STAUFF will be changing from a zinc/iron coating to a significantly higher-quality and corrosion-resistant zinc/nickel surface for a substantial part of its range of two-way and multi-way block ball valves for hydraulics.
The established zinc/nickel surface offers over 1,200 hours of resistance to red rust/base metal corrosion under practical test conditions in the salt spray chamber in line with EN ISO 9227. The chromium(VI)-free coating exceeds the highest requirements with regard to durability. It has a high-quality appearance similar to stainless steel while complying with all relevant ELV, REACH and RoHS guidelines.
The gradual changeover affects two-way ball valves from the BBV-2 series and the most commonly used three-way ball valves from the CBVL-3 and CBVSL-3 series, as well as CBVT-3 and CBVST-3 (with T-hole in the ball). These are available with BSP, NPT and UN/UNF internal threads, ORFS or 24° cone connections and are primarily used as manually operated shut-off valves in mobile and stationary hydraulics.
Ball valves from STAUFF are made from European quality steel with the option of full material traceability.