Gauge protectors and gauge snubbers by AS-Schneider provide a reliable and economical solution to protect measuring instruments from the effects of pressure fluctuations.
Gauge protectors are designed for steadily increasing continuous pressure such as in the thermal expansion of the medium in the pipeline. A shut-off valve, which works against a spring, is located in the interior. If the pressure in the line is less than the spring force, the valve opens. If the pressure force exceeds the spring force, a piston moves toward the valve seat and closes off access to the pressure gauge. Measuring Instruments are thus protected from damage. If the pressure drops below the set limit, the valve opens again.
AS-Schneider gauge snubbers reduce the pressure spikes that can occur from the rapid closing of a valve. Pressure surges that occur at the gauge snubber inlet are reduced via an adjustable gap between the valve stem and the body seat. Measuring instruments can be read more accurately in this way because pressure fluctuations are smoothed out. Gauge snubbers can also be used as a timing element in a controller. Its body is usually made of brass but other versions in different materials using bar material are also available.