104-831HC B&K ANTI-SYPHON HYDRNT 1/4TURN 1/2X14" 2003157

The B&K 104-831HC Anti-Siphon Frost-Free Sillcock is a professional-grade hydrant engineered for year-round performance in plumbing and mechanical installations. Featuring a 1/4-turn operating mechanism and an integrated anti-siphon vacuum breaker, this unit prevents backflow contamination while allowing dependable water service through exterior wall penetrations. Constructed from chrome-plated brass with a 14-inch long shank, it ensures corrosion resistance, durability, and compliance with plumbing codes governing frost-free hydrant assemblies.

Details

• Model Number: 104-831HC
• Manufacturer: B&K
• Product Type: Anti-Siphon Frost-Free Sillcock
• Part Number: 2003157
• Nominal Size: 1/2 inch
• Connection Type: Male Thread x Solder End
• Operating Mechanism: 1/4-Turn Ball Valve
• Shank Length: 14 inches
• Material: Chrome-Plated Brass Body
• Feature: Integral Anti-Siphon Vacuum Breaker
• Design: Frost-Free with Interior Shutoff to Prevent Freezing
• Application: Exterior wall-mounted water supply for residential and commercial systems
• Compliance: ASSE 1019 and CSA B125 certified; meets UPC and IPC code requirements

Professional Specifications

The 104-831HC sillcock is designed with a 1/4-turn ball valve mechanism for rapid shutoff and reliable operation under varying system pressures. The integral anti-siphon device prevents reverse flow and contamination of the potable supply line. Its 14-inch shank extends through standard wall depths, positioning the valve seat inside the thermal envelope to prevent freezing. The body is machined from chrome-plated brass for corrosion resistance and long service life. Both male threaded and solder connections are provided for versatile installation in copper or mixed piping systems. The valve stem incorporates non-rising, self-draining design characteristics consistent with frost-free performance requirements.

Summary

The B&K 104-831HC 1/2 inch Anti-Siphon Frost-Free Sillcock delivers a code-compliant, durable, and corrosion-resistant solution for exterior hydrant applications. With its 1/4-turn operation, 14-inch shank, and integrated backflow protection, it ensures professional-grade reliability and ease of installation in plumbing systems subject to freezing conditions.