Dosch Averaging Pitot Tube – High-Accuracy Flow Measurement for Gas, Steam & Liquid

Dosch Messapparate GmbH is a German manufacturer specializing in differential pressure, flow, pressure and industrial measurement technology. Founded in 1933, Dosch has more than 80 years of engineering experience and develops measurement solutions according to customer requirements and international standards. The company is also involved in the DIN EN ISO 5167 standards committee for differential-pressure flow measurement.

Dosch Averaging Pitot Tube – Working Principle & Applications

The Dosch Averaging Pitot Tube is a primary flow-measuring element designed for gas, steam and liquid flow measurement. The probe is inserted directly into the pipeline and uses multiple pressure tapping holes distributed across the pipe cross-section. These openings collect upstream total pressure and downstream pressure; the resulting differential pressure is transmitted to a differential-pressure instrument to calculate flow rate.

A major advantage is the very low permanent pressure loss compared with conventional differential-pressure devices. The distributed pressure taps also provide an averaged pressure signal, reducing the dependence on a perfectly uniform velocity profile and potentially reducing the required straight pipe length.

Typical applications include compressed air, natural gas, process gas, steam, combustion air, ventilation systems, industrial exhaust, water and other process fluids. Dosch measurement technology is used across oil & gas, energy, water supply, food processing, environmental technology and industrial plants.

Dosch Pitot & Flow Measurement Products

The supplied Averaging Pitot Tube webpage does not publish individual model numbers for the averaging-pitot probe; therefore, the table below lists the relevant Dosch product families without inventing model codes.

Dosch Technology – Precision, Safety & Durability

Dosch emphasizes quality, customized engineering and long-term reliability. The company manufactures pressure-bearing components and holds qualifications covering pressure equipment and welding, including PED-related manufacturing capabilities and ATEX-certified products in its wider portfolio.

For the Averaging Pitot Tube specifically, Dosch states a measurement uncertainty of approximately 1% of the measured signal. Differential-pressure connections can be supplied in threaded, smooth, welded or flange-plate configurations, allowing the probe to be adapted to different industrial installation requirements.

Comparison of Dosch Flow Measurement Technologies

LTĐ – Dosch Measurement Technology in Vietnam

LTĐ – Authorized Distributor of Dosch in Vietnam provides technical consultation and support for industrial flow-measurement projects.

We provide: system design – product selection – installation – configuration – calibration – commissioning – warranty – fast repair and troubleshooting.

For specialized applications involving large-diameter pipelines, compressed air, gas, steam, combustion air or challenging industrial media, LTĐ can support customers in selecting the appropriate Dosch flow-measurement technology according to pipeline size, process conditions, pressure, temperature and required accuracy.

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