Ingersoll Rand 447-533 Pressure-Lubricated Two-Stage Air Compressor Pump, Heavy Duty, 7.5-15HP

Ingersoll Rand 447-533 Pressure-Lubricated Two-Stage Air Compressor Pump, Heavy Duty, 7.5-15HP

The Ingersoll Rand 447-533-IR pressure-lubricated air compressor pump is a high-performance, industrial-grade pump engineered for demanding applications where long duty cycles, high pressure, and maximum reliability are essential. Designed for use in stationary two-stage compressor systems, this pump delivers consistent airflow with minimal maintenance—making it a go-to replacement or upgrade for heavy-use environments such as manufacturing plants, body shops, maintenance facilities, and service fleets.

Unlike splash-lubricated pumps, the 447-533 uses a dedicated pressure lubrication system to ensure vital components like the crankshaft bearings and connecting rods are constantly fed with oil under pressure. This design significantly improves durability, especially in high-heat or high-load conditions. Combined with rugged cast-iron construction and precision-machined components, this pump is built for 24/7 performance.

With a high CFM output and a maximum pressure rating that supports a wide range of industrial air tools and machinery, the 447-533 is ideal for users who can’t afford downtime and need maximum performance from their air system.

The internal Ingersoll Rand part number for this pump is 447-533-IR. This Ingersoll Rand/DevAir compressor pump includes the CPR unloader, aftercooler tubes and flywheel. 

The 447-533 compressor pump is used with the Ingersoll Rand 10hp and 15hp pressure lube compressors that have model numbers which begin with "447PE". The 447 pump was also extensively used by DevAir, Devilbiss, and DV Systems. 

447-533 Air Compressor Pump Features and Benefits:

• Pressure Lubrication System – Provides continuous oiling for internal components, reducing wear and extending life
• Two-Stage Compression – Delivers higher pressure (up to 175 PSI) for demanding pneumatic applications
• Heavy-Duty Cast-Iron Construction – Engineered for long-term durability and thermal stability
• Integrated Flywheel – Designed for optimal cooling and balanced operation
• Service-Ready Design – Easy access to components for routine maintenance and inspection

Technical Details

• Minimum Pump RPM: 500
• Maximum Pump RPM: 900
• CFM with 7.5hp Motor @ 125psi: 29.8
• CFM with 10hp Motor @ 125psi: 38.1
• CFM with 15hp Motor @ 125psi: 52.1
• Number of Cylinders: 4
• Flywheel Diameter: 20"
• Maximum Continuous Duty Working Pressure: 175 psi
• Approximate Oil Capacity of Crankcase: 2.8 litres