Prandtl pitot tube

Application

For flow measurement in low pressure applications, e.g. Ventilation systems, low-pressure gas lines, in special cases also for liquid measurements.

Mounting lengths

Docks and cylinder probes can be supplied up to a length of up to 3000 mm. We recommend that the tubes be supported by the customer on a length of 1500 mm. For lengths and item numbers see table below. The nominal length NL should be at least half the pipe diameter.

Execution

Stammpipe to Prandtl with bow-shaped angled head, probe tip in hemispherical shape; Probe coefficient according to Prof. Dr. Ludwig Prandtl = 1 cylinder probe according to VDEH acc. Guideline SEB 384 700 in straight version (therefore very easy to install) Probe coefficient = 1.7.

Stub tubes and cylinder probes are produced in different diameters and in the normal case from Edestehl. Connections Hose fittings in the diameter of the tailpipes.

Key Features:

• Safe, proven, physical measuring principle,
• Independent application,
• High accuracies in the determination of pressure, velocity and flow quantities,
• Rigid parts, no wear, insensitive,
• Nickel-plated, non-rusting metals.

Model variants:

• Pitot tube for laboratory applications; Material nickel plated brass
• Pitot tube St 309: Diameter 3 mm / Pit opening 1 mm / NL = 250 mm / Pitot tubes and cylinder probes; Material: stainless steel
• Pitot tube St 306: Diameter 6 mm / Pit opening 2 mm / NL = 250 to 1000 mm
• Pitot tube St 310: Diameter 10 mm / Pit opening 3 mm / NL = 250 to 2500 mm
• Pitot tube St 371: Diameter 12 mm / Pit opening 4 mm / NL = 250 to 2500 mm
• Pitot tube St 341: Diameter 15 mm / Pit opening 6 mm / NL = 250 to 2500 mm
• Cylinder probe VDEH St 341Z: diameter 15 mm / stowage opening 6 mm / NL = 250 to 2500 mm