Gray cast iron is an economically and technologically attractive material for pumps – but its susceptibility to corrosion presents a challenge. Even a concentration of 150 mg of chloride ions per liter of water can cause significant damage.
To address this, Herborner Pumpen has developed the HPC coating, a solution that provides not only 100% corrosion protection but also noticeably improves hydraulic pump efficiency. This specially engineered thick-layer coating enables the use of gray cast iron, eliminating the need for more expensive materials such as bronze or stainless steel – a key advantage in terms of sustainability and efficiency.
How was this innovative pump coating developed? What specific benefits does it offer? Find out in the Whitepaper by Sascha Korupp, Technical Director at Herborner Pumpen.