As is known to all, metering pump has many kinds, it can be classified according to the flow part, drive mode, work mode or pump characteristics, the following branch of machinery Xiaobian with you to understand the difference between gear metering pump and diaphragm metering pump

From the measurement precision in terms of precision gear metering pump without diaphragm metering pump with high precision gear pump because of how much volume efficiency of some materials that slip. But in the spinning industry with metering pump is the basic gear metering pump. From the strict sense, the gear pump can be used for metering pump. So what is the difference between gear metering pump and diaphragm metering pump?

In the diaphragm metering pump family members, hydraulic drive diaphragm pump due to the use of hydraulic oil to drive the diaphragm evenly, overcome the mechanical direct drive under the pump diaphragm force too concentrated shortcomings, enhance the diaphragm life and working pressure ceiling

In order to overcome the work failure caused by diaphragm breakage in single diaphragm metering pumps, some metering pumps are equipped with diaphragm breakage sensors, and the furnace temperature curve tester is used to realize automatic interlock protection when the diaphragm breaks

As a kind of diaphragm metering pump, ultrasonic flaw detector maintenance of electromagnetic metering pumps driven by electromagnet pulsating drive obviates the motor and the transmission mechanism makes the system compact is an important branch of traducer low-pressure metering pump. Measurement with double membrane structure of the pump head to further improve its safety for special applications sensitive to security protection.

Double gear pump with external mesh structure. A pair of meshing gears and the pump cylinder to the suction chamber and discharge chamber. When the gear is rotated the suction side of the tooth cavity mutual disengagement Department interdental volume pressure increases gradually reduce the liquid under pressure into the teeth. As the gears rotate, pH meter between teeth one by one the liquid was brought to the discharge chamber. Then discharge chamber side of the teeth at tooth meshing volume gradually reduced while the liquid discharge gear pump for conveying solid particles, non corrosive liquid, lubricant viscosity range is greater. The pump flow rate can be up to 300 meters 3/ when the pressure is up to 3 x 107 kPa. It is usually used as a hydraulic pump and the distribution of various types of oil.

Gear pump is simple, compact, easy to manufacture, easy to maintain, self suction capacity, but the flow rate, pressure fluctuation and noise. Gear pump must be equipped with safety valve to prevent some reasons, such as the blockage of the discharge pipe, the pump outlet pressure exceeds the allowable value and damage the pump or prime mover

As a flexible diaphragm processing using a specially designed diaphragm metering pump to replace the piston for reciprocating motion under the action of a driving mechanism complete suction discharge process. The isolation effect of diaphragm in structure to realize the isolation between the measured fluid and drive lubrication mechanism. The structural design of high-tech and new materials have greatly improved the diaphragm the service life of the composite with excellent corrosion resistance diaphragm metering pump has become the main fluid metering pump applications.

Now precision metering pump technology has been very mature, its fluid metering transmission capacity of up to 0-100000l/h, the highest working pressure up to 4000bar, covering all areas of industrial production requirements