Dwyer SFI-100-1/4 Sight Flow Indicator 0.25 in Bronze

Product Description

The DWYER SFI-100-1/4 is a bronze body sight flow indicator designed for visual confirmation of liquid or fluid flow in piping systems. Sized for 0.25-inch line connections, it features a 3-inch overall length and a maximum working pressure of 125 psi. The bronze construction provides reliable corrosion resistance in a range of common fluid service applications. Plumbers, HVAC technicians, and industrial piping contractors install this type of indicator to verify flow presence and direction without disassembling the line. It is a straightforward inline component suited for systems where visual flow verification is part of routine operation or commissioning.

This sight flow indicator is appropriate for residential and light commercial plumbing, hydronic heating, cooling systems, and process piping where 0.25-inch connections are used. It is rated for service up to 200 degrees F, making it suitable for hot water and low-pressure steam-adjacent applications. The compact 3-inch overall length allows installation in tight spaces with limited straight-run clearance.

Key Features

• Bronze body construction for corrosion resistance in common fluid service
• 0.25-inch connection size for small-bore piping installations
• 125 psi maximum working pressure
• 200 degrees F maximum working temperature
• 3-inch overall length fits in space-constrained installations
• Provides immediate visual flow verification without system disassembly

Compatibility

Designed as an OEM-style replacement or new-install sight flow indicator for 0.25-inch bronze-compatible piping systems in plumbing, hydronic, and process fluid applications.

Installation Notes

Installation is performed by licensed plumbers or qualified mechanical contractors following IPC and applicable local codes. Shut off and depressurize the system completely before cutting into any line to install this indicator. Use appropriate thread sealant or PTFE tape on threaded connections and verify joint integrity before restoring system pressure. Do not exceed the rated 125 psi or 200 degrees F service limits.