RAM 406 DPJ Dry High-Pressure Blower
Model: RAM 406 DPJ
The Roots™ RAM™ 406 DPJ WHISPAIR™ rotary blower features a unique discharge jet plenum design that introduces cooled, pressurized air from the system into the cylinder. This helps control both temperature and pressure equalization. As a result, this Roots WHISPAIR blower can operate continuously in a single stage at discharge pressures of up to 30 PSIG, without relying on valves, vanes, or Teflon rings.
Product Specifications
Frame Size
406 DPJ
Flow Range
Up to 545 CFM
Max Δ Pressure
30 PSI
Maximum RPM
4000
Minimum RPM
1750
Max ΔT
240ËšF
Product Specifications
RAM 406 DPJ Dry High-Pressure Blower
Frame Size: 406 DPJ
Flow Range: Up to 545 CFM
Max Δ Pressure: 30 PSI
Maximum RPM: 4000
Minimum RPM: 1750
Max ΔT: 240˚F
Inlet Connection: 4″ FPT
Discharge Connection: 5″ FPT
Jet Port Connection: 4″ FPT
Shaft Diameter: 1.5″
Drive End Lubrication: Oil
Gear End Lubrication: Oil
Required Oil (Horizontal Unit): 55 ounces
Required Oil (Vertical Unit): 27 ounces
Unit Weight: 365 lbs (165.9 kg)
Shipping: Skid
Design & Features
WHISPAIR™ jet design feeds cooled discharge air in the direction of impeller movement to aid rotation
Integral-shaft ductile iron impellers with involute profiles
Grey iron casing and headplates with aluminum drive and gear covers
Carburized and ground alloy steel spur timing gears, taper-mounted and locknut secured
Cylindrical roller bearings with splash lubrication at both gear and drive ends
Piston ring seals to reduce air leakage through headplate bores
Lip-type oil seals to prevent lubricant migration into the air chamber
Top shaft extended for side outlet configurations; left or right shaft extendable for top outlet setups
Mechanical seals available for gas applications