Stainless Steel and Zinc-Nickel Coating
Corrosion-resistant cartridge models– including stainless steel hex body, titanium or brass adjust screw – are designated by "/AP" appended to the standard model code. Zinc-nickel cartridge models are designated by "/LH" appended to the standard model code. (Corrosion-resistant models were previously depicted with a P for Buna-N and W for Viton in the 7th position of the model code.)
In addition, Sun Hydraulics now offers zinc-nickel plating as standard on all solenoid-operated valves that use the 740 Series coils, including the FLeX Series valves. Because zinc-nickel is standard on these models, no additional "/LH" is required.
Below is an example of the model code structure:
Please check the Configuration area on each cartridge product page for available choices. Please consult us if the corrosion-resistant option is not available for your desired cartridge.