Press connector systems with press connectors and pipes made of non-alloy steel 1.0308 (E235), in acc. with EN 10305-3, externally galvanised with a zinc layer thickness of 8-15 m (blue chromatised).Press connectorsAll sizes with SC-Contur - connections, which remain unpressed become visible when the system is filled. The SC-Contur is certified and fulfils the requirements of DVGW worksheet W 534, point 12.14, connectors with forced leakage.During leakage tests with water, Viega guarantees the identification of unpressed connections in the pressure range 0.1 MPa-0.65 MPa, in the case of a dry leakage test with compressed air or noble gases from 22 hPa-0.3 MPa.MarkingRed symbol (to prevent confusion with Sanpress Inox (stainless steel) articles) »Not for drinking water installations«Sealing elementsEPDM, black (ethylene-propylene-dien-monomer rubber),not resistant against hydrocarbon solvent, chlorinated hydrocarbon solvents, turpentine, petrol, FKM, dull blackDimensionsD38