What horsepower is the FS-Curtis FRB20SU1 air compressor?

The FS-Curtis FRB20SU1 is rated at 20 HP.

How much air does the FS-Curtis FRB20SU1 produce?

The FS-Curtis FRB20SU1 delivers 81 SCFM at 125 PSI.

What is the maximum pressure of the FS-Curtis FRB20SU1?

The FS-Curtis FRB20SU1 has a maximum operating pressure of 175 PSI.

What size tank does the FS-Curtis FRB20SU1 have?

The FS-Curtis FRB20SU1 has a 120-gallon horizontal tank.

Is the FS-Curtis FRB20SU1 single-stage or two-stage?

The FS-Curtis FRB20SU1 is a single-stage compressor.

What voltage does the FS-Curtis FRB20SU1 require?

The FS-Curtis FRB20SU1 runs on 230/460-3.

Is the FS-Curtis FRB20SU1 oil-free or oil-lubricated?

The FS-Curtis FRB20SU1 is oil-flooded.

What is the FS-Curtis FRB20SU1 best for?

The FS-Curtis FRB20SU1 is best suited for Continuous-duty plant air for production lines, pneumatic tools and 24/7 manufacturing facilities..

FS-Curtis FRB20SU1 – 20 HP 120-Gallon Screw Air Compressor

The FS-Curtis FRB20SU1 (RSB20) is a 20-HP single-stage oil-injected rotary screw air compressor delivering 81 CFM at 125 PSI (up to 175 PSI max), on a 120-gallon ASME air receiver. It uses a belt-driven airend with air cooling on a 3-phase motor.

CFM

81 @ 125 PSI

Duty

— continuous

Tank size

120 gal

Air output per horsepowerAirflow per motor HP

4.05CFM/HP

Poor 2.8Typical 3.15Good 3.5

Isentropic efficiencyClass median · 1-stage rotary screw

75%

Poor <50Good 70Best 92

Price per cubic foot · minuteVerified retailer price

$265$/SCFM

Good $180Typical $211High $260

PUMP & DRIVE

Stages1-stage screw

Cylinder—

Pump RPM—

Lubricationoil-flooded

Oilcompressor oil (oil-injected)

Sump—

Pump life—

Pump material—

Head material—

Intercooler—

PERFORMANCE

Catalog CFM81 @ 125 PSI

CFM / HP4.05

Cut-in / out—

Tank fill—

Est. draw17.6 kW

COST & MAINTENANCE

Electric · yearlyEst. $6,302

Maintenance · yearlyEst. $500

ELECTRICAL & FORM

Serviceelectric

Voltage230/460-3

Amps—

Motor—

Motor RPM—

Control—

Starter—

Weight1305 lb

FormHorizontal · 120 gal

BUILD & ENVIRONMENT

Air outlet—

Drain—

Drain outlet—

ASME tank—

Made in USA—

Noise79 dBA

Op. temp—

Dimensions—

Ship weight—

Warranty—

Where this sits in the catalog

Histograms below: highlighted bar marks this unit’s bucket.

Catalog: 1655 units
Peer class: 42 · 20 HP

Sizing & pricevs. 42 in class

SCFM @ 20 HP81cfm
20median 7892
+3.8% vs. median
Average price$21,446
$10,318median $17,180$25k
+24.8% vs. median

Efficiency vs. peersvs. 42 in class

CFM per HP4.05cfm/hp
1median 3.94.6
+3.8% vs. median
Price per CFM$265$/scfm
$170median $226$1,262
+17% vs. median

Where this is sold

Compressors Now
Verified 2 months ago
$21,446
Lowest

Find an installer / dealer near youAuthorized FS-Curtis dealers · search by ZIP

Price history

Showing the current verified price for each retailer. As the price-tracking worker collects new readings, dots will appear along each line.

Compressors Now

Suggest an edit or report a problem

Spot a wrong spec, a broken link, a missing retailer, or anything else? Send a note. Comments are reviewed by editorial — they’re not published.