Product Description

Important Notes:

2023: The TRI-RAM models are no longer available in bottom hand drive configurations. If you require a bottom drive please contact us to discuss.

2021: This unit was redesigned in 2021. The previous design had rectangular connections that required flange adapters. The new version has integral DIN flanges built in.

Click here for information and photos of the previous obsolete design.

Flow Range: to 847 CFM
Max Δ Pressure: 15 psi
Max Δ Vacuum: 16″ Hg
Maximum RPM: 4750
Minimum RPM: 850
Max ΔT: 240˚F
Inlet Connection: 125mm
Discharge Connection: 125mm
Shaft Dia.: 35mm
Drive End Lubrication: Oil
Gear End Lubrication: Oil
Weight: 335 lbs

Includes detachable rugged steel mounting feet.

The Tri-RAM 409 is a replacement unit for the discontinued RAMX 155

ROOTS Tri-RAM Model 409

BOM Number: RC-205456020 SKU: N/A Category:


The Tri-RAM 409 is a replacement unit for the discontinued RAMX 155. Please note this is not a drop-in replacement and modifications to your system may be required.

Shipping Weight: 375 lbs
Shipping Dimensions: 32 × 29 × 28 in
Max Pressure:

15 psi

Max Speed:

4750 RPM



Max Flow:

847 CFM

Max Vacuum:

16" Hg