The flow metering pump is adjustable, so it regulates what? Keyu mechanical Xiaobian tell you the metering pump used flow adjustment methods are: adjusting the plunger or piston stroke, regulating pump color, has adjustable stroke and pump speed three, the adjustment process is the most widely used. Change. The method is simple and reliable, can still maintain a high metering accuracy when the flow rate is small. There are three kinds of stroke adjustment way:

1, when parking in the parking: manual adjustment stroke manual metering pump. Liza.

2, manual adjustment in operation: changing axial displacement in pump operation to simplify the change of crank radius to achieve the purpose of adjusting stroke length. Commonly used methods include N shaped crankshaft adjustment, L shaped crankshaft adjustment and eccentric cam adjustment.

3, automatic operation in operation: there are two kinds of pneumatic control and electric control. Pneumatic control is achieved by changing the gas pressure signal to automatically adjust the stroke. Electric control is to change the electrical signal automatically to adjust the purpose of the trip.

The control of metering pump: the precise machining accuracy ensures the volume of each pump and the precise measurement of the transported medium. Under a certain effective piston area, the volume flow rate of the output fluid of the pump is directly proportional to the stroke length and reciprocating frequency, namely pump speed.

On the measuring medium and work pressure, by adjusting the stroke length and frequency can achieve the regulation of reciprocating double output flow metering pump. The imported reciprocating stroke length and frequency can be used as variable, but generally in the engineering application of stroke length as coarse variable, frequency tuning variables: reciprocating stroke adjustment the length to a certain value, then change its frequency to achieve fine adjustment, increase the metering pump adjustment flexibility. In relatively simple applications, can also manually set the stroke length and stroke frequency will only as adjustment variables, thus simplifying the system configuration.