Differential Pressure Indicator

Differential pressure indicator, designed to control pollution filtering elements of gas pipelines.

The indicator has not normalized metrological characteristics measuring means is not, but allows to control the degree of clogging of the filter element. Rules on metrology PR 50.2.019 allow the use of indicators for monitoring the pressure drop across the filter. IPD scale is divided into two segments: green and red. Finding the arrows in the green segment indicates the permissible differential across the filter element 5 kPa pressure indicator SDI - 16 - 5 and 10 kPa for SDI - 16 - 10 indicator. Finding a red arrow indicates the segment excess differential pressure is 5 psi for SDI - 16 - 5 indicator and indicator 10 kPa for SDI - 16 - 10 and need replacing or cleaning the filter element