Averaging Pitot Tube Flowmeter

The averaging pitot tube flowmeter requires the least installation effort of all DP flowmeters. It is cost-effective and suitable for a variety of applications. Its low remaining pressure loss and bi-directional flow capabilities make it the preferred instrument for water, sea water, condensate, cooling water, crude oil, saturated and superheated steam, nitrogen, combustion gases, ventilation air and many other liquids and gases. It can also be used for dust-laden gases at high-temperatures. The KROHNE averaging pitot tube flowmeter covers big diameters, round and rectangular pipes and ducts. It requires only short straight inlet/outlet pipe sections (7D/3D). Due to the low flow profile constriction it generates only a minimal residual pressure loss.

KROHNE offers the complete DP flow solution with averaging pitot tube, valve, manifold and DP transmitter. It comes pre-assembled, ready for operation and only needs a single flange or weld-on fitting to be installed in a process line. This reduces engineering and installation efforts as well as eliminates the need for routing of impulse lines, valves and supports. Retrofit and retractable as well as pressure- and temperature-compensated versions with associated flow computing are also available. In addition, a complete automatic purge system for dust-laden gas applications can be supplied by KROHNE from a single source.

The sophisticated OPTIBAR DP 7060 and OPTIBAR DP 3050 DP transmitters are the perfect companion for this DP flowmeter solution. They are 3D linearised and ensure advanced performance even at high static pressures. The OPTIBAR DP series has an outstanding long-term stability and a low total cost of ownership with a reduced need for field calibrations.

Features & Options

• Fast and easy installation without additional engineering, impulse lines and supports – allowing perfect retrofit capabilities
• Averaging flow profile for shortest in- and outlet runs
• Symmetrical design allows bidirectional flow measurement
• Low TCO due to reduced engineering, commissioning and installation costs
• Reduced need for recalibration in the field through advanced 3-D linearised OPTIBAR DP transmitters
• Complete flowmeter solution with averaging pitot tube, manifold, DP transmitter from a single source
• HARTsup>®7, Foundation fieldbus and Profibus-PA communication options
• SIL 2/3 certified versions
• Ex ia, Ex d approvals
• Redundant versions, pressure and temperature compensated versions available

Typical applications

General

• Process flows of water, demiwater, chemicals, gases and steam
• Retrofit flowmeter installations

Chemical industry, petrochemical industry

• Vapors in the chemical and petrochemical industry

Power generation, utilities

• Utilities and steam, energy monitoring
• Cooling water lines
• Thermal combustion processes, primary and secondary air
• Stack flow
• Dedusting and ventilation
• Compressed air
• Biogas