Drinking Water

Rubber articles form small but essential parts of supply systems for drinking water. Because of their unique properties rubber articles find various applications in the supply systems for drinking water. Apart from its chemical inertness rubber articles are flexible, resilient, mechanically strong and durable. Rubber articles are designed along two parameters: mechanical strength and physiological inertness. In food contact application rubber utensils have been used since long. In contrast to other materials and with a few exceptions rubbers are not used to store or carry drinking water but they are essential for joining and sealing the rigid parts of the water supply system. Therefore, the contact area of the majority of rubber articles of this type to drinking water is rather small. The existing national acceptance schemes categorize the rubber articles in contact with drinking water depending on the contact area and contact time.

The following rubber articles are currently used in contact with drinking water:

  • Gaskets and joints for combining metallic, plastic and cementitious pipes
  • Balloons of pressure equalizing systems
  • Membranes for pumps
  • Flexible hoses for railroad passenger cars, showers, outdoor installations, dish washing machines etc