Conbraco 20-104-10-7 3/4 Water Gauge

The Conbraco 20-104-10-7 is a contractor-grade 3/4 inch water gauge set engineered for reliable liquid level monitoring in high-demand boiler and hydronic environments. This rough bronze water gauge assembly features a 1/2" NPT male connection and is equipped with a 5/8" OD x 7 3/4" length standard glass tube, providing a clear visual interface for fluid verification. Designed to meet ASME design requirements, the unit is constructed from heavy-duty ASTM B584 bronze to resist corrosion in steam service. The internal Teflon stem packing and EPDM glass seal ensure leak-free operation at elevated thermal cycles, with a performance rating of 125 PSI at 350F and 300 PSI at 100F. An included aluminum type wheel offers durable manual control, while the integrated needle drain valve in the lower arm allows for safe system blowdowns and maintenance without depressurizing the entire vessel.

Key Benefits:

• Heavy-duty rough bronze water gauge body for superior longevity in industrial steam boiler service.
• High-visibility sight glass with 5/8 OD allows for precise, real-time monitoring of liquid level verification.
• Robust Teflon stem packing provides high chemical resistance and prevents stem leakage under fluctuating pressures.
• Standard 1/2" NPT male connections ensure compatibility with most traditional boiler sight glass ports.
• Integrated 1/4" needle drain valve facilitates easy sediment removal and system glass cleaning.

Common Questions:

What is the maximum pressure rating for this water gauge?
This Apollo 20-100 series gauge is rated for 125 PSI at a maximum temperature of 350F, or up to 300 PSI at 100F for cold-water applications.

Does this set include guard rods?
While the assembly is compatible with copper guard rods to protect the tubular glass from impact, technicians should verify if rods are bundled or require separate sourcing based on the specific installation cage requirements.

Is the EPDM seal suitable for all fluids?
The EPDM glass seal is ideal for water and steam service; however, it is not recommended for use with petroleum-based oils. For oil-tank applications, a Viton or alternative synthetic seal may be required.

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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.