What is a Shock Absorber
of Pressure Gauge

The pressure shock absorber is a safety element used to prevent pressure surges in the pressure gauge, either due to overpressure or sudden pressure fluctuations.

The meter damper can be adjusted and tuned to adjust the water hammer. The typical adjustable damper is a piston damper with a needle valve added. The needle valve further restricts the flow before it enters the gate.

The piston damper may also be a ball check valve, its principle of operation is passive until activated by a sudden change in pressure. Some adjustable dampers also come with a sealing cover, which allows the meter to be disassembled for repair or maintenance.

Characteristics and functions of a
Pressure Gauge Damper

The typical adjustable damper is a piston damper with a needle valve added. The needle valve further restricts the flow before entering the damper.

The piston damper can also be a non-return ball valve, its principle of operation is the same as the passive type, it is not activated until the pressure changes abruptly.

Some adjustable dampers also come with a sealing cover, which allows the meter to be disassembled for repair or maintenance.

What types of Pressure Gauge Shock Absorbers are there?

Brass shock absorber

Brass buffers are suitable for neutral and non-corrosive media.
They are resistant to water, (compressed) air, oil and many other media.
However, brass should not be used with salt water or sea water, distilled water, acids and chlorides.

Stainless steel shock absorber

In addition to hydrochloric acid, chloride, bromine and household bleach, the advantage of stainless steel buffers is that they are chemically resistant to almost any medium.
It has high abrasion resistance, temperature resistance and pressure resistance.

At Zaes, as a manufacturer of pressure gauge dampers for more than 60 years, we guarantee a quality product for your installations.

Shock absorber operation
of Pressure Gauge

The buffer of the pressure gauge coincides with the velocity at which the fluid or gas reaches the measuring point.

The use of a buffer in a gauge application will not change the process pressure, will reduce the pulsation of the pipe, thus improving the accuracy of the gauge readings and extending the life of specific gauges.

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