Brigade inlet connectors are installed on riser mains and sprinkler systems to:
a, Enable the fire brigade to pump water into the installation by the use of their own equipment during a fire; b, Permit proving tests of the water supplies to the installation to be regularly carried out; c, Facilitate the connection of an emergency water supply to the sprinkler installation if the usual supplies have been disabled.
Materials: The brigade male inlet check valve is from gunmetal LG2 conforms to BS 1400 1985.
Construction: Each inlet consists of a 70mm male instantaneous hose connection and complies with SNZ PAS 4505. The couplings are flanged to the manifold with not less than 150mm between centres, if more than 1 inlet is mounted. The flap valve is able to remain closed when the valve is mounted at 15° to the horizontal.
Identification: Stamped PSL + Date (month and year)