Stubbe Air Release / Vent Valve opens to allow air to enter the pipe when a vacuum forms and, when filling, allows air to escape until the liquid level rises enough to push the floating ball onto the seat.
UPVC body is standard with PP floating ball, FPM (viton) seat and seals, DIN spigot ends (unions can fitted to each end to allow solvent weld connection to ends to BS/Ansi dimensioned pipe.)
Note: Must operate in the vertical position.
Size 3/8″ (DN10) → 2″ (DN50) – 16 Bar
* Options: BSP end connectors, PP or PVDF body