Roots Dry Vacuum Jetted (DVJ) Positive Displacement Blowers

HR Blowers UK offers quality and efficient DVJ rotary positive displacement blowers from a range of manufacturers – aimed at meeting the needs of our UK and worldwide customers. This range includes:

Need help sizing your blower? The HR Blower engineering team are here to assist. Contact us today.

Howden Dresser Roots DVJ WHISPAIR Exhauster

These blowers have a WHISPAIR discharge jet plenum design which allows cool, atmospheric air to flow into the cylinder. This design permits continuous operation at vacuum levels to blank-off with a single stage unit, without water injection.

The DVJ’s cooling design handles the problems caused by high discharge temperatures at vacuum levels beyond 16” Hg.
Flows to 16870 cfm (28662m3/hr).
Vacuums to 27” Hg (910 mbar).
Range of sizes available.

Howden Dresser Roots 2504 DVJ WHISPAIR Exhauster

This WHISPAIR dry vacuum exhauster has a discharge jet plenum design which allows cool, atmospheric air to flow into the cylinder.

Design permits continuous operation at vacuum levels to 20” Hg (675 mbar) with a single stage unit.

Howden ROOTS-FLO Blower

This heavy-duty rotary unit is a compact design engineered for reliable pneumatic conveying of grain and similar products.

Vacuums to 16” Hg (539mbar)
Pressure to 15 psig (1034mbar)
This unit is your drop-in replacement solution

Why choose HR Blowers UK for all your Roots Dry Vacuum Jetted Blower needs?

Decades of experience from industry technical experts.
Many lines already in stock.
Speedy turnaround on orders placed and delivered in the UK or worldwide.

Looking for DVJ PD blower parts? HR Blowers can supply a range of DVJ rotary blower parts to help keep your machine operating.

We also service and repair DVJ type blowers,
contact our friendly team today.