Caleffi Robocal 3 8 inch Automatic Air Vent Float with Automatic Shut-off Cock 502530 underfloor heating accessorie tested to EN 14511

tested to EN 14511

creates a fully waterproof wet room heating system without membrane cuts

The catalytic alloy is not consumed by the process — it acts purely as a catalyst

and it can manage up to 6 units in cascade

Caleffi Robocal 3 8 inch Automatic Air Vent Float with Automatic Shut-off Cock 502530 underfloor heating accessorie tested to EN 14511The Caleffi ROBOCAL Series 5025 Automatic Air Vent with Integral Automatic Shut off Cock (MPN 502530) is a 3 8" BSP male threaded float type automatic air vent distinguished by its built in automatic shut off cock. When the vent body is unscrewed from its base, an EPDM O ring sealed piston closes automatically, isolating water flow without any manual valve operation or system drain down. This makes the 502530 the preferred choice wherever routine vent