Description
Conbraco Industries 21-104-03 Rough Bronze Water Gauge Valve
The Conbraco Industries 21-104-03 is a heavy-duty rough bronze water gauge valve engineered for reliable performance in demanding hydronic and steam system applications. Featuring 1/2″ NPT male connections and extended shanks for easy installation in tight spaces, this valve delivers dependable shutoff and gauge isolation in both high-temperature and high-pressure environments.
Key Features
- 1/2″ NPT male connections for straightforward integration into existing piping systems
- Rough bronze body construction for exceptional corrosion resistance and long service life
- Extended shanks provide added clearance and ease of installation in confined areas
- EPDM glass seal ensures a reliable, leak-free connection at the gauge glass interface
- Teflon stem packing minimizes friction and provides a positive, long-lasting stem seal
- Aluminum type handwheel for comfortable, tool-free operation
Pressure & Temperature Ratings
- Rated at 125 PSI @ 350°F for high-temperature steam and hot water service
- Rated at 300 PSI @ 100°F for cold and ambient water applications
Applications
- Boiler water gauge glass isolation
- Steam system gauge connections
- Hydronic heating system gauge ports
- Industrial process piping gauge isolation
Why Choose the Conbraco 21-104-03?
Conbraco Industries has built a reputation for manufacturing valves that meet the rigorous demands of commercial and industrial HVAC, plumbing, and process applications. The 21-104-03 combines durable rough bronze construction with proven sealing technology — EPDM glass seals and Teflon stem packing — to deliver a valve that holds up under repeated cycling and elevated operating conditions. The extended shank design makes it especially well-suited for installations where gauge glass assemblies require additional standoff from insulated or oversized pipe runs.







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