Product Description

Equalizer 4509 Blower from MD Pneumatics / Tuthill

The Equalizer 4509 DF Positive Displacement Blower is a model from Tuthill’s M-D Pneumatics division.

These units are designed to be interchangeable with equivalent ROOTS-FLO® and Duroflow models.  pdblowers is the largest distributor for Roots, the top manufacturer of positive displacement blowers, and we keep many Roots ROOTS-FLO blowers in stock and ready to ship.  We also offer repair services for the Tuthill MD Equalizer blowers. Click here to learn more about Equalizer 4509 blower repair.

The Roots equivalent for a 4509 blower is the Roots 409 ROOTS-FLO, although it is always recommended to check your specific performance requirements when selecting a blower. A basic comparison of specs is below; for more information or to buy online, click here for the Roots 409 ROOTS-FLO blower.

MD Equalizer 4509 vs ROOTS-FLO 409

Equalizer 4509 ROOTS-FLO 409
Flow Range: to 861 CFM to 900 CFM
Max Δ Pressure: 18 psig 15 psi
Max Δ Vacuum: 16″ Hg 16″ Hg
Maximum RPM: 4000 4000
Minimum RPM: 850 850
Max ΔT: 260˚F 275˚F
Connection: 4″ or 5″ NPT* 4″ or 5″ NPT*
Shaft Dia.: 1.4375″ 1.4375″
Drive End Lubrication: Oil Oil
Gear End Lubrication: Oil Oil
Required Oil for Horizontal Unit: 55 ounces 50 ounces
Required Oil for Vertical Unit: 29 ounces 30 ounces
Unit Weight: 320 lb 280 lb

*These units use bolt-on adapters for their connections

Tuthill Model Numbers

Model numbers consist of 13-15 characters and will be stamped on a nameplate attached to the blower, along with the unique serial and year of manufacture.  The first four characters of the model number indicate gear diameter and rotor length. The remainder of the characters indicate other blower configuration options including the types of lubrication and seals, lobes, drive location, blower materials, etc.  An example part number is 4509-A4L2CV3-A

4509 DF Equalizer Blower

BOM Number: 4509 Category:

Stocked Roots equivalent unit:


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