Conbraco 50-GB8-A1 Valve

The Conbraco 50-GB8-A1 is a professional-grade 2" FNPT gas ball valve engineered for high-capacity main shutoff applications in commercial and industrial HVACR systems. Constructed from rugged ASTM B584 bronze, this 2-piece gas valve features a full-port design that ensures minimal pressure drop while supporting a massive heat load of up to 14,741,000 BTU/hr. This model is specifically equipped with a 1/4" NPT pilot tapping, allowing technicians to easily integrate pilot lines or pressure gauges directly into the main burner gas line without additional tees or fittings.

Built for reliability in low-pressure gas service, the 50-GB8-A1 is rated for 1/2 PSI applications and is compatible with natural gas, LP gas, and mixed gas media. The assembly includes a chrome-plated brass ball and reinforced PTFE seats for bubble-tight shutoff and superior corrosion resistance. For space-constrained installs, the die-cast zinc tee handle provides a compact footprint compared to standard lever options, while the reversible handle design offers localized flexibility for the installer. This American-made gas shutoff meets ANSI Z21.15 and CGA 9.1 standards, making it the go-to choice for heavy-duty gas line installation and equipment isolation.

• High-Capacity Throughput: Massive 14.7M BTU/hr rating suitable for large-scale boilers and industrial furnaces.
• Integrated Pilot Tap: Factory-machined 1/4" NPT tapping simplifies pilot light connection and system testing.
• Full Port Construction: Maximizes flow efficiency and eliminates turbulence in high-demand natural gas systems.
• Durable Material Profile: ASTM B584 bronze body and PTFE seats ensure long-term performance and chemical compatibility.
• Contractor-Friendly Design: Features a reversible tee handle for easy operation in tight mechanical rooms.

Is this valve suitable for high-pressure gas lines?
No, this specific model is designed and certified for low-pressure gas applications up to 1/2 PSI. For high-pressure requirements, verify the specific PSI rating of your system before installation.

What is the purpose of the 1/4" NPT tapping?
The tapping is used to connect pilot burner lines or to install a pressure gauge for monitoring gas line pressure, saving the technician time during the rough-in phase.

Can I use this valve for propane (LP) applications?
Yes, the Apollo 50-GB Series is fully compatible with natural gas, manufactured gases, and liquefied petroleum (LP) gas-air mixtures.

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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.