For more than 30 years AVK GUMMI has manufactured components for use in drinking water supplies. Our experience in this field derives from many years of close co-operation with leading manufacturers of fittings, valves and pumps. The R&D department of AVK GUMMI uses this knowledge to develop rubber compounds with continuously improved properties.

The following factors are of decisive importance for the tightness and durability of a rubber sealing:

• Minimum permanent deformation
• Resistance to water treatment chemicals - e.g. ozone and chlorine
• Taste and smell neutrality

AVK GUMMI also serves other water related industries such as

• District heating
• Sewage
• Waste water treatment

AVK GUMMI co-operates with leading manufacturers of valves and fittings for district heating supplies. Here, there are different demands, but especially reliable sealings, optimum function, a long lifetime and temperature resistance are important factors. Resistance to inhibitors and friction lowering chemicals that are added to district heating water is needed.