quick flange adaptor:
dn63/dn315 PE Quick adaptor is used in PVC/PE pipe. It has a gasket and a restained brass rings(alternative) .When you put the pipe in the adaptor body and fasten the bolts, the brass ring will fasten the pipe to avoid it pull out.
The body is made by ductile iron material
The gasket is EPDM and suitable for drink water or NBR for GAS
The body can Resin coated with 150 um .