Description
Ensure smooth maintenance and reliable operation of your hydronic heating system with the Caleffi 561402A Service Check Valve — a compact and durable solution designed to prevent backflow and simplify servicing of air vents or expansion tanks. Trusted by HVAC professionals, this brass check valve is ideal for use with Caleffi air separators and various hydronic components.
Key Features
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Backflow Prevention: Keeps fluid flowing in only one direction to protect your system from unwanted reverse flow and potential damage.
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Service-Friendly Design: Allows easy removal of an automatic air vent or expansion tank without purging or draining the entire system — saving time and effort during maintenance.
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Standard ½″ NPT Connections: Male × female NPT connection ensures compatibility with common hydronic components, including Caleffi DISCAL® air separators
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Durable Brass Construction: Built for long-lasting performance and corrosion resistance in demanding boiler and heating system environments.
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Robust Pressure & Temperature Ratings: Rated for up to 150 psi working pressure and suitable for typical hydronic system temperatures.
