Dwyer SFI-300-2 Sight Flow Indicator 2 in Bronze Npt

Product Description

The DWYER SFI-300-2 is a 2-inch bronze body sight flow indicator designed for visual confirmation of liquid or gas flow in pressurized piping systems. It handles a maximum working pressure of 125 psi and a maximum working temperature of 200 degrees F, making it suitable for a wide range of industrial and mechanical applications. The unit features a removable glass window for inspection or replacement without full disassembly. Buna-N seals provide reliable performance with common hydraulic fluids, coolants, and oils. At 5.5 inches in overall length and 7 pounds, the SFI-300-2 is a solid, service-ready component installed by pipefitters, HVAC technicians, and mechanical contractors.

The DWYER SFI-300-2 is suited for use on coolant tanks, hydraulic lines, hydraulic tanks, oil reservoirs, and pressure vessels. Its 2-inch NPT threaded connection fits standard pipe configurations in both horizontal and vertical mounting orientations, giving installers flexibility in layout. It is compatible with both gas and liquid media, making it a versatile choice across mechanical, industrial, and HVAC piping systems where visual flow verification is required.

Key Features

• Bronze body construction for corrosion resistance in fluid handling applications
• Removable glass window for field inspection or replacement
• 2-inch NPT threaded connection supports standard pipe installations
• Dual mounting orientation: horizontal or vertical installation
• Buna-N seals compatible with coolants, hydraulic fluids, and oils
• Safety tested and manufactured for use with both gas and liquid media

Compatibility

Designed for use on coolant tanks, hydraulic lines, hydraulic tanks, oil reservoirs, and pressure vessels where a 2-inch NPT threaded sight flow indicator is required for gas or liquid service.

Installation Notes

Installation should be performed by a licensed pipefitter or qualified mechanical technician in accordance with applicable piping codes. Depressurize and isolate the line completely before installing or servicing the sight flow indicator. Use appropriate thread sealant compatible with the process media on the NPT threads. Do not exceed the rated 125 psi working pressure or 200 degrees F temperature limits during operation.