... and clamp saddles are designed specifically for connecting PE pipes with an outside diameter of 20-110mm. They are fully compatible ... LDPE, HDPE, PE40, PE80 and PE100 pipes complying with EN12201, ISO4427, ISO14236, ISO13460, DIN 8074. They are normally used ... universal fittings can be used to connect systems using PE metric piping with existing pipes made of any material. PP Compression Fitting