Krohne

ALTOSONIC V12

ALTOSONIC V12: ultrasonic flowmeter certified for custody transfer gas measurement to 450 bar and 175°C.

The ALTOSONIC V12 is a precision ultrasonic flowmeter engineered for high-accuracy custody transfer applications across natural gas, hydrogen, and industrial gases. With operating ranges up to 450 bar and 175°C, it delivers reliable volumetric measurement in demanding pipeline environments. Available in Standard and Essential variants with EN and ASME flange connections (DN100–750 / 4–30"), the V12 combines AGA, ISO 17089, and OIML R137 certification with robust construction in austenitic, duplex, or carbon steel. Multiple output options—4–20 mA analog, pulse/frequency signals, and Modbus RTU/ASCII digital—enable seamless integration into SCADA and automated systems.

Specifications

Product type: Flowmeter
Product family name: ALTOSONIC
Product positioning: For custody transfer (CT) flow measurement of gases
Product variants: ALTOSONIC V12 Standard ALTOSONIC V12 Essential
Measured media: Gases
Process pressure: max. 450 bar/ 6525 psi
Process temperature: -40...+175°C/ -40…+347°F
Measuring tube: Austenitic stainless steel (1.4404/316L), Duplex stainless steel (1.4462/318), Carbon steel (A350 Gr. LF2)
Flange connections: EN (1092-1): DN100…750 ASME (B 16.5): 4…30" Other diameters on request
Certificates/Approvals Custody transfer (CT): AGA, ISO 17089, MI-002, OIML R137
Certificates/Approvals Ex: ATEX, IECEx
Certificates/Approvals Others: Pressure Equipment Directive (PED)
Analogue outputs: 4…20 mA
Discrete outputs: Pulse, Frequency, Status
Digital outputs: Modbus RTU, Modbus ASCII