ERV-Rubber expansion joint Type 1 Construction type W

The HKS rubber expansion joint Type 1 Construction type W is suitable for foods as well as oleiferous and fatty foodstuffs. It is not approved for drinking water. The inner rubber conforms to German food law.

HKS type 1 rubber expansion joint, W model, with rotatable galvanised steel flanges with support collar
HKS rubber expansion joint type 1 model W

Composition and qualities

Nominal widths
  • DN25 to DN600
Tempature range
  • (media dependent) -20 °C to +90 °C
  • briefly to +100 °C
Inner liner
  • light NBR
  • seamless
  • wear-resistant
Reinforcements
  • PA textile cord
Outer liner
  • Chloroprene (CR)

Electrical Properties

  • electrically insulating
Demarcation
  • white ring
  • DN ..
  • PN ..,
  • date of manufacture
Flanges
  • hinged, DIN PN 10/16
  • steel (S235JR)
  • galvanised and yellow chromate