.jpg)
New differential pressure flow meters of the VD series for accurate measurement of compressed air and gases have appeared on the "Izmerkon" company website. Each model has its unique features, allowing you to choose the optimal solution for specific tasks.
VD 520 – compact and versatile
Built-in flow meter VD 520 is a basic universal option for a wide range of applications. The device is ready for installation and equipped with built-in pressure and temperature compensation. Its key advantage is the unique sensor sensitivity, allowing accurate measurement of flow velocity below 2 m/s. The flow meter has a robust design without moving parts and supports a wide measurement range, and the control unit can be removed for convenient calibration. Standard output signals: RS 485 (Modbus-RTU) and 4-20 mA.

VD 550 – for extreme conditions
The flow meter model VD 550 is specially designed for working with wet compressed air and gases under high temperature and pressure conditions. The main differences of the VD 550 are an extended temperature range of the measured medium up to +180°C and the ability to operate at pressures up to 100 bar. The device also features high sensitivity in the lower range (< 2 m/s) and is housed in a shockproof IP 67 enclosure for outdoor installation. Allows installation under pressure.

VD 570 – enhanced protection and connectivity
Embedded flow meter VD 570 combines the compactness and versatility of the VD 520 model with the increased IP 67 enclosure protection class, like the VD 550. The device provides data on flow, consumption, temperature, and pressure, suitable for pipelines of various diameters. The VD 570 offers a wide range of output interfaces, including optional Ethernet (PoE), IO-Link, and HART, M-Bus, ensuring easy integration into modern automated control systems.

Common advantages of the VD series
- Measurement principle: differential pressure using an averaging Pitot tube (requires shorter straight sections).
- High accuracy: ±1.5% of the measured value.
- Wide measurement range: 1:100 / 300.
- Fast response: t99 < 1 second.
- Built-in compensation: automatic recalculation of flow considering temperature, pressure, and medium density.
Ready to optimize your accounting system?
Detailed technical specifications, drawings, and application areas of each flow meter are available on our website. For consultation and equipment selection, contact our specialists by phone at +7 (812)-309-56-05 or submit a request directly on the page of the model you are interested in.

