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IMI Norgren
N08 - Non-Return (Check) Valve
Reliable check valve providing reverse flow protection for critical process applications.
Provides reliable reverse flow prevention with a robust stainless steel construction and bubble-tight sealing.
Offers flexible lift pressure options from 0.2 to 3 barg, ensuring compatibility with various system requirements.
Withstands extreme conditions with helium leak testing, corrosion-resistant materials, and high-pressure capability.
Features
The N08 Non-Return Valve is a robust check valve designed for high-pressure applications requiring secure reverse flow prevention. Built with a single-piece stainless steel body, it ensures durability and resistance to extreme environments. The valve operates with a standard lift pressure of 1 barg, with optional settings down to 0.2 barg for sensitive applications. It supports both gas and liquid media, with helium leak testing available for high-integrity sealing. With port sizes from 1/4” to 1” (ISO G/NPT), the N08 is widely used in the nuclear, defence, marine, and industrial sectors for compressors, pumps, filters, and dryer systems.
Key features
Stainless steel single-piece body
Port sizes: 1/4” to 1” (ISO G/NPT)
Max inlet pressure: 413 barg
Standard lift pressure: 1 barg (options: 0.2 – 3 barg)
Bubble-tight sealing, helium leak tested (optional)
Suitable for gas and liquid media
Operating temperature: -35°C to +100°C (extended range available)
Flow coefficient (Kv): 0.28 – 5.33 (size dependent)
Spring: phosphated and oiled steel
Compact and lightweight design
Specifications
Ambient Temperature (°C)
-35 to 120
Maximum Working Pressure (barg)
413
Material
Stainless Steel 316
