
Bruno Contracting: The Technology of Yesterday, Today and Tomorrow, Combined with the Experience of Veterans
BPB25 Plenum Box

Duct Construction: In accordance with SMACNA “HVAC Duct Construction Standards”.
Ductwork Pressure Classification: 250 Pa up to 2500 Pa
Materials: Galvanized steel (ASTM 653, ASTM 924 – G90), Stainless steel (ASTM A167, ASTM A480), Aluminum (ASTM B209, alloy 3003, H14)
Connection Types: Slip and Drive, Flanged connectors
Fabrication: Assembled or knock-down, max diameter 2400mm
Standard Length: 1000mm straight ducts
Stiffening: Cross-broken/beaded except when liner is applied
Sealing: Duct sealant applied per classification