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STEFFCA’s rubber-steel gaskets consist of an EPDM or NBR elastomer part along with a core of steel. The rubber part is firmly vulcanized to the core of steel in order to add stability to the gasket.
The ring in the core of the gasket ensures the absorption of good surface pressure and supports the centering of the gasket in the flange.
Rubber-steel gaskets are used in flange systems to seal water, wastewater, gas, air, acids, and alkaline solutions.
The EPDM versions are approved according to the current elastomer guideline ELL and W270 and can therefore be installed in drinking water applications.
The NBR versions are approved for use in the gas sector and meet the requirements of DVGW
certification DIN EN 682.