18 August, 2022

Increased corrosion resistance for Stauff ball valves

21 March, 2017

Stauff, the fluid technology specialist from Werdohl, 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 company announced this development in the run-up to the Hannover Messe trade fair in April.

Andreas Heinzen, product manager for ball valves at Stauff, explains: “With this change to the zinc/nickel coating, which has been standard for many others of our products for years, we are following the demands from numerous OEM customers and users, but also our own claim to increasingly supply steel line components with a standardised surface coating with the highest possible quality – all from one source.”

Over 1200 hours of resistance

The established zinc/nickel surface offers over 1200 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, as, for example, defined in the VDMA Standard Sheet 24576. 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 (with L-hole in the ball) 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.

Mixed deliveries possible during changeover period

Mixed deliveries are possible during the changeover period until the zinc/nickel version has become full standard for all products delivered. This creates no differences or even disadvantages for the installer or user with regard to storage, installation or operation.

Ball valves from Stauff are made from European quality steel with the option of full material traceability. The balls with hard chromium plating, which reduce friction and wear, usually have a full through hole corresponding to the nominal diameter of the line, so that no detrimental reduction in the diameter of the hydraulic line occurs. Free flow is also supported by the fact that no exposed threads are located in the medium passage. This reduces vibration, noise and heat generation in the system, ensuring full capacity of the machine.

Visit Stauff at the Hanover Fair: Hall 21, stand F27.


Buyers' Guide Search
Search for UK supplier by name
Browse by Product Group.
JUNE 2022 Issue To view a digital copy of the JUNE 2022 issue of Hydraulics & Pneumatics Magazine, click here.

APRIL/MAY 2022 IssueTo view a digital copy of the APRIL/MAY 2022 edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

July/August 2021 Annual Buyers' GuideTo view a digital copy of the JULY/AUGUST edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

BFPA YearbookTo read the latest BFPA Yearbook, click here
BFPA Training AcademyClick the image to go to the BFPA Training Academy website
Compressed Air & Vacuum Technology Guide 2018To read the official BCAS Compressed Air & Vacuum Technology Guide 2018 click here
Offshore Europe JournalOEE
Super Swivels
Impulse Automation Limited was established in 1960 and is based in the United Kingdom. We are an importer and distributor of mechatronic components used in a wide variety of industry sectors.Impulse Automation Limited
Hy-Pro FiltrationWEB LOCATOR