Return spindles are approx. 20 mm higher than the main spindle and the service valves on the flow pipe.
Application
Preinsulated drainage valves are used where a permanent draining possibility is wanted e.g. for an inspection chamber i.
They are usually installed on a short house connection.
Drainage valves are delivered in series 1 and 2 with Nordic surveillance wires.
At the TwinPipe end fixing bars are welded on.
