Product Description Compression Flange Adapter Pipe Connection compression fittings for low density and medium density polyethylene pipes (LDPE & MDPE pipes) for above and below ground use. Made by Unidelta Available in 50mm-110mm 16bar Pressure rated Metric PE Flange to NP16 Flange Pipe Connection compression fittings for low density and medium density polyethylene pipes (LDPE & MDPE pipes) for above and below ground use. Chemical Resistant WRAS Approved Click for Product Brochure