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Vortex Flow Meter - lightweight flow for monitoring cleansing, cooling water or spa water

Our vortex flow meters the LIQUI-VIEW deliver accurate, maintenance‑free performance for liquids, making them ideal for monitoring (cool) water flow.
 
The LIQUI‑VIEW Base series operates on the Kármán vortex principle and has no moving parts, ensuring long‑life reliability and resistance to hard‑water deposits. With IP65 protection, flow ranges from 0.5 to 150 l/min up to 12 bar, and your choice of 4–20 mA (A‑model) or frequency output (P‑model), they integrate seamlessly into any industrial setup.

🕒  Fast delivery from stock, shipment in 2 business days
🇪🇺  Made in the EU
💬 Online support available
💳  Secure payment via Credit Card, PayPal or Bank transfer
✅ Competitive prices

LVB-06-P Liquid flow meter [0.5 .. 10 l/min]
LVB-06-P Liquid flow meter [0.5 .. 10 l/min]
  • 0.5 .. 10 l/min
  • Frequency output (unfiltered)
  • Low pressure drop
$230.10
Fully stocked
Dispatch will be within 2 days
LVB-06-A Liquid flow meter [0.5 .. 10 l/min]
LVB-06-A Liquid flow meter [0.5 .. 10 l/min]
  • 0.5 .. 10 l/min
  • Analog output
  • Low pressure drop
$241.90
Fully stocked
Dispatch will be within 2 days
LVB-08-P Liquid flow meter [0.9 .. 15 l/min]
LVB-08-P Liquid flow meter [0.9 .. 15 l/min]
  • 0.9 .. 15 l/min
  • Frequency output (unfiltered)
  • Low pressure drop
$230.10
Fully stocked
Dispatch will be within 2 days
LVB-08-A Liquid flow meter [0.9 .. 15 l/min]
LVB-08-A Liquid flow meter [0.9 .. 15 l/min]
  • 0.9 .. 15 l/min
  • Analog output
  • Low pressure drop
$241.90
Fully stocked
Dispatch will be within 2 days
LVB-10-P Liquid flow meter [2.0 .. 40 l/min]
LVB-10-P Liquid flow meter [2.0 .. 40 l/min]
  • 2.0 .. 40 l/min
  • Frequency output (unfiltered)
  • Low pressure drop
$230.10
Fully stocked
Dispatch will be within 2 days
LVB-10-A Liquid flow meter [2.0 .. 40 l/min]
LVB-10-A Liquid flow meter [2.0 .. 40 l/min]
  • 2.0 .. 40 l/min
  • Analog output
  • Low pressure drop
$241.90
Fully stocked
Dispatch will be within 2 days
LVB-15-P Liquid flow meter [3.5 .. 50 l/min]
LVB-15-P Liquid flow meter [3.5 .. 50 l/min]
  • 3.5 .. 50 l/min
  • Frequency output (unfiltered)
  • Low pressure drop
$230.10
Temporarily unavailable | Restocking in progress
Place your order now, and we'll ship it to you as soon as it's back in stock
LVB-15-A Liquid flow meter [3.5 .. 50 l/min]
LVB-15-A Liquid flow meter [3.5 .. 50 l/min]
  • 3.5 .. 50 l/min
  • Analog output
  • Low pressure drop
$241.90
Fully stocked
Dispatch will be within 2 days
LVB-20-P Liquid flow meter [5.0 .. 85 l/min]
LVB-20-P Liquid flow meter [5.0 .. 85 l/min]
  • 5.0 .. 85 l/min
  • Frequency output (unfiltered)
  • Low pressure drop
$230.10
Fully stocked
Dispatch will be within 2 days
LVB-20-A Liquid flow meter [5.0 .. 85 l/min]
LVB-20-A Liquid flow meter [5.0 .. 85 l/min]
  • 5.0 .. 85 l/min
  • Analog output
  • Low pressure drop
$241.90
Fully stocked
Dispatch will be within 2 days
LVB-25-P Liquid flow meter [9.0 .. 150 l/min]
LVB-25-P Liquid flow meter [9.0 .. 150 l/min]
  • 9.0 .. 150 l/min
  • Frequency output (unfiltered)
  • Low pressure drop
$230.10
Fully stocked
Dispatch will be within 2 days
LVB-25-A Liquid flow meter [9.0 .. 150 l/min]
LVB-25-A Liquid flow meter [9.0 .. 150 l/min]
  • 9.0 .. 150 l/min
  • Analog output
  • Low pressure drop
$241.90
Fully stocked
Dispatch will be within 2 days

