Industrial 1 Inch NPT Brass Inline Window Flow Indicator Flow Indicator

The Industrial 1 Inch NPT Brass Inline Window Flow Indicator is an inline sight-flow device that uses a brass body and a single viewing window to provide visual confirmation of liquid flow in a piping system. It features a 1 in. NPT female connection for inline threaded installation and can be mounted horizontally or vertically depending on the application. Compatible with water, oil, coolants, and other non-corrosive compatible liquids, it supports pumps, compressors, cooling systems, lubrication systems, and general industrial process piping. The transparent viewing window lets operators verify flow direction, continuity, and fluid condition without disassembly, making it a practical tool for flow verification and process monitoring in industrial settings such as cooling circuits, water treatment equipment, and chemical processing.