Air inlets in poultry and pig houses (or houses with other animals) provide good air distribution and the direction of fresh airflow throughout the building. Our inlet valves are properly designed and can be correctly managed. This positively influences animal performance and well-being. Exhaust fans create a negative pressure difference between the interior and exterior of modern, tightly constructed farms. By creating this slight vacuum in the building, the outside atmospheric pressure pushes air into the house through any opening in the building. For the air inlets to be effective, it is important to keep the house as airtight as possible so that incoming fresh air flows through the ventilation inlets. If the house is not tight, fresh air will enter via any pathway (holes, cracks, open doors) leaving you with limited means to control the airflow pattern in the barn.

We work through a dealer network and do not sell directly to end-users. This is because we produce components, not complete systems. System installers and equipment suppliers normally sell our products and include them in their service packages. Contact our sales team to learn about your local dealers.

The majority of our air inlets are produced to be spring-opened, though spring-closed is an option for almost all inlets. The spring can be easily converted from closing to opening or vice versa.

TPI-Polytechniek is a component supplier. We can supply all the components necessary for your ventilation concept. However, for electronic components (controllers, winches, actuators, etc.). Our components can work together with all computers and other electronic components of other suppliers. A best practice is to purchase your full ventilation system with our dealers. This then includes the TPI air inlets or chimneys. The dealer is capable of providing installation and maintenance services as well.

Insulation is always essential. The benefits of good insulated air inlets are higher in extremely cold and extremely hot climates. Research shows that insulation will always have a benefit on heating costs or cooling costs. If you want to learn more about this, please feel free to contact our sales staff. They are very knowledgeable and are always willing to help you with any questions.

The airflow in your house is very significant. Straight flaps guide the air upward or straight direction when the inlets are opened. Curved flaps guide the air downward to the animals and can, therefore, help to cool. TPI manufactures over 20 different inlet designs with 50 variations. No house or equipment is the same, and we can fine-tune the airflow in the house very precisely.

Our offices and warehouse are open from 8.00–17.00 from Monday to Friday.

We use one central phone number, after calling our main office we will redirect the call to your contact person. You can reach us at + 31 (0) 73 6569194.

Yes, we can offer transport over land, air, and sea, ask us to add transport to your quotation.

Yes, a selection of our program, focussed on the U.S. market, can be shipped directly from our warehouse in Mount Pleasant, Iowa.
Yes, a selection of our program is produced in China and focuses on the South Asian market. We can ship directly from our warehouse in Suzhou, Jiangsu.