Gardner Denver Heliflow Blowers
Helical screw blowers for the highest efficiency.

Overview
Heliflow blowers use a helical screw profile rather than two- or three-lobe rotors. The result is significantly better volumetric efficiency and lower power draw at the operating point — particularly attractive for large aeration plants where energy is the dominant cost.
Key features
- Higher volumetric efficiency than lobe blowers
- Lower power draw at continuous operating point
- Preferred for energy-intensive aeration duty
Available models
Representative sizing across the range. Our applications team confirms the right frame for your operating point.
| Model | Flow (ICFM) | Max Pressure / Vacuum | Notes |
|---|---|---|---|
| Heliflow 511 | 1,000 – 2,500 | 15 PSIG | — |
| Heliflow 514 | 2,000 – 4,000 | 15 PSIG | — |
| Heliflow 518 | 3,000 – 6,000 | 15 PSIG | — |
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Talk to an Expert
Ready to specify?
Tell us the flow, pressure and gas conditions — we'll come back with a right-sized recommendation, package options and lead time.
(800) 955-6188Gardner Denver Heliflow Blowers SKUs
3+ — engineered to your operating point.
Fast Response
Applications engineers on the line Mon–Fri, 7am–5pm PT.
Ready to move on your project?
Send us your operating conditions or a P&ID. Our applications team responds within one business day with sizing, package options and lead time.
- Flow, pressure and gas conditions review
- Frame size and drive recommendation
- Package, enclosure and accessory options
- Lead time and firm quote



