For large-capacity industrial process cooling service, Patterson Flo-Pak® packages with variable frequency or constant speed drives follow cooling load with maximum energy efficiency. Control strategies include relay logic or PLC. These units can be configured for bulk liquid unloading, water intake, irrigation and as pipeline boosters. Pump options include end suction, horizontal split case, vertical turbine or vertical diffuser. Other specialized industrial packages include high-pressure systems for such uses as filter press showers, water jet cutting, debarking, filtering and filter backflushing.