Conbraco 20-350-00 Gauge

The Conbraco 20-350-00 is an industrial-grade square pattern water gauge designed for reliable liquid level verification in boiler and tank applications. Featuring 1/2" NPT male connections and a 5/8" OD x 12" length standard glass, this rough bronze assembly is built for the rigors of mechanical rooms. The integrated automatic ball checks provide a critical safety fail-safe, instantly seating to minimize fluid loss in the event of glass breakage. For maximum durability, the unit utilizes EPDM glass seals and reinforced Teflon stem packing to withstand high-temperature service. This gauge is rated for 200 PSI at 400°F and up to 400 PSI at 100°F, making it a standard choice for steam and high-pressure water systems. The heavy-duty aluminum type wheel ensures smooth operation even under pressure, while the inclusion of 1/4" needle drain capability allows for easy maintenance and blow-down procedures.

• Enhanced Safety: Automatic ball checks prevent hazardous steam or fluid discharge if the sight glass reaches a failure point.
• High-Temperature Performance: Rated for severe duty up to 400°F, ideal for low and medium-pressure steam boilers.
• Rugged Bronze Construction: The cast bronze body is corrosion-resistant and engineered for a long service life in demanding HVACR environments.
• Precise Seal Integrity: EPDM gaskets and Teflon packing offer superior resistance to thermal expansion and common boiler chemicals.
• Standard Fitting Compatibility: The 1/2" NPT shank allows for straightforward installation into standard boiler tappings without custom adapters.

What is the purpose of the automatic ball checks on the 20-350-00?
The ball checks are safety valves that automatically close the flow of water and steam if the glass breaks. This protects technicians from burns and prevents significant system water loss.

Can I use different gasket materials with this gauge?
Yes, while EPDM is standard for most water and steam applications, this series can be outfitted with Viton or graphite gaskets for specialized chemical compatibility or higher temperature requirements.

How do I calculate the replacement glass length for this model?
For the Conbraco 20-300 and 20-350 series, the standard glass length is typically the center-to-center dimension of the valves minus two inches.

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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.