Nickel-Aluminium Bronze (NAB) valves are most commonly used for seawater applications or where seawater or brine is present. In these applications it delivers a long service life, excellent wear properties and corrosion resistance; particularly where resistance to Chloride pitting is a requirement. Flowstar holds stock of Aluminum Bronze (NAB) Valves
What Is Nickel Aluminium Bronze (NAB)?
An alloy typically composed of: ~80% Copper (Cu), ~10% Aluminium (Al), ~5% Nickel (Ni), ~5% Iron (Fe).
Applications?
It is widely used in valve applications such as naval ships, submarines and the oil and gas industry, where valve industry standards and client require strength, longevity and reliability.
Why use NAB?
The lifespan and associated costs of using a NAB valve in seawater applications are economically superior to other solutions when considering added inspection, maintenance and service costs. You should also account for the whole valve replacement, typically required when other solutions are adopted.
Benefits
Excellent corrosion resistance: Ideal for seawater, brine, and saline conditions
High strength & toughness: Withstands pressure and impact
Biofouling resistance: Slows marine growth on valve surfaces
Spark resistance: Suitable for fuel or flammable environments
Long service life: Reduces maintenance in harsh marine settings