Bonnets for free-flow valves with non-rising stem
Bonnets for free-flow valves feature a grease chamber without dead zone in the stem. They can be used for both angle- or straight-seat valves. The stem provides no room for stagnation water, germs or limescale and is therefore considered as legionella-safe. With a rising stem, the valve turns upwards when opened, and with a non-rising stem, the valve keeps its position.
The handwheels are made of tough, very hard and rigid plastic.
