Plastica Alfa has been manufacturing Black Line compression fittings for about 25 years, known worldwide for the excellent value for money and long service life. Black Line fittings are used to connect polyethylene (LDPE, MDPE and HDPE) and PPR pipes to supply pressurized (up to PFA 16) and not pressurized fluids. They are especially used for drinking water supply in aqueducts and civil installations, irrigation, firefighting systems, geothermal systems, to convey waste and industrial water, compressed air.