Conbraco 21-104-03 Valves
The Conbraco 21-104-03 is a professional-grade water gauge valve set designed for reliable fluid level monitoring in commercial boiler and tank applications. Constructed from high-quality rough bronze, these 1/2" NPT male valves feature extended shanks to facilitate easier installation through thick insulation or vessel walls. The assembly utilizes an EPDM glass seal and Teflon stem packing to ensure leak-free performance under thermal cycling. Rated for 125 PSI at 350°F and 300 PSI at 100°F, this Apollo valves set is built to withstand rigorous mechanical room environments. The aluminum type wheel provides a tactile, heat-resistant grip for precise manual control. Technicians typically specify the 21-104-03 series for its robust steam boiler water gauge compatibility and its ability to maintain secondary containment integrity in high-pressure hydronic systems. This component ensures accurate visual diagnostics while meeting standard industrial pressure vessel requirements.
Key Benefits:- High-Pressure Tolerance: Rated for 300 PSI at ambient temperatures, making it suitable for high-head pumping systems.
- Chemical Resistance: Equipped with Teflon stem packing and EPDM seals to prevent degradation from common water treatment chemicals.
- Extended Shank Design: Simplifies mounting on insulated tanks without the need for additional pipe nipples.
- Durable Construction: Rough bronze body resists dezincification and corrosion in harsh boiler feedwater environments.
- Manual Precision: Aluminum handwheel ensures reliable operation and longevity compared to plastic alternatives.
What is the maximum operating temperature for these valves?
The Conbraco 21-104-03 is rated for heavy-duty service up to 350°F at 125 PSI.
Are these valves compatible with glass or plastic sight tubes?
These valves are designed to secure standard 5/8" OD glass tubing using the integrated EPDM seals for a pressure-tight fit.
Do these valves include a drain cock?
Yes, the lower valve typically permits the installation of a drain valve for flushing sediment and clearing the sight glass.
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.
Original: $148.62
-65%$148.62
$52.02Product Information
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Description
The Conbraco 21-104-03 is a professional-grade water gauge valve set designed for reliable fluid level monitoring in commercial boiler and tank applications. Constructed from high-quality rough bronze, these 1/2" NPT male valves feature extended shanks to facilitate easier installation through thick insulation or vessel walls. The assembly utilizes an EPDM glass seal and Teflon stem packing to ensure leak-free performance under thermal cycling. Rated for 125 PSI at 350°F and 300 PSI at 100°F, this Apollo valves set is built to withstand rigorous mechanical room environments. The aluminum type wheel provides a tactile, heat-resistant grip for precise manual control. Technicians typically specify the 21-104-03 series for its robust steam boiler water gauge compatibility and its ability to maintain secondary containment integrity in high-pressure hydronic systems. This component ensures accurate visual diagnostics while meeting standard industrial pressure vessel requirements.
Key Benefits:- High-Pressure Tolerance: Rated for 300 PSI at ambient temperatures, making it suitable for high-head pumping systems.
- Chemical Resistance: Equipped with Teflon stem packing and EPDM seals to prevent degradation from common water treatment chemicals.
- Extended Shank Design: Simplifies mounting on insulated tanks without the need for additional pipe nipples.
- Durable Construction: Rough bronze body resists dezincification and corrosion in harsh boiler feedwater environments.
- Manual Precision: Aluminum handwheel ensures reliable operation and longevity compared to plastic alternatives.
What is the maximum operating temperature for these valves?
The Conbraco 21-104-03 is rated for heavy-duty service up to 350°F at 125 PSI.
Are these valves compatible with glass or plastic sight tubes?
These valves are designed to secure standard 5/8" OD glass tubing using the integrated EPDM seals for a pressure-tight fit.
Do these valves include a drain cock?
Yes, the lower valve typically permits the installation of a drain valve for flushing sediment and clearing the sight glass.
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.
