Overview
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.
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
- 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
- HART®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
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Specifications
Depending on selected device configuration
General information
Product type Flowmeter Product family name OPTIBAR Product positioning For applications with liquids, gases and steam to high-temperature applications with dust-laden gases Measurement principle Differential pressure Measured media Liquids, Gases, Steam Nominal diameter / size DN50...2500 / 2…100” (inne na życzenie) Operating conditions
Process pressure max. 0...320 bar / 4641.2 psi (gases, liquids)
max. 180 bar / 2610.7 psi (steam)Process temperature -200…+1150°C/
-328…+2102°FMaterials
Measuring tube Austenitic alloy (2.4602/Alloy 22), Austenitic stainless steel (1.4571/316Ti), Nickel-chrome-molybdenum-tungsten alloy (2.4819/Alloy C276), Chrome molybdenum steel alloy (1.5415/16Mo3) Process connections
Flange connections EN (1092-1): DN50…2000 (larger on request)
ASME (B 16.5): 2…80'' (larger on request)Weld-in connections Weld-in fitting Approvals/Standards
Certificates/Approvals Others Oxygen, ISO/TR 11583 Certificates/Approvals Ex ATEX, IECEx, NEPSI Certificates/Approvals Safety SIL 2/3 Design standards ISO 5167 NAMUR compliance NE 107, NE 21, NE 43, NE 53 Communication
Analogue outputs 4…20 mA Digital outputs FOUNDATION™ fieldbus, HART®, Profibus-PA, Bluetooth
US 7118 
GB 6829 
AU 6413 
CA 6314 
IE 4111 
NZ 2530 
VN 1300 
CN 916 
