Gas Mixing Tube Series

Clear PVC mixing tubes are an important component in all Nuvair nitrox membrane systems. Made from Schedule 40 Clear PVC with plain end connections/meaning without fittings. The static mixing element is edge sealed to the inside of the housing; it improves mixing efficiency and increases rigidity of the tube assembly. Static mixing tubes are used in a range of industries and applications beyond nitrox breathing gases.

Grouped product items
Product Name Qty
1.25 in dia x 30 in Gas Mixing Tube | 1.25-40C-4-12-1SP
1.5 in dia x 30 in Gas Mixing Tube | 1.5-40C-4-6.2-1SP
2 in dia x 40 in Gas Mixing Tube | 2-40C-4-6.2-1SP


  • Replacement part for Nuvair low-pressure nitrox membrane systems
  • Admixing of water treatment chemicals
  • pH control
  • Chlorinations and ozonation
  • Process control sampling


SKU Pipe dia. Number of
Length Max Working
Pressure (psi @ 75°F)
Typical Flow
Pressure Loss
1.25-40C-4-12-1SP 1-1/4 in 12 30 in 170 6–40 0.50–24.5
1.5-40C-4-6.2-1SP 1-1/2 in 6 30 in 170 6–40 0.50–12.25
2-40C-4-6.2-1SP 2 in 6 40 in 140 9–60 0.50–18.5