Quality

HDL - Quality in products and co-operation

Hillen de Lelie is client-oriented and has a long-term vision. This already became evident in the 1970's. Based on a conscious low profile strategy, the enterprise has always built on achieving a leading role in water-treatment systems.

One of the pillars of this policy was product innovation. Hillen de Lelie has been aware for some time already that the requirements with regard to water purification would change. Not only quantitatively, but also qualitatively. This is why Hillen de Lelie introduced the Ball Check Valve. A new product in a world, which had grown, accustomed to the flap valve.

The design of the Ball Check Valve is simple, yet revolutionary in its application. The Ball Check Valve eliminates all the technical disadvantages of the flap valve. An increasing number of advisers and clients now choose for the HDL products because of their higher degree of reliability and low cost.

The Ball Check Valve meets the most stringent requirements, both in water-treatment installations and other fluid control systems. The Ball Check Valve is based on Hillen de Lelie's "custom-made" principle. This means that all HDL products are precisely geared to the requirements of any specific project, relieving the client from problems, thus increasing functionality.