RASCO/Reliable® Model A AMDA23 Automatic Air Pressure Maintenance Device , 23psi, 6304001123 F3Res obstructed ceiling construction as defined

obstructed ceiling construction as defined and permitted by NFPA 13

S271BFS420 Fire Sprinkler Head

Escutcheon for use with Viking institutional fire sprinkler model numbers:

Pendent - Available In Multiple Colors and Temperatures

1 1/2" - 2"

RASCO/Reliable® Model A AMDA23 Automatic Air Pressure Maintenance Device , 23psi, 6304001123 F3Res obstructed ceiling construction as definedThe Model A Pressure Maintenance Device (PMD) is designed for use where a source of compressed air (plant air system, tank mounted compressor with a pressure control, etc.) or nitrogen cylinder (equipped with a high pressure regulating device) is available. The regulator in the Model A PMD reduces higher pressure air or nitrogen to a level required by a dry pipe valve, dry pilot line, or a deluge valve based preaction system. The Model A PMD will