COPPUS® Model CP-20 Turbo Blower / Exhauster

The COPPUS® Model CP-20 is an industrial-grade, turbine-driven fan engineered for high-volume air movement, rapid cooling, and hazardous tank degassing. Operating without any electrical motors or wiring, the CP-20 runs purely on steam or compressed air, making it inherently safe and ideal for explosive vapor atmospheres, refineries, offshore rigs, and confined space vessel ventilation where ignition risks must be completely eliminated.

Delivering up to 11,000 CFM at 3,500 RPM, the CP-20 features a heat-treated aluminum alloy 6-bladed axial propeller and peripheral stainless steel turbine blades. Dual-nozzle inlet options allow seamless operation across varying air/steam pressure ranges (40 to 150 psig). Designed for rapid turnaround operations, it incorporates dual mounting flanges that allow it to function instantly as either a positive-pressure blower or a suction exhauster in any orientation.

Key Features:

✅ Inherently safe pneumatic/steam turbine drive eliminates electrical hazards in volatile environments
✅ High air-delivery capacity rated at 11,000 CFM at 3,500 RPM
✅ Heavy-duty cast aluminum casing with heat-treated aluminum alloy 6-blade axial fan
✅ Peripheral stainless steel turbine blade ring for robust pneumatic drive performance
✅ Dual built-in nozzle inlets: Low-pressure (40–80 psig) and High-pressure (80–150 psig)
✅ Reversible airflow operation: mounts as either a blower or an exhauster
✅ Lifetime grease-sealed ball bearings with star tolerance rings for zero routine lubrication maintenance
✅ Versatile positioning: operational in any attitude or mounting angle
✅ Protective inlet and outlet safety wire guards with integrated carrying handles

📦 Package Options:

🔹 Standard Unit: COPPUS CP-20 Turbo Blower/Exhauster with dual safety screens and factory-tested assembly

COPPUS® Model CP-20 Technical Specifications:

Feature	Details
Manufacturer	Curtiss-Wright / COPPUS®
Model	CP-20 Turbo Blower / Exhauster
Operation Type	Turbine-Driven Axial Blower / Exhauster (Reversible)
Drive Medium	Compressed Air or Steam
Rated Airflow Capacity	11,000 CFM (18,690 m³/h)
Rated Operating Speed	3,500 RPM
Maximum Inlet Pressure	150 psig (10.5 kg/cm²)
Dual Nozzle Pressure Ranges	Small Nozzle: 80 to 150 psig (5.6–10.5 kg/cm²) Large Nozzle: 40 to 80 psig (2.8–5.6 kg/cm²)
Air Consumption	128 to 220 SCFM (Small Nozzle) 142 to 250 SCFM (Large Nozzle)
Steam Consumption	380 to 640 lbs/hr (Small Nozzle) 440 to 740 lbs/hr (Large Nozzle)
Fan Impeller	6-bladed axial flow propeller, heat-treated aluminum alloy
Turbine Ring	Single-row stainless steel turbine blades on outer fan periphery
Casing Construction	Heavy-duty split cast aluminum housing
Bearings	Grease-sealed for life ball bearings (P/N 4-011004-06) with star tolerance rings
Overall Diameter	25 in (635 mm) outer flange diameter
Inside Diameter	20-1/8 in (511 mm)
Overall Length / Depth	11 in (280 mm)
Bolt Circle Diameter	22-1/2 in (572 mm) B.C. with 4 slotted holes per flange
Mounting Attitude	Operates in any attitude/orientation (horizontal, vertical, inclined)
Net Weight	117 lbs (53 kg)

Certifications & Compliance:

🔗 Inherently Explosion-Safe Pneumatic/Steam Design – Non-electrical drive
🔗 Mechanical Industrial Safety Standards – OSHA-compliant inlet and discharge guards
🔗 Pressure Vessel – Compressed air and dry/saturated industrial steam systems up to 150 psig
🔗 Marine & Industrial Heavy-Duty Specification: Non-sparking cast aluminum alloy construction
🔗 Download Datasheet

Applications of COPPUS® Model CP-20:

🔹 Oil & Gas (Refinery turnarounds, storage tank degassing, offshore platform modules)
🔹 Chemical Plants (Vessel ventilation, volatile fume purging, reactor vessel cooling)
🔹 Mining (Underground shaft aeration, auxiliary confined-drift air moving)
🔹 Labs (High-volume inert purging and negative-pressure fume evacuation)
🔹 Manufacturing (Boiler inspection cooling, shipboard compartment venting, spray booths)

What’s in the Box?

📦 1x COPPUS® Model CP-20 Turbo Blower / Exhauster
📦 1x Integrated 6-Blade Fan & Stainless Steel Bucket Ring Assembly
📦 2x Heavy-Duty Factory-Installed Protective Safety Screens (Inlet & Outlet)
📦 2x Pre-installed Dual Pressure Inlet Connection Ports (40-80 psig / 80-150 psig)
📦 2x Integrated Rigging & Lifting Handles
📦 1x Factory Installation, Operation & Maintenance Manual

Ordering & Shipping Details

📦 Lead Time: 4 - 6 weeks
📍 Shipping Terms: Worldwide / (Palletized shipping, weight 117 lbs / 53 kg)
💳 Payment Options: Credit Card, PayPal, Net 30 Terms

Related Products:

🔗 COPPUS® Marine Venturi Air Movers – Compressed Air Operated Purge Cones
🔗 Heavy-Duty Inline Steam Strainer Assembly for CP-20 Fans
🔗 COPPUS® Replacement Grease-Sealed Ball Bearing Kit (P/N 4-011004-06)

FAQs:

Does the COPPUS CP-20 require electrical wiring or explosion-proof motor starters?
No. The CP-20 is completely mechanical and powered exclusively by compressed air or steam, eliminating the need for electrical connections, motor starters, or electrical explosion-proof enclosures.

Can the CP-20 be used for both pushing air in and extracting fumes out?
Yes. The CP-20 features identical flanges on both the inlet and outlet sides, allowing it to be bolted to manways and tank openings as either a positive-pressure blower or a suction exhauster.

Can both inlet nozzles be connected at the same time?
No. Only one nozzle must be connected at a time depending on line pressure: the low-pressure nozzle (40–80 psig) or the high-pressure nozzle (80–150 psig). Connecting high pressure to the low-pressure port can overspeed the unit.

Is an external exhaust port or line required for the drive medium?
No. The driving air or steam automatically expands through the internal turbine blades and discharges directly into the fan’s central airflow, eliminating separate exhaust pipework.