Profile: ITT Corporation offers commercial pumps for large HVAC applications and residential pumps for hot water heating. Our product includes industrial pumps, residential pumps, air removal devices, commercial and residential tanks, pressure reducing valves, heat exchangers, packaged systems, SES wastewater, engineered wastewater, pump controls and pump accessories. Our maintenance-free in-line pump is available in sizes from 1 inch to 3 inches. This design provides a worry-free, install-and-forget operation. The design incorporates the patented XL-11® precision-crafted bearing system. Our advanced fluid passage design and a permanently lubricated motor provides effective and quiet operation. The hydraulically balanced impeller and resilient motor also help provide smooth, quiet operation. Our isolation flange is a combination of a full port isolation ball valve and a companion flange for circulators. It allows easy service or replacement of the circulator without the need to drain the system.