NB-M4 UCI Nickel Plated Brass Ball Valve
Sku#: NB-M4
The UCI NB-M4 Ball Valve is a rugged, high-flow solution engineered for demanding fluid control applications. Manufactured from nickel-plated brass (CW 617N 12165), it combines corrosion resistance with mechanical strength, making it ideal for HVAC systems, plumbing networks, compressed air lines, and other industrial uses.
Featuring a 1/2" male x female NPT connection, the NB-M4 offers flexible installation and reliable shutoff capabilities. It’s equipped with a blowout-proof stem, chrome-plated brass ball, and precision PTFE seats with Viton® O-rings that ensure smooth, leak-free operation even in high-pressure environments.
With a pressure rating of 450 PSI WOG and maximum temperature capacity of 330°F, the NB-M4 delivers consistent performance under tough conditions. Measuring 2.16 inches in length, it’s designed for applications requiring both flow capacity and durability without sacrificing compact form.
This valve also includes a glass-reinforced nylon handle for secure manual operation and is MSS SP-110 compliant, meeting recognized industry standards for quality and reliability.
Key Features:
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Rugged nickel-plated brass construction for long-term corrosion resistance
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1/2" male x female NPT connection for installation versatility
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Blowout-proof stem ensures safe operation
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PTFE ball seats and Viton® O-rings provide excellent sealing and chemical resistance
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Rated for 450 PSI WOG and up to 330°F
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2.16" body length supports higher flow capacity
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MSS SP-110 compliant for standardized performance
Perfect for high-flow systems in industrial, mechanical, or utility environments, the UCI NB-M4 Ball Valve is built to deliver strength, reliability, and precision control.

