Conbraco 26-304-28 Gauge

The Conbraco 26-304-28 is an industrial-grade 1/2" Male NPT compression gauge cock engineered for high-pressure isolation and fluid level monitoring in demanding HVAC and boiler environments. Constructed from polished brass, this tri-cock valve features a robust soft metal seat and a professional stuffing box design to ensure a reliable, leak-free seal even under thermal cycling. Specifically rated for service up to 250 PSI at 400°F, it is a standard choice for contractors managing expansion tanks, liquid storage vessels, and steam heating specialties. The integrated aluminum wheel provides a heat-resistant manual override, allowing for precise control and simplified maintenance in tight mechanical spaces. Designed for longevity and compatibility with standard NPT piping, this Apollo Valves component is a critical safety and diagnostic tool for ensuring accurate instrument readings and safe system isolation during routine inspections.

• High-Temperature Durability: Rated for 400°F, making it suitable for steam and high-temp water systems.
• Pressure Integrity: Engineered to hold up to 250 PSI, providing a wide safety margin for most commercial applications.
• Leak Prevention: The soft metal seat and stuffing box allow for field adjustments to maintain a tight seal.
• Corrosion Resistance: Polished brass body and aluminum handle resist oxidation in damp mechanical rooms.
• Standard Fitting: 1/2" MNPT connection ensures easy replacement and integration into existing gauge glass sets.

• What is the primary application for the 26-304-28? This gauge cock is primarily used for draining expansion tanks or as an isolation valve for liquid level indicators and pressure gauges.
• How do I maintain the stuffing box? If a small leak develops at the stem, the packing nut can be tightened slightly to compress the soft metal seat; if leaking persists, the packing should be replaced.
• Is the aluminum wheel suitable for high-heat areas? Yes, the aluminum construction is designed to dissipate heat better than plastic alternatives, though technicians should still use appropriate PPE when operating high-temperature valves.

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.