29.05.2025
The 31st edition of the International Trade Fair of Machines and Devices for Water and Sewage WOD-KAN attracted many visitors to our stand. For 3 days we had the opportunity to present control and measurement devices and innovative solutions for the water and sewage industry.

The devices we presented included devices for measuring pressure, level, flow, water quality and controlling the operation of pumping stations. The new electromagnetic flowmeters enjoyed great interest at our stand: the Flow38 electromagnetic flowmeter with an integrated IoT module and the Flow38 LW electromagnetic flowmeter for pipes that are not fully filled.
We also presented ECL, ATM.1ST/N hydrostatic probes and a new water level probe using LPRS radar technology. In the section on pressure measurements, you could familiarize yourself with our EPI and NAT pressure transducers and the DPS pressure transducer with display.
Our guests also often asked about devices for measuring water quality. At the fair, we presented, among others: the AquaTROLL 500 multi-parameter water quality probe, the RDO Blue dissolved oxygen probe, the TurbiTech suspended solids and turbidity sensor, the SludgeWatch 715 sludge level detector and many others.

Visitors to the fair could also see our ready-made pumping station control and monitoring system.
We would like to thank all guests for their numerous visits to our stand. See you next year!
24.07.2024
A pressure switch is a device that monitors the pressure in the system and automatically responds to changes in pressure, turning on or off devices depending on the set pressure thresholds. Pressure switches are widely used in hydraulic and pneumatic systems and other applications requiring pressure control.
07.11.2025
We have already delivered nearly 1,000 electromagnetic flowmeters to our customers. The experience we have gained has shown us the most common problems encountered by designers, installers, and users of these devices. In this article, we will focus on the proper selection of an electromagnetic flowmeter.
22.05.2026
The 32nd edition of the WOD-KAN Fair will take place in Bydgoszcz next week. A key part of Poltraf's business is the distribution of measurement devices for the water and sewage industry. That's why we couldn't miss this event.
We are a representative and distributor in Poland of the following brands: