-min.jpg "Компактный врезной расходомер со встроенным выпрямителем потока — VA 525")
-min.jpg "Компактный врезной расходомер со встроенным выпрямителем потока — VA 525")
-min.jpg "Компактный врезной расходомер со встроенным выпрямителем потока — VA 525")
-min.jpg "Компактный врезной расходомер со встроенным выпрямителем потока — VA 525")
Спецификация VA 525
Display of two values simultaneously:
Easy installation in the pipeline using the built-in measuring section (for diameters 1/4˝, 1/2“, 3/4˝, 1“, 1 ¼˝, 1 ½“ or 2"). 
-min.jpg "Buy industrial gas flow meter at a low price in St. Petersburg — VA 570")
Compact Insertion Flow Meter with Built-in Flow Straightener — VA 525
Effective resource accounting in production requires equipment that combines accuracy and ease of installation in limited spaces. The VA 525 pipeline flow meter is designed specifically for such tasks. It is intended for measuring the flow of compressed air and nitrogen, providing high stability of readings thanks to its unique design.
The main advantage of this model is the built-in flow straightener. This technical solution allows the device to be installed almost anywhere without worrying about the presence of long straight pipe sections before the sensor.
If you need to request additional technical documentation for the product or require consultation on selecting a configuration for your task, contact our specialists via the form on the website or by phone.
Features of the VA 525 Insertion Flow Meter
Choosing equipment for compressed air system control often comes down to installation complexity. The compact VA 525 flow meter completely changes the installation approach:
- Built-in measuring section: The flow straightener inside the housing neutralizes air vortices caused by pipe bends.
- Interface flexibility: Supports not only classic Modbus RTU but also modern Ethernet, PoE, and M-Bus protocols (optional).
- Universal mounting: The device easily integrates into existing networks via threaded connections from 1/4" to 2".
- Removable unit: During cleaning or calibration, the measuring element can be extracted from the section without fully dismantling the entire line structure.
Along with this device, you may also be interested in the following similar instruments:
- VA 520 — Insertion gas and compressed air flow meter
- VA 550 — Submersible compressed air flow meter
- DS 400 — Digital multifunction data logger
General Information about the VA 525 Flow Meter with Display
A modern flow meter with a display is a data transmission device for energy monitoring systems. The VA 525 is equipped with a bright screen that simultaneously shows the current flow and total consumption.
Particular attention should be paid to the ability to rotate the display image by 180˚. This is convenient if the pipeline runs under the ceiling and the device must be installed upside down.
Versions with Ethernet (PoE) power supply are available. This significantly simplifies cable routing since data and power are transmitted over a single cable. For building automation systems, an M-Bus interface is provided, making the VA 525 a versatile tool for both factories and large infrastructure facilities.
Operating Principle: Thermal Mass Measurement
The VA 525 operates on a calorimetric (thermal mass) method. Inside the sensor are two detectors: one measures the medium temperature, and the other is heated to a certain value above the flow temperature.
When compressed air or nitrogen passes through the sensor, a cooling effect occurs. The energy required to maintain the temperature difference is directly proportional to the mass of the passing gas.
Advantages of this method:
- No need for separate pressure and temperature compensation — the device immediately provides data normalized to reference conditions.
- Absence of moving parts ensures durability and resistance to mechanical wear.
- High sensitivity allows detection of even the smallest leaks.
Industrial Applications
The insertion flow meter is in demand where strict control of compressed air production costs or nitrogen consumption is required. Main areas of use:
- Mechanical engineering and pneumatic lines: Control of air distribution between workshops.
- Food industry: Monitoring nitrogen consumption during modified atmosphere packaging of products.
- Electronics: Control of gas purity and flow during soldering and component assembly.
- Energy audit: Rapid deployment of temporary accounting systems to detect losses and optimize compressor operation.
Properties and Technical Parameters of the VA 525 Insertion Flow Meter
To ensure long-lasting operation, the housing and measuring parts are made of materials resistant to industrial conditions.
Technical Specification
| Parameter | Description and Values |
|---|---|
| Measurement medium | Compressed air, Nitrogen (N2) |
| Operating pressure | Up to 16 bar |
| Temperature range | From -20˚C to +60 ˚C |
| Protection class | IP 65 |
| Accuracy | ± 1.5% of measured value ± 0.3% FSO (On request: ± 1% / ± 6%) |
| Interfaces | Modbus RTU, 4...20 mA, Pulse, Ethernet, PoE, M-Bus (optional) |
| Housing material | Polycarbonate |
Conditions for flow calculation
The device automatically recalculates the volumetric flow depending on the selected gas type. This is important for accurate reporting and comparing indicators with the passport data of compressor units.
- For compressed air: Calculation is based on ISO 1217 (1000 mbar, 20°C).
- For nitrogen: Calculation is based on DIN 1343 (1013 mbar, 0°C).
Measurement range table by diameters
| Thread type | Diameter (DN) | Measurement range (m³/h) |
|---|---|---|
| G 1/4" | DN 8 | 105 l/min |
| G 1/2" | DN 15 | 90 m³/h |
| G 3/4" | DN 20 | 170 m³/h |
| G 1" | DN 25 | 290 m³/h |
| G 1 1/4" | DN 32 | 530 m³/h |
| G 1 1/2" | DN 40 | 730 m³/h |
| G 2" | DN 50 | 1195 m³/h |
Original equipment can be purchased from the company «Izmerkon». We provide direct deliveries, official warranty, and qualified assistance in device setup. Ordering an inline flow meter from an official representative ensures factory calibration accuracy and availability of necessary certificates. To select the optimal model for specific technical operating conditions, simply submit a request on the website or contact the engineering department by phone. We will help integrate the device into the existing monitoring system and set up remote data collection.
