Atlas Copco PAS 100 HFS and PAS 150 HFS water pumps have Tier 4-F engines rated at 49 and 74 horsepower, respectively. The wet end has a diaphragm vacuum pump and a separator. The semi-open impeller allows for liquids with solids up to 3 inches in suspension.
The 4-inch PAS 100 HFS produces a maximum flow of 1,230 gpm and a maximum pressure of 164 feet of head.
The 6-inch PAS 150 HFS produces 2,250 gpm of flow and pressure up to 167 feet of head.