Dwyer SFI-100-2 Bronze Sight Flow Indicator 2 Inch Npt

Product Description

The DWYER SFI-100-2 is a 2-inch bronze body sight flow indicator designed to give technicians a direct visual confirmation of flow in fluid and gas systems. Built with a glass window and a Buna-N seal, it handles working pressures up to 125 psi and temperatures up to 200 degrees F. The body is threaded with 2-inch NPT connections, making it straightforward to install inline on existing piping. It mounts in either horizontal or vertical orientation, adding flexibility for tight mechanical rooms or equipment bays. Licensed plumbers and pipefitters are the typical installers for this type of component.

The SFI-100-2 is suited for a range of industrial and commercial fluid-handling applications. Stated applications include coolant tanks, hydraulic lines, hydraulic tanks, oil reservoirs, and pressure vessels. It is compatible with both liquid and gas media. The 5-11/16 inch overall length fits into standard inline positions without requiring significant pipe rerouting. Its removable glass window simplifies inspection and replacement during scheduled maintenance without pulling the entire fitting.

Key Features

• Bronze body construction for corrosion resistance in oil, coolant, and hydraulic fluid service
• Glass viewing window provides clear, direct visual flow indication
• Removable window design allows in-place servicing
• Buna-N seal material compatible with common hydraulic and coolant fluids
• Dual-orientation mounting: installs horizontal or vertical
• Safety tested per manufacturer standards

Compatibility

Designed for inline installation on coolant tanks, hydraulic lines, hydraulic tanks, oil reservoirs, and pressure vessels using 2-inch NPT threaded piping. Compatible with gas and liquid media within rated pressure and temperature limits.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or local mechanical codes. Depressurize and drain the system fully before removing any existing fittings or threading in the SFI-100-2. Use appropriate thread sealant rated for the media type on all NPT connections. Do not exceed the 125 psi maximum working pressure or 200 degrees F temperature rating during operation.