Ultrasonic Flow meter ALTOSONIC 5

The ALTOSONIC 5 is a multi-path ultrasonic flowmeter for custody transfer (CT) measurement in upstream and midstream applications of the oil and gas industry. The high accuracy meter is suitable for measuring all types of crudes in transportation, processing, loading or offloading applications as well as all types of refined products or chemicals. Due to its unique paths configuration, the ALTOSONIC 5 is suitable for all flow regimes without Reynolds number limitations. In addition, a vertically mounted transducer pair detects gas on top of the liquid.

Bi-directional flow measurement with the widest certified turndown ratio (75:1)

Unique path configuration plus one vertical path for diagnostics

Independent of flow profile (Reynolds number) and product variations

Certified viscosity range up to 1500 cSt

Reduced installation length: down to 5D with flow conditioner

Transducer replacement under process conditions

Extensive diagnostic features: recognition and visualisation of complete flow profile

Full pipe guarantee: integrated entrained gas detection

Significantly easier small volume proving

Easy integration with SUMMIT 8800 or any other approved flow computer

No moving parts, no wear, no pressure loss





Master metering

Custody transfer (fiscal metering) of multiple products

Liquid hydrocarbons


Oil and gas industry

Offshore (platform) and onshore oil production

FPSO (Floating Production Storage and Offloading) units

Allocation metering

Loading and offloading terminals (crudes, refined products and LNG)

Pipeline metering (crude oil, multi-product)

Product identification

All types of refined products, cryogenic media (LNG)


Chemical and other process industries

Batching of liquid hydrocarbons and biofuels

Truck and ship loading


Conventional power industry

Cooling water


Boiler feed water



Measuring tube  

Austenitic stainless steel (1.4404/316L), Carbon steel (A106 Gr.B), Carbon steel (A333 Gr. 6), Carbon steel (A350 Gr. LF2)



Process Connection


Flange connections EN (1092-1): DN100…600

ASME (B 16.5): 4…24″



Pressure rating

(ASME B 16.5)



Cl 600#