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InterApp

Providing full scale valve solutions for desalination processes

As a customer-focused valve manufacturer with a worldwide presence, we provide full service that ranges from comprehensive project support to plant-specific valve configurations. 

Whether for membrane based technologies such as reverse osmosis and electrodialysis or thermal based technologies such as distillation, our process-specific and certified solutions stand for reliability and high performance. Customers all over the world rely on our proven products and know-how since many years.


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Our valves and actuators cover the main technical challenges encountered in desalination plants, such as corrosive conditions both from the environment and from the high salinity of the sea water.

As for potable water applications, our valves are approved by DVGW, ACS, NSF-61 and WRAS.
DVGW ACS NSF WRAS






Desalination Competence Centre

Our competence centre for seawater desalination at InterApp Spain acts as a global coordination point for sales and production activities within the AVK Group.
Our team will be happy to provide you with advice and day-to-day support for your projects worldwide.
We look forward to hearing from you.

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Desponia® – DN 25 up to 1600

The Desponia® butterfly valve is designed for all kind of desalination applications.

Available with ductile iron body and different disc and liner materials, it offers the right solution for pressures up to 16 bar and all processes related to seawater intake, chemical pre-treatment, desalination and post-treatment.

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Desponia® plus – DN 25 up to 600

The Desponia® plus butterfly valve is designed for all kind of desalination applications at higher pressures.

Available with ductile iron, carbon steel and stainless steel body and different disc and liner materials, it offers the right solution for pressures up to 20 bar and all processes related to seawater intake, chemical pre-treatment, desalination and post-treatment.

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Further products

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