Pressure Class Rating: Negative 30” Water Gauge Max

Sizes Available: 3” and up

Lengths Available: 6” through 60”

Material Available: Standard Galvanized G90, Black Iron, 304 and 316 stainless steels are available.

Fabrication: Sheets of metal are cut per diameter stretch out at 5’ lengths. Then rolled into desired diameters, creating a solid round tube with one longitudinal seam which is butted up, tack welded on 4 inch centers, and then fully welded.

Connection: Angle rings are tack welded on the straight pipe. Angle rings have pre punched bolt holes. Connections are made by using neoprene gasket between joining flanges and bolting them together. Angle rings are available to match the ductwork material.