The Type "S" (Stauscheibe) or Reverse Pitot-Static probe measures
velocity, weight flow rate, and related volumetric quantities
of a moving fluid.
The probe consists of two stainless steel tubes with impact
holes oriented at 180¡Æ angles to one another (see Fig. 1).
One hole faces upstream for the measurement of total pressure
(PT); the other is aligned in a downstream direction for static
pressure (PS) measurement.
The difference between these two pressures (PT - PS) approximately
equals 150% of the velocity pressure (PV) of the fluid. PV approximation
must be corrected to true value through proper calibration to
the particular flow situation.
United Sensor "S" Probes are designed for easy entry into small
holes in stack or flow passage walls, and due to their relatively
large impact (sensing) holes, are especially effective in the
presence of high concentrations of clogging particulate matter.
Large pressure tube diameters permit easy cleaning.
A wide selection of variations permit custom designing of the
"S" Probe to meet exact specifications. These include special
constructions for high operating temperature and pressures;
longer or shorter probe lengths; larger or smaller diameter
tubing; and built-in thermocouples.
Probes are Available
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