Conbraco 98-34P-48 Liquid Level Gage Glass 160 Psi

Product Description

The CONBRACO 98-34P-48 is a Red Line grade liquid level gage glass designed for monitoring fluid levels in boilers, tanks, and industrial vessels operating at pressures up to 160 psi. The red line stripe running the length of the glass tube increases visibility under varying light conditions, making it easier for technicians to read fluid levels quickly and accurately. With an outer diameter of 0.75 inches and a 48-inch length, this gage glass is suited for equipment requiring a longer sight glass assembly. Installation is handled by licensed plumbers, boiler mechanics, and stationary engineers as part of routine maintenance or equipment upgrades.

This gage glass is intended for use in steam and hot water boiler systems, pressure vessels, and liquid storage tanks where a clear, reliable visual indication of fluid level is required. The Red Line grade designation indicates suitability for higher-visibility applications. Typical installations include commercial and industrial boiler rooms, HVAC hydronic systems, and process piping where liquid level monitoring is a code or operational requirement.

Key Features

• 160 psi maximum working pressure rated for demanding system conditions
• Red Line grade construction for enhanced fluid level readability
• 0.75 inch outer diameter fits standard gage glass fittings and valves
• 48-inch length accommodates taller vessels and boiler sight glass assemblies
• Single-piece packaging keeps the glass protected until point of installation

Compatibility

Designed as an OEM-style replacement or new installation gage glass for liquid level indicators on boilers, pressure vessels, and tanks requiring a 0.75 inch outer diameter, 48-inch sight glass rated to 160 psi.

Installation Notes

Gage glass installation and replacement should be performed by a licensed boiler mechanic, plumber, or stationary engineer in accordance with local boiler codes and ASME guidelines. Always isolate the vessel, relieve system pressure fully, and allow the system to cool before removing or installing gage glass components. Handle glass tubes carefully to avoid stress cracks; do not overtighten packing nuts, as this can fracture the tube. Verify that all fittings and valves are compatible with the glass outer diameter before installation.