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Why do duplex pressure gauges have buffer tubes
 Aug 24, 2020|View:521

Connecting the duplex pressure gauge to the pipe is a pressure gauge elbow (also called a pressure gauge elbow), the official name is a buffer tube. Used to connect the pressure gauge and pressure gauge measuring equipment or pipe fittings, used to buffer the instantaneous impact of the measured medium on the pressure gauge spring tube, which can well protect the mechanical structure of the digital display or pressure sensor from damage and extend the service life.

There are two types of pressure gauge elbows: one is a round elbow, and the other is a U-shaped elbow.

Why do duplex pressure gauges have buffer tubes

The purpose of adding a pressure gauge is to protect the internal transmission mechanism of theduplex pressure gauge from moderate temperature and moderate corrosive damage. Generally, if the medium is corrosive to a certain extent, a pressure gauge elbow must be installed. When the medium temperature is higher than 60°C, a pressure gauge elbow must be installed. If the pressure gauge is installed on a clean drinking water system, there is no need to install it.

It also has the function of reducing vibration and impact, and has a certain heat dissipation effect on high-temperature media to protect the pressure gauge and reduce the temperature influence error of the pressure gauge. The damping screw at the orifice of some pressure gauge joints has a throttling and cushioning effect by reducing the flow area, which is mainly used for medium pressure pulses.


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