Air Stack

Model SPSA Spiral Pipe Stack                                                                          

Assemblies are formed from a 

combination of Model SP Spiral Pipe, Model ST Spiral Tees, Model SN Spiral 

Nineties and Model SC Stack Caps, along with a host of critical accessories to

provide seals, flexible connections and structural support for the complete stack 

assembly. When combined as required, these products provide economical 

fresh air intakes for Bebco Pressurization Units, 

Ventilation Units, Air Conditioners and Gas Phase Filtration Units, to acquire 

air from a source above any concentration of flammable, toxic or corrosive 

vapors that are above acceptable levels of concentration at ground level. 

Spiral pipe and fittings are available in 8” to 24” standard and custom 

diameters in 16 or 20 gauge galvanized steel, 304 Grade stainless steel or 

316 Grade stainless steel materials. Galvanized material may feature no finish, 

a hot dip galvanized finish or an exterior surface urethane finish. Stainless 

materials may feature no finish or an exterior surface urethane finish. The 

bodies of all fittings are seal welded. Flanges on galvanized spiral pipe and 

fittings can be seal-welded or tack-welded and sealed by marine grade calking 

or a hot-dip galvanized finish. Flanges on stainless spiral pipe and fittings 

can be seal-welded or tack-welded and sealed by marine grade calking.