Conbraco Industries 20-250-00 Gauge

The Conbraco Industries 20-250-00 Gauge is a professional-grade heavy pattern bronze water gauge designed for reliable liquid level monitoring in high-demand environments. Engineered with 1/2" NPT male connections and a 5/8" OD x 12" length standard glass tube, this assembly is a staple for HVACR contractors maintaining industrial boilers and pressure vessels. The rugged ASTM B584 bronze construction ensures long-term corrosion resistance, while the automatic ball checks provide a critical safety fail-safe by preventing fluid discharge in the event of glass breakage.

For high-temperature performance, this sight glass gauge features EPDM glass seals and durable Teflon stem packing to maintain a leak-proof seal under thermal stress. The unit is rated for 200 PSI at 400°F and up to 400 PSI at 100°F, making it suitable for both steam and liquid applications. Operational control is handled by an aluminum type wheel and a 1/4" needle drain valve for precise maintenance and system blow-downs. When installing this Apollo Conbraco 20-250 series gauge, ensure your center-to-center dimensions align with the 12" glass specifications for proper fit and sealing.

Key Benefits

• Automatic Safety Shut-Off: Integrated ball checks prevent hazardous leaks if the sight glass is compromised.
• High-Pressure Durability: Rated for demanding 400 PSI environments with heavy-pattern bronze housing.
• Superior Sealing: Equipped with Teflon packing and EPDM gaskets for high-temperature resilience.
• Contractor Grade: Features a corrosion-resistant aluminum handwheel and standard 1/2" MNPT fittings for universal compatibility.

Common Questions

What is the purpose of the automatic ball checks?
The ball checks act as an internal safety mechanism; if the glass breaks, the pressure differential forces the balls against their seats to stop the flow of liquid or steam.

Can I use a longer sight glass with these valves?
While this specific kit includes a 12" glass, the 20-250 series valves can accommodate different glass lengths, provided you use the correct support rods for stability.

Is the drain valve included?
Yes, the lower arm is equipped with a 1/4" needle drain valve to allow for easy sediment removal and system testing.

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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.