Single and double taps for fixed firefighting installations according to NF S61-758, fitted to fire columns (dry or loaded), on which the fireman connects their flexible, progressive operation, complete in 3 laps using a steering wheel.
CONSTRUCTION: Fire red bronze and plastic-coated brass.

Alarm check valve for wet pipes (automatic sprinkler)
Alarm check valve, model AV-1-300, of different diameters flanged or groovedfor sprinkler systems With delay