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PolyBlock (TM) standardized non-geared compressor for PP/PE

Atlas Copco’s standardized, direct driven, non-geared PolyBlock™ centrifugal turbocompressor delivers maximum reliability and availability for your plastics production. Custom-designed for maximum compressor efficiency and robustness in complex and rigid polyolefin processes.

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Did you know?

Atlas Copco Gas and Process has more than 200 references for polyolefin applications, and achieves turbocompressor availability of 99%.

PolyBlock standardized compressor

Maximum maintainability

Smart plug-in concept enables easy access to all rotating parts such as dry face seals, impellers, bearings or vibration probes

Pre-engineered system with configurable options

PolyBlock™ ensures high reliability with a cost-effective design

Proven and field-tested designs

Decades of experience with critical components such as impellers, casings, guide vanes, shaft seals, gears and bearings

Stage design reduces polymerization risk

Entire compressor stage is designed to prevent that polymer dust settles on your equipment

Highly efficient impellers

Our impellers are custom-engineered to your specific process needs for optimum efficiency

Non-geared centrifugal compressor for best possible plant availability

PolyBlock™ is perfectly suited to handle your high-density polyethylene (HDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE) and polypropylene (PP) processes. PolyBlock™ is a cost efficient, highly reliable direct-driven compressor solution that improves the overall availability of your polyolefin plant.

Its smart plug-in design enables easy access to all rotating parts for maximum compressor maintainability at lower costs.

The PolyBlock™ design of critical components – such as shaft seals, gears and bearings – maximizes compressor robustness to ensure the stable gas supply critical for production. Dry face seals keep process gas within the compressor, minimizing leakage, and ensure all available power is utilized. Dynamically balanced impellers feature backward-leaning blades that are tested for efficiency and balance.

By purging the cavity of the inlet guide vanes with clean dry gas, this ensures reliable performance of the inlet guide vanes of the compressor and, ultimately, of overall plant production.

The standardized design of PolyBlock™ is a response to the market’s needs for reliable compressor solutions for the PP/PE industry. Our solution provides flexibility by offering you a number of standard features that can be added to meet your process requirements. At the same time, PolyBlock™ can meet your high-spec needs if required by the customer

With a significantly smaller footprint than its customizable counterparts, PolyBlock™ supports a maximum level of compressor maintainability to improve the overall availability of your plant.

PolyBlock™ operates in conformance with API 617, API 614, ERC Russia, CSA/CRN, as well as other codes and regulations.

Driving Centrifugal Compressor Technology 5.2 MB, PDF
Ensuring Reliability and Availability for Plastics Production 379.9 kB, PDF

Standardized Cycle Gas Compressor for Polypropylene

Metric
US/Imperial

Performance data

Code	API 617 and API 614 (oil system), latest edition
Effective inlet flow range	15,000 m³/h - 65,000 m³/h 8,828 cfm - 38,257 cfm
Gas	ethylene mix
Maximum discharge pressure	43 bar(a) 623 psia
Maximum suction pressure	41 bar(a) 594 psia
Power requirement HP	16,000 HP
Stages (min./max)	1 - 1
Suction temperature	-45 °C - 150 °C -49 °F - 302 °F

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Aftermarket solutions

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PolyBlock (TM) standardized non-geared compressor for PP/PE