ERV-Rubber expansion joint Type 1 Construction type R

The HKS rubber expansion joint Type 1 Construction type R is suitable for water, drinking water (certifications DVGW W 270 and ACS), cold and warm process water, sea water, coolant (also with chemical additives for water treatment), weak acids and alkalis, saline solutions, technical alcohols, esters and ketones.

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

Composition and qualities
Nominal widths	DN25 to DN1000
Tempature range	(medium dependent) -40 °C to +100 °C briefly to +120 °C
Inner liner	Butyl (IIR) / EPDM seamless poor diffusion
Reinforcements	PA textile cord rubberised butyl
Outer liner	EPDM ozone resistant heatproof
Electrical Properties	electrically conductive
Demarcation	red ring DN .. PN .. date of manufacture
Flanges	hinged DIN PN 10/16 steel (S235JR) galvanised integrated rubber bead (self-sealing)