Flow Ranges

Frequency Output

Analog (4-20 mA) Output

0.5 .. 10 l/minLVB-06-PLVB-06-A
0.9 .. 15 l/minLVB-08-PLVB-08-A
2.0 .. 40 l/minLVB-10-PLVB-10-A
3.5 .. 50 l/minLVB-15-PLVB-15-A
5.0 .. 85 l/minLVB-20-PLVB-20-A
9.0 .. 150 l/minLVB-25-PLVB-25-A

Vortex Flow Meter: The Complete Guide to Efficient Process Control

In today’s process industry, downtime is not an option and understanding consumption figures is crucial for cost control. As a process engineer, maintenance manager or purchaser, you face the daily challenge of selecting reliable measuring instruments that are not only accurate but also quickly available. You want quality, speed and clarity. That’s exactly why you’ve come to the right place at Massflow-online.com.
Whether you’re monitoring cooling water circuits,  or water like liquids consumption, a vortex flow meter is, in many cases, the robust workhorse you’re looking for. While traditional suppliers excel in complex engineering projects with long delivery times, we focus on standardized top-quality instruments that are available immediately. We combine high-end instruments with the convenience of a webshop, instant access to datasheets and fast delivery from stock. 

What Is a Vortex Flow Meter and How Does the Physics Work?

Vortex Flow meter Principle To make the right choice, it’s essential to understand the underlying technology. Vortex flow meters are velocity meters that operate based on the von Kármán effect. This physical phenomenon, discovered by physicist Theodore von Kármán, describes the vortex pattern created when a liquid flows past a bluff body.
Inside the flow tube of the meter, a central obstruction — the “bluff body” or “shedder bar” — is placed. When the medium (water) flows past this obstruction, vortices form alternately on the left and right sides. These alternating vortices create localized pressure differences.


The Science Behind the Measurement

The frequency at which these vortices are shed is directly proportional to the flow velocity of the medium. This is expressed in the equation:
f = St · v / d
f: Vortex shedding frequency (Hz)
St: Strouhal number (dimensionless constant depending on body shape)
v: Flow velocity (m/s)
d: Width of the bluff body (m)
A sensor (often piezoelectric) detects these pressure pulses, and the electronics translate this frequency signal into a highly accurate volumetric flow. The beauty of this principle is that it is purely physics-driven — no moving parts that can wear out. This makes vortex flow meters one of the most durable and low-maintenance technologies on the market.


Why Choose Vortex? A Comparison with Alternatives

Why choose this technology over a turbine, differential pressure (DP) meter or electromagnetic meter? 
The strength lies in its universal applicability. Below, we compare vortex flow meters with common alternatives:

Vortex vs Turbine Flow Meters

Turbine meters contain a rotor that spins with the flow. Although accurate, the bearings wear out — especially when the medium contains particulates. A vortex flow meter has zero moving parts, resulting in lower OPEX and a significantly longer MTBF.

Vortex vs Electromagnetic (Mag meter)

Magmeters are fantastic for conductive liquids like water or acids. But they fail with non-conductive media such as demineralized water or natural oils. 
A vortex flow meter measures all of these without any conductivity requirement — making it the more versatile choice for factories with diverse media.

Vortex vs Differential Pressure

DP meters cause considerable pressure loss, leading to higher energy consumption. Vortex meters have negligible pressure loss and offer a much wider measurement range (turndown ratio up to 1:30 vs. 1:4 or 1:5 for DP).

Critical Success Factors: When Does It NOT Work?

We believe in honest advice. Vortex meters are powerful and versatile — but not magical. There are two main limitations:

Reynolds Number

Vortex formation requires turbulent flow. At low velocity (Re < 4000), stable vortices do not form and the meter reads zero. Therefore, they are unsuitable for very viscous fluids (heavy oils, syrups) or extremely low flows. The instrument is calibrated on water, other viscocitys with deviate the output.

