Conbraco 20-104-03 Valves

The Conbraco 20-104-03 is a professional-grade rough bronze water gauge valve set engineered for reliable liquid level verification in commercial boiler and tank applications. This 1/2" MNPT liquid level gauge features a standard pattern design with high-strength ASTM B584 bronze construction to ensure long-term structural integrity under thermal stress. The set includes top and bottom valves equipped with Teflon stem packing and EPDM glass seals, providing a leak-resistant interface for 5/8" O.D. sight glass. Designed for versatile pressure environments, these Apollo water gauge valves are rated for 300 PSI at 100°F and 125 PSI at 350°F. The integration of a lightweight aluminum handwheel allows for precise manual throttling and shut-off, while the 1/4" standard drain valve facilitates easy blow-down maintenance. This industrial-duty valve set is a direct replacement for gauge cock assemblies in hydronic and steam systems requiring robust corrosion resistance and high-temperature performance.

• High-Pressure Performance: Rated for up to 300 PSI, making it suitable for a wide range of industrial fluid monitoring tasks.
• Durable Construction: The rough bronze body and aluminum wheel resist atmospheric corrosion and mechanical wear in mechanical rooms.
• Superior Sealing: Equipped with Teflon (PTFE) packing and EPDM gaskets to prevent hazardous leaks and maintain accurate sight glass readings.
• Field Serviceable: Features a 1/4" NPT drain port for routine sediment flushing and system maintenance.

What size sight glass is compatible with the Conbraco 20-104-03?
This valve set is designed to accommodate a standard 5/8" outer diameter (O.D.) glass tube. Ensure the glass length is cut to match your specific tank center-to-center dimensions.

Are the guard rods included with this specific model?
While the 20-100 series supports them, the 20-104-03 is often supplied as the valve set only. Always verify if your specific installation requires additional steel guard rods for glass protection.

Can this valve be used for steam applications?
Yes, it is rated for saturated steam environments up to 125 PSI at 350°F, making it ideal for low-pressure boiler water level monitoring.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.