The end ring is made by ductile iron material , sleeve is made by ductile iron or welded steel.
The gasket is EPDM material for drinkable water or NBR material for oil / industrial pipe line.
The surface with fusion bond epoxy or polyesrter coating which is suitable for drinkable water.
The fastener is carbon steel galvanzied.
Available in the sizes: DN 40 to DN600