Measuring tube type — replacement of installed equipment

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V-shaped sensor type — ultra-compact

V-shaped design — one of the most common and proven Coriolis flow meter sensor types. Two parallel measuring tubes bent in the shape of the letter "V" provide high sensitivity in a compact footprint. Recommended for most industrial tasks.

Technical specifications Request a quote

Direct replacement Ultra-compact up to 10 MPa

Overview

V-shaped sensor type

The V-shaped design is one of the most common and proven Coriolis flow meter sensor types. Two measuring tubes bent in the shape of the letter "V" oscillate in antiphase, generating a Coriolis force proportional to the mass flow rate. This configuration provides an optimal balance of sensitivity, compactness and reliability.

DN08 / DN15 / DN25 / DN40 / DN50

Nominal diameter range

100:1

Turndown ratio (standard)

DN08+

Flanged / threaded / sanitary

Advantages

Why the V-shaped type is the choice for compact installations

The V-shaped design is a compact and reliable solution for those who value compatibility with existing infrastructure and minimal reinstallation costs when replacing obsolete equipment.

Ultra-compact design

Minimal dimensions and face-to-face length. No straight pipe runs required upstream and downstream of the sensor. Ideal for skid modules, control cabinets and mobile units.

Direct replacement

Removal of the old and installation of the new flow meter without modifying the pipeline, support structures or piping. Full compatibility with the installed equipment.

High-pressure operation

Working pressure up to 10 MPa. Internal and external UNF/NPT threads, flanged connections. Rupture disc — optional. Fully welded V-shaped tubes in 316L stainless steel — resistant to vibration and water hammer.

Multi-variable measurements

Simultaneous measurement of mass flow rate (±0.1% for liquids, ±0.5% for gases), density (±0.005 g/cm³), temperature and volumetric flow rate. One instrument replaces several.

State Register and import substitution

A certified domestic equivalent (State Register No. 98506-26). Replacement of imported equipment from leading global brands and equivalents without loss of accuracy.

Minimal downtime

Replacement within one shift without welding. Significantly lowers the barrier to trial operation and pilot deployments at operating plants.

Sensor types

Other measuring tube types

Mass-EXPERT offers several measuring tube configurations, each optimized for specific operating conditions

U V K W L Δ (Delta)

V-shaped type — an ultra-compact solution for replacing installed equipment. Other types are optimized for specific tasks (ultra-high pressure, cryogenics, aggressive media, etc.).

Examples

V-shaped Mass-EXPERT sensors

Appearance of Mass-EXPERT flow meters with V-shaped measuring tubes of various sizes

Mass-EXPERT V-shaped sensor — ultra-compact body

V-shaped measuring tubes — sensor design

Mass-EXPERT V-shaped sensor

Technical specifications

Parameters of V-shaped sensors

Technical specifications of Mass-EXPERT flow meters with V-shaped measuring tubes

Parameter	Value
Measuring tube type	V — V-shaped (ultra-compact)
Nominal diameter (DN)	08, 15, 25, 40, 50
Turndown ratio (standard)	100:1
Number of tubes	2 (two V-shaped)
Configuration	Two V-shaped tubes oscillating in antiphase, ultra-compact housing
Connection types	Flanged, internal/external threads (UNF, NPT), Tri-Clamp
Minimum DN for flanged connections	DN08 and above
Measuring tube material	Stainless steel AISI 316L (1.4435)
Operating oscillation frequency	High-frequency (compact design)
Working medium temperature	from −50 to +150 °C (optional up to +350 °C)
Maximum working pressure	up to 10 MPa (DN08, DN40, DN50); up to 8 MPa (DN15, DN25)
Output signals	4–20 mA (HART), RS-485 (Modbus RTU), CAN, pulse, frequency
Explosion protection	Ex db ib IIC T6 Gb; Ex db ia IIC T6 Gb; Ex ia tb IIIC T80 °C Db

Type comparison

Sensor configuration comparison

V-shaped type — a compact solution for direct replacement of installed equipment

Parameter	U	V	K	W	L	Δ (Delta)
Nominal diameter (DN)	DN03–DN250	DN08–DN50	DN02–DN25	DN08–DN100	DN08–DN50	DN01/DN02/DN25
Unique feature	• versatility: most media and industries • cryogenic and high-pressure versions	• face-to-face replacement without rework	• ultra-high pressure (PK series) • H₂-embrittlement-resistant materials	• self-draining + CIP/SIP • large line sizes (up to DN100)	• minimal hydraulic resistance • abrasives, slurries and viscous products	• micro-dosing from fractions of kg/h • exceptional mechanical stability
Straight pipe runs required	No	No	No	No	No	No
Low flow rates and micro-dosing	from DN03	from DN08	from DN02	from DN08	from DN08	fractions of kg/h (from DN01)
Sensitivity	High	High	High	Medium	Medium	Very high
Compactness	Medium	High	Medium	High	Medium	Medium
Aggressive media	Good	Good	Good	Good	Excellent	Good
Drainage and dead zones	Standard	Standard	Standard	Full (self-draining)	Full (straight tubes)	Standard
Vibration and pulsation resistance	High	High	High	High	Standard	Maximum
Hygienic cleaning (CIP/SIP)	Yes	Yes	Yes	Yes	Yes	Yes
Sanitary connections	Yes	Yes	Yes	Yes	Yes	Yes
Recommendation	Universal solution for most tasks	Direct replacement of installed equipment	High and ultra-high pressure (H₂, He, N₂)	Self-draining design	Viscous, abrasive, aggressive and hygienic media	Micro-flow (DN01/DN02), also DN25

Applications

Where it is used

Biotechnology & Life Sciences

Dosing & blending systems

Cryogenic technologies

LPG (propane-butane)

LNG

Custody transfer

Laboratories & test benches

Recommended applications

The V-shaped sensor mounts in place of installed Endress+Hauser meters without adapters — the face-to-face length and process connections match. Included in the State Register (No. 98506-26): import substitution with service and verification in Russia.

Oil & gas Chemicals Pharmaceuticals Food & beverage Biotechnology & Life Sciences Dosing & blending Power & utilities Cryogenic technologies LPG / LNG Custody transfer Laboratories Petrochemicals

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