High profile international aerospace and automotive companies have already made the switch to Zinc Nickel plating for their components over the last decade, and now NOSHOK is experiencing excellent results with salt spray (fog) corrosion testing on samples of their valve products using Zinc Nickel (ZnNi) plating.
Due to these impressive results, all NOSHOK needle and manifold valves will now utilise this material as standard plating to withstand and endure harsh environments.
In a certified test by an independent lab, two samples were subjected to 1000+ hours of exposure to a 5% salt spray (fog) environment in a test chamber operated and maintained in accordance with ASTM B-117-07a.
After only 21 hours, the Electroless Nickel plated sample showed significant corrosion. The Zinc Nickel plated sample, however, showed no visible corrosion on the part after the 1000+ hours of exposure.
Internal tests yielded the same results - after being submerged for 3,500 hours in a 10% salt solution, the Zinc Nickel plated valves far outperformed the Electroless Nickel and Cobalt plated valves in terms of corrosion resistance.
In addition to its excellent corrosion resistance, Zinc Nickel plating provides increased deposit hardness, which results in extended wear resistance and longer service life. It is also WEEE and RoHS compliant.
NOSHOK vavles with this new Zinc Nickel plating are available from AMS Instrumentation and Calibration .