This is a Rolair PMP22K30GR 2-stage cast iron air compressor pump designed for 5 to 7.5 HP motors. It features a splash-lubricated 2-cylinder pump delivering up to 175 PSI maximum operating pressure and 19.1 to 24.0 CFM airflow. Built with heavy-duty cast iron construction, stainless steel reed valves, and a 15-inch dual-groove flywheel.
We have inspected this item and we do not have the capability to install the unit to fully test it. There are some cosmetic scuffs and scratches throughout the unit. Minor outer box wear and tape exist from handling, and one oil bottle plastic container has a minor dent. No functional testing was performed.
Please refer to the photos for more information.
This unit only includes what is photographed in the listing.
Technical Specs
| Item | Air Compressor Pump |
| Manufacturer Part Number | PMP22K30GR |
| Lubrication Type | Splash Lubricated |
| Number of Stages | 2 |
| Maximum Output Power | 7.5 hp |
| Free Air Flow Rate @ Maximum Pressure | 19.1/24.0 cfm @ 175 psi |
| Number of Cylinders | 2 |
| Maximum Operating Pressure | 175 psi |
| Flywheel Diameter | 15 in |
| Pump Speed | 1,200 RPM |
| Construction | Cast Iron |
| Groove Section | A |
| Valve Type | Reed |
| Valve Material | Stainless Steel |
| Rotation | CCW |
| Bore Diameter | 2.04 in; 4.12 in |
| Stroke Length | 3-1/16 in |
| Outlet Size | 0.75 in |
| Outlet Connection Type | NPT |
| Lubrication Required | Yes |
| Oil Capacity | 47 fl oz |
| Overall Height | 20 in |
| Overall Width | 14 in |
| Overall Depth | 17 in |
| Average Pump Life | 10,000 hr |
| Number of Grooves | 2 |