What about diaphragm pumps? How to choose the right one for you?

Pneumatic diaphragm pump is a kind of volumetric pump powered by compressed air, caused by the reciprocating deformation of the diaphragm to cause volume change, its working principle is similar to that of the piston pump, due to the characteristics of the working principle of the pneumatic diaphragm pump, so the pneumatic diaphragm pump has the following characteristics: (1) The pump will not overheat: the compressed air is the driving force, it is an expansion and heat-absorbing process when exhausting, and the temperature is reduced when the pneumatic pump is working, and no harmful gas is discharged.

2) No electric sparks: The pneumatic diaphragm pump does not use electricity as power, and it prevents electrostatic sparks after grounding (3) It can pass through particles containing liquids: because the volumetric work and the inlet is a ball valve, it is not easy to be blocked.

4) The shear force on the material is extremely low: how to suck in and how to spit out when working, so the agitation of the material is small, which is suitable for the transportation of unstable substances.

Sunshine brand has a number of pump experts and all kinds of senior engineers, continuous development and manufacturing, upgraded products have come out every year. Due to the use of hydraulic oil to drive the diaphragm evenly, the shortcomings of excessive concentration of pump diaphragm force under the mechanical direct drive mode are overcome, and the life of the diaphragm and the upper limit of working pressure are improved. The high-tech structural design and the selection of new materials have greatly improved the service life of the diaphragm, coupled with the excellent corrosion resistance characteristics of composite materials, the diaphragm metering pump has become the main pump type in fluid metering applications.

Diaphragm pumps have imported and domestic, there is a certain gap between them, but compared to reliability, durability, wear resistance and other quality, it is still not as good as imported, and the evaluation of a pump can not be directly compared with sales, to consider the long-term, wearing parts service life and **, air consumption to comprehensively consider, if you really need it I can help you recommend.

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Shanghai Shenquan is very happy to answer for you, Quanxin - constant quality!

Diaphragm pump brand introduction:

Shanghai Shenquan was established in 1992, the first batch of domestic diaphragm pump manufacturers, the company's plant is about 2000 square meters, equipped with a well-known machine tool a total of 8 sets, the accuracy error of the nut does not exceed millimeters, which greatly ensures the reliability of the quality and greatly improvesDiaphragm pump leaks, head and flow are insufficientphenomenon.

Diaphragm Pump Product Introduction:

The materials are divided into: stainless steel, cast steel, aluminum alloy, plastic PP, fluid fluorine-lining, PVDF, a total of 6 materials.

Flow rate: up to 62 tons per hour, 1041 litres per minute.

Head: The head is up to 84 meters.

Mainly used in the industry:1Chemical Industry, 2

Water Treatment, 3Petrochemical Industry, 4Coatings Industry, 5

Daily chemical industry, 6Ceramics, 7Mining, 8

Construction, 9Paper Industry, 10Electronics, 11

Food Industry, 12Beverage Industry, 13Pharmaceutical, 14

Automotive, 15Furniture Industry, 16Textile Industry, 17

Alchemy, casting and dyeing industries.

Advantages of diaphragm pumps:

The advantages of diaphragm pumps are mainly reflected in the food and chemical industries, as well as in the mining industry.

He has 2 advantages:

No oil, no electricity, using air source as the powerEspeciallychemical industry and mining industryIt reflects his advantages, and there will be no static electricity.

Relatively low shear force, used in the food industry, his relatively low shear force, can not destroy the food semi-liquid food medium.

In the long run, the effect and life of use and **, although some of the caliber is the same but the effect of use is different, if necessary, you can recommend it.

Diaphragm pump advantages:

1. It can be used to transport fluids with relatively unstable chemical properties.

2. In the handling of hazardous and corrosive materials, the diaphragm pump can completely isolate the materials from the outside world.

3. The diaphragm pump is small in size and easy to move, does not need a foundation, occupies a very small ground, is easy to install and economical, and can be used as a mobile material transfer pump.

Diaphragm pump disadvantages:

1. The pressure cannot be increased, and it is limited by the pressure of the air source, and the upper limit is reached at 6bar;

2. Noise and pipeline vibration are particularly obvious in atmospheric volume;

3. Compared with the screw pump, the diaphragm has a short life and is easy to be damaged;

4. Because the flow rate of diaphragm pump is usually not too large, most of them are used in small systems;

Diaphragm pump is a kind of reciprocating positive displacement pump, and its working original leakage is through the reciprocating motion of the diaphragm, which generates alternating negative pressure and positive pressure on both sides of the pump chamber, so that the fluid circulates back and forth in the pump chamber and is pushed forward out of the pump body. Specifically, the working process of the diaphragm pump is as follows:

Suction stage: During the suction phase of the pump, the diaphragm moves outward, creating negative pressure in the pump chamber. At this point, the inlet valve opens, allowing the fluid to be sucked into the pump chamber.

Push-out stage: In the push-out stage of the pump, the diaphragm moves inward to close the bucket to form positive pressure in the pump chamber. At this point, the outlet valve opens, allowing the fluid to be pushed forward from the pump body to complete the pumping process.

Reverse car grinding stage: When the diaphragm reaches the limit position, the working direction of the pump is reversed. At this point, the inlet valve closes and the outlet valve opens, allowing the fluid to flow in the opposite direction from the pump body until the diaphragm reaches another limit position.

Re-suction phase: When the diaphragm reaches another limit position, the direction of operation of the pump is reversed again. At this point, the inlet valve opens again, the outlet valve closes, and the pump begins the next suction phase.

The key component of a diaphragm pump is the diaphragm, which is usually made of materials such as rubber or polymer. The advantage is that the fluid inside the pump chamber can avoid contact with the external environment, thus reducing fluid contamination and leakage. The diaphragm pump has a simple structure, easy to operate and maintain, good corrosion resistance, high stability, and can adapt to a variety of media transportation.

Therefore, diaphragm pumps are widely used in many industrial fields such as food, pharmaceutical, chemical, petroleum, coatings, and water treatment.