Conbraco 24-351-00 Gauge

The Conbraco 24-351-00 Gauge is a professional-grade liquid level gauge engineered for high-pressure industrial and boiler applications. Featuring a robust rough bronze body, this assembly includes 1/2" NPT male connections and a 5/8" OD x 12" length high-pressure glass tube. Designed for reliability under thermal stress, it is rated at 250 PSI @ 400F and 500 PSI @ 100F, making it a staple for steam service and vessel monitoring. The internal automatic ball checks provide a critical safety mechanism by restricting flow in the event of glass breakage, conforming to ASME power boiler code requirements. This set is equipped with high-performance sealing materials, including a PTFE with Hypalon glass seal and braided PTFE with Aramid stem packing to prevent leaks at the packing gland. The composite plastic type wheel ensures smooth manual operation even in high-temperature environments, while the heavy-pattern construction stands up to the rigors of the mechanical room.

Key Benefits

• Automatic Safety Protection: Integrated automatic ball checks in both the upper and lower arms minimize hazard risks during structural glass failure.
• Superior Chemical Resistance: PTFE with Hypalon seals and Aramid-reinforced stem packing provide excellent compatibility with a variety of treated boiler waters and industrial fluids.
• High-Pressure Performance: Specifically designed for high pressure glass applications, maintaining integrity up to 500 PSI at ambient temperatures.
• Code Compliance: Conforms to ASME specified standards for automatic water gauges, ensuring suitability for regulated pressure vessel installations.
• Enhanced Durability: The rough bronze finish and heavy-pattern valve body resist corrosion and mechanical fatigue better than standard light-duty gauges.

Common Questions

How do the automatic ball checks operate in this gauge?
The ball checks are designed to remain unseated during normal operation to allow for accurate liquid level readings. In the event of a sudden pressure drop caused by glass breakage, the velocity of the escaping fluid forces the balls into the seats, significantly restricting the discharge of hot water or steam.

Is the glass tube and protector rod set included with the 24-351-00?
Yes, this specific model number typically denotes a complete set including the top and bottom valves, the 5/8" OD x 12" high-pressure glass, and four guard rods for physical protection against accidental impact.

Can this gauge be used for steam boiler applications?
Absolutely. This gauge is widely used by contractors for steam boiler service due to its 1/2" MNPT shank size and its ability to handle saturated steam pressures within its rated temperature curve of 400F.

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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.