PA Series® (Prime Aire)

With a variety of sizes and operating ranges, Gorman-Rupp’s extensive line of Prime Aire priming-assisted (dry prime) pumps are hard-working, dependable and ready to tackle the toughest applications including large solids and slurries.

The Prime Aire system uses a venturi compressor priming chamber and priming valve which eliminates the leaks associated with traditional vacuum-assisted pumps. This unique system reduces environmental concerns on sewage bypass operations and also enables the pump to operate under flooded suction conditions without leaking. The positive priming capabilities of the PA Series make it the perfect choice for applications where a large volume of air is in the liquid being pumped, there are intermittent flows or there are long or oversized suction lines. All Prime  Aire pumps are configured with EPA Tier compliant engines.


The modular design, featured on several PA Series pump models, enables the addition/removal of a lightweight, aluminum, acoustically-treated enclosure to the standard fuel base. The enclosure provides excellent corrosion resistance and offers a significant reduction in sound levels (68 dBA at 23’).

Size 4" (100 mm), 6" (150 mm), 8" (200 mm), 10" (250 mm), 12" (300 mm), 14" (350 mm)
Max Capacity 6320 GPM (399 lps)
Max Head 420' (128 m)
Max Solids 3" (76 mm)
Max Temperature 160 F (71 C)
Materials of Construction Cast Iron, Ductile Iron
Item Size Seal Suction Discharge
PA10A60-4045H 10 x 10 Silicon Carbide 10 10
PA10A60-4045H-ESP 10 x 10 Silicon Carbide 10 10
PA10A60-B-E100 3P 10 x 10 Silicon Carbide 10 10
PA12A60-B 12 x 12 Silicon Carbide 12 12
PA12A60-B-6068H 12 x 12 Silicon Carbide 12 12
PA12A60-B-6068H-ESP 12 x 12 Silicon Carbide 12 12
PA12A60-B-E125 3P 12 x 12 Silicon Carbide 12 12
PA12A60-B-QSB4.5P 12 x 12 Silicon Carbide 12 12
PA4A60-4045T 4 x 4 Silicon Carbide 4 4
PA4A60C-B-E30 460/3 4 x 4 Silicon Carbide 4 4
PA4A60C-B-E30 575/3 4 x 4 Silicon Carbide 4 4
PA4A60C-F3L 4 x 4 Silicon Carbide 4 4
PA4A60C-QSF2.8P FT4 4 x 4 Silicon Carbide 4 4
PA4B60-4045H 6 x 4 Silicon Carbide 6 4
PA6A60-4045D 6 x 6 Silicon Carbide 6 6
PA6A60-F4L 6 x 6 Silicon Carbide 6 6
PA6A60-F5L 6 x 6 Silicon Carbide 6 6
PA6B60-6068H 6 x 6 Silicon Carbide 6 6
PA6C60-4045H 8 x 6 Silicon Carbide 8 6
PA6C60-4045T 6 x 6 Silicon Carbide 6 6
PA6C60-4045T PSO 6 x 6 Silicon Carbide 6 6
PA6C60-4045T-ESP 6 x 6 Silicon Carbide 6 6
PA6C60C-B-E50 460/3 6 x 6 Silicon Carbide 6 6
PA6C60C-F4L 6 x 6 Silicon Carbide 6 6
PA6C60C-F5L 6 x 6 Silicon Carbide 6 6
PA6C60C-F6L 8 x 6 Silicon Carbide 8 6
PA6D60-4045T 6 x 6 Silicon Carbide 6 6
PAV3A60C-B 3 x 3 Silicon Carbide 3 3
PAV3B60C-3TNV70 3 x 3 Silicon Carbide 3 3
PAV3C60C-B-E10 460/3 3 x 3 Silicon Carbide 3 3
PAV3C60C-B-E10 575/3 3 x 3 Silicon Carbide 3 3
PA4E71C-3TNV88-ESP 4 x 4 Silicon Carbide 4 4
PA14B60-B-6090H 14 x 14 Silicon Carbide 14 14
PA6D60C-B-E50 460/3 6 x 6 Silicon Carbide 6 6
PA14B60C-B 14 x 14 Silicon Carbide 14 14
PA4A60C-4LE2T FT4-ESP 4 x 4 Silicon Carbide 4 4
PA6D60-4045T FT4-ESP 6 x 6 Silicon Carbide 6 6
PAV3B60C-3TNV80F FT4 3 x 3 Silicon Carbide 3 3
PA6D60-4045T FT4 6 x 6 Silicon Carbide 6 6
PA4E71C-3TNV88F FT4-ESP 4 x 4 Silicon Carbide 4 4
PA4A60C-4LE2T FT4 4 x 4 Silicon Carbide 4 4
PA6H60-4045H FT4-ESP 8 x 6 Silicon Carbide 8 6
PA8E60-4045H FT4 8 x 8 Silicon Carbide 8 8
PA10A60-4045H FT4 10 x 10 Silicon Carbide 10 10
PA14B60-B-6090H FT4 14 x 14 Silicon Carbide 14 14
PA6H60-4045H FT4 8 x 6 Silicon Carbide 8 6