Pitot Tubes
Accurate flow velocity measurement with minimal pressure loss - Pitot tubes designed for compact installations and high repeatability.
Endress+Hauser offers Pitot tubes for measuring fluid velocity via static and dynamic pressure, based on Bernoulli’s principle. They capture stagnation and static pressure to calculate flow speed. Averaging Pitot tubes enhance accuracy by sampling across the pipe diameter. They are used as compact, low-maintenance options for higher-pressure systems, and are ideal for retrofitting and reliability. Find out more about our options for Pitot tubes below.
Benefits
Threaded Pitot Tubes
• Suitable for a variety of applications where reliability is crucial with a wide range of suitable pipe sizes <2”
• Easy to install and retrofit into systems with less space required
• Lower upfront costs due to simpler fittingsFlanged Pitot Tubes
• Suitable for a variety of applications where reliability is crucial with a wide range of suitable pipe sizes >2”
• Easy to maintain and remove
• Higher initial costs but better long-term durabilityInline Pitot Tubes
• Minimal permanent pressure loss
• Suitable for high pressure and temperature applications and large diameter ducts and pipelines
• Versatile installation options allow for easy retrofitting and installation to piping
Threaded & Flanged Pitot Tubes
Threaded and flanged Pitot tubes are flow measurement devices used to determine fluid velocity by comparing stagnation and static pressure, based on Bernoulli’s principle. Threaded Pitot tubes are typically used for smaller pipe sizes and compact installation, offering easy retrofitting with threaded connections. Flanged Pitot tubes, on the other hand, are designed for larger pipes and more demanding conditions, providing robust sealing and mechanical strength through flanged connections.
Inline Pitot Tubes
An inline Pitot tube is a flow device that measures fluid velocity by comparing stagnation and static pressure inside a pipeline, using Bernoulli’s principle. It’s often used in large pipes or ducts, offers low pressure loss, and is cost-effective for retrofits. Pitot tubes provide cost-effective flow measurement of clean fluids circulating within an enclosed conduit or ducting.
Tapping Options
There are three different types of tapping options available for Pitot tubes: integral 3-valve manifold, integral 5-valve manifold and impulse connections.
Integral 3-Valve Manifold - A 3-valve manifold is a compact assembly mounted directly to a differential pressure transmitter connected to Pitot tubes. It consists of two block valves and one equalising valve, allowing the operator to isolate the transmitter from the process and equalise pressure between the high-pressure and low-pressure sides for zeroing or calibration.
Integral 5-Valve Manifold - A 5-valve manifold includes the same two block valves and one equalising valve as the 3-valve design but adds two vent/drain valves. These extra valves allow safe venting, draining, and calibration of the transmitter while the process remains in service. This configuration is ideal for applications requiring frequent calibration or purging.
Impulse Connections - Impulse connections are small-bore tubing or piping arrangements that transmit the high-pressure and low-pressure signals from the Pitot tube to a differential pressure transmitter. They typically include isolation valves, manifolds, and sometimes condensate pots or purging systems to maintain accuracy and prevent blockages.
Find out more
Downloads
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Flow Specification Sheet - Pitot Tube.pdf
File size:
130.5 KB
File name:
Flow Specification Sheet pitot tube.pdf
