The Automatic Ball Drip Valve is a key component in fire protection systems, designed to automatically drain residual water from the piping between a fire department connection (FDC) and the system’s check valve. This prevents water accumulation, pipe freezing, and corrosion, particularly in dry standpipe or wet riser systems exposed to freezing temperatures.
The valve functions through a spring-loaded ball mechanism that remains closed under system pressure but opens when pressure drops—typically after a fire department connection is depressurized—allowing trapped water to drain safely. Compact, durable, and maintenance-friendly, the ball drip valve ensures system reliability and compliance with fire codes such as NFPA 14 and BS 5041.
Key Features:
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Automatically drains water from FDC lines to prevent freezing and corrosion
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Spring-loaded ball design operates without external power or manual intervention
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Typically installed at the lowest point in the piping between check valve and FDC
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Available in brass, bronze, or stainless steel for corrosion resistance
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1/2″ NPT or BSP threaded connection for easy installation
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Maintenance-free operation with minimal moving parts
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Complies with major fire safety standards (e.g., NFPA, UL, FM, BS)
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Ideal for use in dry standpipe systems, wet risers, and fire pump test