Device for pneumatical activation of a drain valve

摘要

The device enables full flushing or partial flushing. It has first bellows (30) in an operating device (3) to produce a control variable and second bellows (20) at the drain valve (2) as a pneumatic lifter, the bellows can be connected via only one line (4), whereby the first bellows are only partly compressed to produce the control variable for partial flushing and fully compressed for full flushing.