Description
The Xylem 110190LF Reducing Valve, also known as the B‑38 model, is a dependable pressure regulation component designed to protect and optimize hydronic and boiler systems by maintaining consistent low pressure. Factory‑set to 12 PSI with an adjustable range of 10 – 25 PSI, this reducing valve ensures water pressure stays within safe limits to prevent system damage, improve efficiency, and extend the life of connected components. Built with a lead‑free brass body and internal check valve and cleanable strainer, it offers durability and reliable operation in residential, commercial, or industrial heating applications. Easy to install with standard 1/2″ NPT connections, the 110190LF is ideal for maintenance, repair, or system upgrades where precise pressure control is critical.
Key Features:
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Designed to regulate and maintain consistent low pressure in hydronic systems
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Factory set to 12 PSI with adjustable range from 10 – 25 PSI for flexibility
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Lead‑free brass construction offers corrosion resistance and durability
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Built‑in low inlet pressure check valve helps preserve system pressure
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Cleanable internal strainer prevents debris from entering the system
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Standard 1/2″ NPT connections for easy installation and replacement







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