Ultrasonic Flow meter OPTISONIC 4400 HP

The OPTISONIC 4400 HP is a 2-path ultrasonic flowmeter for liquids that are processed under extreme conditions with high operating pressure up to 490 bar / 7107 psi. This makes the flowmeter the perfect choice for accurate flow measurement of condensate and high pressure feed water or spray water measurement at power plants as well as well water injection in upstream oil production.

Bi-directional flow measurement over a wide dynamic range

Meets the requirements of the oil and gas industry: NACE MR 175/103 and ISO 15156 conformity

Independent of flow profile (Reynolds number) and product variations

Resistant to corrosive and abrasive products

Transducer replacement under process conditions

Extensive sensor and process diagnostics (incl. NE 107)

Optional heating jacket

Welded-end connections on request

No periodical maintenance or recalibration needed






Applications with high process pressures

Various conductive and non-conductive liquids


Oil and gas industry


High pressure upstream applications (e.g. well injection)

Oil transportation


Conventional and nuclear power industry


Heat transfer circuits

Boiler feed water

HP feed water in combined power plants



Measuring tube             Austenitic stainless steel                              (1.4404/316L)



Process Connection


Flange connections EN (1092-1): DN25…1000

ASME (B 16.5): 1…40″


Pressure rating

(ASME B 16.5)


Cl 4500#


Other connections


Welded connections (on request)