industrial centrifugal air compressors
Polaris® P650 DF
The Polaris P650 DF centrifugal compressor delivers energy-efficient, ISO 8573-1 Class 0 oil-free compressed air for high-flow, low-pressure industrial applications.
Providing airflow capacities from 10,000 to 20,000 CFM, the P650 DF features an innovative dual-inlet design with parallel air paths to maximize airflow while maintaining the same compact footprint as the standard P650. Its combined discharge simplifies system integration, while its plug-and-play configuration helps streamline installation and operation.
As part of FS-Elliott’s Polaris series, the P650 DF offers manufacturers a high-capacity compressed air solution designed to optimize energy efficiency, reduce operating costs, and support dependable performance throughout the compressor’s lifecycle.
Performance Specifications
Match the P650 DF to your operating requirements, then configure the package around your site and process.
FLOW
10,000 – 20,000
CFM
PRESSURE
30 – 50
PSIG
POWER
1,500 – 2,850
HP
AIR QUALITY
ISO 8573-1 CLASS 0
WEIGHT
19,750 lb
DIMENSIONS (L × W × H)
159 x 90 x 87 in
FLOW
280 – 560
m3/min
PRESSURE
2.1 – 3.5
barg
POWER
1,120 – 2,150
kW
AIR QUALITY
ISO 8573-1 CLASS 0
WEIGHT
8,958 kg
DIMENSIONS (L × W × H)
4040 x 2290 x 2208 mm
Specifications vary by configuration.
Features und Vorteile
A compressor’s value extends beyond its rated capacity. The P650 DF combines high-flow, oil-free centrifugal compression with a compact dual-inlet design, simplified controls, and accessible components to help your team maximize performance, simplify maintenance, and support reliable operation.
Confidence for Critical Air Demands
The P650 DF is engineered to deliver ISO 8573-1 Class 0 oil-free air with the reliability and efficiency required for demanding large-flow applications.
Its oil-free air path helps protect processes from compressor oil contamination, while features such as an auxiliary oil pump and available monitoring help operators maintain visibility into compressor condition.
Optimized Design, Efficient Operation
Polaris compressors combine optimized aerodynamics, efficient intercooling, and custom-designed impellers to reduce power requirements and optimize airflow.
Mechanically superior bearings and adjustable inlet guide vanes further support efficient operation by reducing power consumption and responding to changing plant conditions and air demand.
Designed with Service Access in Mind
The horizontally split gear case provides technicians with convenient access to internal components for inspection and service, while the removable airend simplifies maintenance and replacement to help minimize downtime. Straight-through intercooler tubes allow for easier periodic cleaning, and the Regulus® control system helps operators monitor and optimize compressor performance.
These design choices support a practical maintenance strategy for equipment your facility depends on.
Optimize Compressor Performance
Regulus control systems provide intuitive control and real-time visibility into compressor performance, helping operators monitor critical data and respond to changing plant conditions.
Advanced control capabilities simplify operation, support efficiency, and provide the information needed to maintain reliable compressor performance.
Long-Term Support You Can Count On
FS-Elliott supports customers throughout the life of their centrifugal compressor with a standard two-year bumper-to-bumper warranty. For added protection, our optional SteadiAIR® extended warranty provides three additional years of airend coverage, extending protection to a total of five years. Our factory-trained channel partners and global service network provide expert maintenance, technical assistance, and ongoing support.
Our Rapid Response Storage Center provides quick access to replacement airends when needed, while FS-Connect delivers added insight into compressor operation and performance.
From commissioning and service to parts, technical support, and long-term equipment needs, we’re here to help keep your compressor performing reliably for years to come.
Explore Key Components of the Polaris P650 DF
Proven Across Critical Industries
Inhalte und Ressourcen
How to Specify a Centrifugal Compressor for Reliability and Lower Lifecycle Costs
When specifying a centrifugal compressor, the decisions made during the engineering phase can influence far more than equipment selection. Compressor specifications affect reliability, efficiency, project costs, installation requirements, controls architecture, lead times, and long-term operational performance.
The Benefits of Double Flow: Introducing the P650 DF
The Polaris® P650 DF delivers a unique solution for high-flow demands, doubling performance in a compact, efficient, and cost-effective package. Built on FS-Elliott’s 60+ years of oil-free air expertise, the P650 DF combines high capacity with unmatched efficiency and reliability, setting a new standard for industries demanding ISO 8573-1 Class 0 oil-free compressed air.
The Importance of Energy Efficiency
Many manufacturers know that compressed air is often called the Fourth Utility. After water, electricity, and natural gas, compressed air is equally crucial for manufacturing, and luckily there are solutions to help improve energy efficiency to save costs and reduce greenhouse emissions. Additionally, increased efficiency is essential for ESG initiatives that ensure a healthy world for customers, employees, and communities.