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.