Vibration

Because the sensor measures pressure pulses, heavy pipeline vibrations at certain frequencies can interfere. 


Industrial Applications: Where Do They Excel?

Our customers in OEM, machine building and process industry use vortex flow meters for a wide range of tasks. Their versatility enables plant-wide standardization.

VAV Systems (Variable Air Volume)

Vortex flow meters are used in VAV systems to accurately measure low cooling and heating water flows at variable load conditions. A vortex flow meter improves energy efficiency and temperature control while offering a competitive vortex flow meter price for HVAC applications.

In-Rack CDU (Coolant Distribution Units)

In in-rack CDUs, vortex flow meters provide precise low-flow measurement of cooling water for high-density server racks. These compact vortex flow meters help prevent overheating and are ideal for customers looking to buy a vortex flow meter for data center cooling.

Heat Pumps

Vortex flow meters are applied in heat pump systems to monitor water or glycol flow in heating and cooling circuits. A vortex flow meter ensures stable system performance and accurate low-flow measurement at an attractive vortex flow meter price.

Ultrafiltration Systems

In ultrafiltration systems, vortex flow meters accurately measure low process water and filtrate flows to support stable filtration performance. A vortex flow meter helps optimize membrane efficiency while maintaining a reliable vortex flow meter price.

Industrial Automation

Vortex flow meters are used in industrial automation to measure cooling water, process water, and auxiliary flows. Many integrators choose to buy vortex flow meters because of their robust design, easy PLC integration, and stable vortex flow meter price.


Vortex Flow Meter Price: Transparency as Standard

Traditional B2B pricing is often a “black box.” You request a quote, fill in long forms, wait days, and then receive a price that depends on who you know or how much you buy.
At Massflow-online.com, we break that tradition. The vortex flow meter price is visible online in the web shop.
Price typically depends on:
  • Meter size (DN)
  • Output options (analog 4–20mA, frequency)
Because of our streamlined online model, we save heavily on overhead and pass that savings directly to you. Where brands like Alicat or MKS focus on niche markets with high price tags, we offer high‑quality, standardized vortex flow meters with excellent price-performance.

Buy Vortex Flow Meter: How to Choose and Order the Right One

Starting a buy vortex flow meter process? 
Use this checklist:
  1. Determine the medium: liquid, water or water like liquids.
  2. Check flow range (min/max): Vortex meters often require a smaller meter than the pipe size
  3. Process conditions: maximum pressure and temperature
  4. Installation space: straight pipe runs — 15xDN before, 5xDN after
Not sure which model to choose? Our datasheets are clear, and our team responds quickly with technical guidance.

The Massflow‑online.com Promise: Efficient and Professional

Massflow-online.com is the e‑commerce channel linked to Bronkhorst High‑Tech B.V., a global leader in flow technology. Many engineers search globally for “buy vortex flow meter” only to encounter long import times and 12‑week delivery cycles.
We turn that paradigm around:
✔ Worldwide delivery
✔ Fast dispatch (usually within 2 working days)
✔ Proven, standardized solutions — ready to use
✔ No-nonsense clarity: what you see is what you get



Frequently Asked Questions (FAQ)

What is a vortex flow meter?
An instrument measuring volumetric flow of liquids, gases or steam via vortex shedding frequency.
Where can I buy a vortex flow meter?
Via Massflow-online.com — fast, reliable and directly available.
What does a vortex flow meter cost?
Industrial vortex flow meters range from €500–€2000 depending on size and features.
Which vortex flow meter should I buy?
Choose based on flow range, turbulence, material and temperature requirements.
What are the benefits of vortex meters?
No moving parts, high accuracy, wide range, suitable for liquids, gases and steam.
In which industries are they common?
Process industry, food industry, HVAC, energy, water treatment, OEM machine building.


Conclusion: Time for Action

Whether you need to replace a faulty meter or design a new machine, reliability and delivery speed are non-negotiable. With our vortex flow meters, you choose proven technology wrapped in an efficient, online‑first buying experience.
Don’t let your process wait.
Check our range, explore specifications and experience the ease of working with Massflow-online.com.
Have a specific application question? Contact us — we’re ready to help quickly and expertly.