Product Description

Includes a mounted water spray nozzle and a water flow meter for water injection (shipped loose). This feature cools the vacuum unit to enable it to reach deeper vacuum. This unit also runs quieter with water injection when compared to operating dry.
Maximum Sealing Water 4.5 GPM

Flow Range: to 400 CFM
Max Δ Pressure: 18 psi
Max Δ Vacuum: 24″ Hg
Maximum RPM: 3200
Minimum RPM: 848
Max ΔT: 60°F
Inlet Connection: 4″ FLG
Discharge Connection: 4″ FLG
Shaft Dia.: 1.5″

Drive End Lubrication: Oil
Gear End Lubrication: Oil
Required Oil for Horizontal Unit: 19 ounces drive end, 36 ounces gear end
Required Oil for Vertical Unit: 9 ounces drive end, 18 ounces gear end
Unit Weight: 300 pounds
Shipping Container: Skid 32″x29″x23″ (LxWxH)
BOM# 82166020, 56505320, 55898320

Roots VJ vacuum blowers are designed to handle a limited quantity of liquid without damage. This permits introduction of sealing water at the blower inlet to improve operating efficiency and reduce internal temperature rise. Part or all of the water required for sealing purposes may be present in the process being served by the blower. To establish and maintain continued satisfactory performance, a Roots VJ vacuum blower must be operated within certain approved limiting conditions. The Manufacturer’s warranty is contingent on such operation. See the Manufacturer’s Installation, Operation and Maintenance Manual for details on the maximum allowable operating conditions.

Please note that these units are typically not kept in stock. When you place an order pdblowers will advise you of the current lead time.

406 ROOTS RAM-VJ WHISPAIR Water Sealed Vacuum Exhauster

BOM Number: 82166020 SKU: N/A Category:


  • Meets Build America Buy America Act requirements
Shipping Weight: 385 lbs
Shipping Dimensions: 32 × 29 × 23 in
Max Flow:

400 CFM

Max Pressure:

18 psi

Max Vacuum:

24" Hg

Max Speed:

3200 RPM