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IMI NH
Two-way Ball Valve
Nuclear-grade 2-way ball valve with N and NPT stamps for severe service applications.
N and NPT stamps ensure compliance with nuclear industry standards.
Floating ball design provides reliable bubble-tight shutoff at all pressures.
3-piece design enables maintenance without full valve removal.
Features
The IMI NH 3-piece 2-way ball valve is designed for severe service applications in nuclear power plants, providing reliable isolation and long service life. It operates in high-radiation environments, ensuring leak-tight shutoff with a floating ball design. Available in ½” to 8” sizes with ANSI ratings from 150 to 1500, it features carbon or stainless steel bodies, manual, pneumatic, or electric actuation, and various end connections. The N and NPT stamped design meets ASME qualifications, while radiation-resistant seats lower torque and improve sealing performance. The 3-piece design allows easy maintenance without valve removal.
Key features
Designed for nuclear applications
ANSI Class 150-1500
½” to 8” sizes
Floating ball design
3-piece body
Stainless/carbon steel
N and NPT stamped
Manual, pneumatic, or electric
Specifications
Fluid Types
Liquid
Gas
Water
Steam
Port Size (")
0.5 to 8
Maximum Working Pressure (barg)
420
Material
ASME SA 105M
ASME SA 182 F316M
Design Codes
ASME Section III
ASME B16.34
Temperature Limits (°C)
-45 to 93
Certification
ASME Section III
