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