LGMZ diaphragm type pulse damper

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Product overview

Pulse damper, also known as pulsation damper, pulsation buffer, is a common component to eliminate pipeline pulsation, is a metering pump must be equipped with accessories. The pulsation damper can smooth the line pulsation and system water hammer caused by positive displacement pumps such as metering pumps and diaphragm pumps. The gas is isolated from the liquid in the pipeline by a corrosion-resistant diaphragm, and the pipeline pulsation is smoothed by changes in the gas chamber volume.

Shell material :PVC, PP, PVDF, SUS304, SUS316L Diaphragm material :PTFE composite, FPM(fluorine rubber), EPDM(terene), NBR(butyl eye)

◎ Functional Features

Reduce the damage to the system

Reduce the peak velocity fluctuation.

Protect pipes, valves and joints from pressure fluctuations,

Create a good working environment for the metering pump and improve the working performance of the pump.

Allows the system to use smaller pipe diameters, reducing costs.

Combined with the back pressure valve, the pressure fluctuation of the pipeline can be close to zero.

Reduce the energy consumption of the system.

◎ Volume selection of diaphragm damper

Pump flow per hour 60 The number of strokes per minute of the pump X15= the minimum volume actually required by the Yang Ni That is, the metering capacity (ml) of each stroke of the metering pump (or diaphragm pump) is multiplied by 15 to obtain the minimum volume of the damper required to reduce 90% of the pulse Note :(This calculation method applies to the single-head pulse type pump body, multi-head pump is discussed separately.

◎ Working principle

According to Boyle's law PV,=P,V, the volume of the gas is inversely proportional to the pressure of the gas, and the pipe pulsation is smoothed by changing the volume of the gas. For the system with sinusoidal flow rate, the peak of the wave: the volume of the gas chamber becomes smaller, and the pulse damper absorbs the excess flow liquid; Trough: the volume of the gas chamber becomes larger, releasing the stored liquid, thus achieving the effect of smooth pulsation.

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