle and characteristics

The main working principle of an electric diaphragm pump is that the motor "4" drives the diaphragm "2" on the left and right plungers to move back and forth through the gearbox "3". Inside the left and right pump chambers, there are upper and lower one-way ball valves "1" installed. The movement of the diaphragm causes a change in the volume of the working chamber, forcing the four one-way ball valves to open and close alternately, thereby continuously sucking in and removing liquid. In recent years, due to breakthrough progress in diaphragm materials, more and more industrialized countries have adopted electric diaphragm pumps to replace some centrifugal pumps and screw pumps in industries such as petrochemicals, ceramics, metallurgy, etc. The product design is based on the prototype of ABEL company in the United States. Electric diaphragm pumps are particularly suitable for low head medium transportation, that is, when the outlet pressure is ≤ 3kgf/cm2.

2、 Main purpose

a、 Various highly toxic, flammable, and volatile liquids. b、 Various strong acids, strong alkalis, and highly corrosive liquids. c、 Can transport media with higher temperatures up to 150 ℃. d、 As a front-end pressure feeding device for various filter presses. e、 Hot water recovery and circulation. f、 Oil tanker trucks, oil depots, and oil loading and unloading. g、 Pump kimchi, mashed potatoes, chocolate, etc. h、 Pump paint, gum, pigment adhesive. i、 Various porcelain glazes, cement grout, mortar slurry. j、 Various rubber pastes, latex, organic solvents, and fillers. k、 Use a pump to clean and extract sewage and residual oil from the oil tanker barge. l、 Hops and fermented powder slurry, syrup, sugar dense. m、 Pump sewage and sediment from mines, tunnels, tunnels, and sewers. n、 Suction and delivery of various special media.

3、 Performance parameters

4、 Main materials

A、 Pump body material: cast iron, stainless steel, aluminum alloy, cast iron rubber lining, cast iron fluorine lining (F46)

B、 Membrane, ball, and ball seat materials: polytetrafluoroethylene (F4), perfluoroethylene propylene (F46)

Note: Alkali and neutral materials can be made of metal, while acidic materials can be lined with rubber or fluorine