-LINE is used in applications where additional protection is required. J Line is not insulated or heated. J-Line tubing is ideal for pneumatic and hydraulic applications. Industry standard tubing coated with OBrien SV47 polymer provides increased protection cushioning the tube against wear from vibration. J-Line is supplied in long continuous coils that eliminate intermediate fittings every twenty feet (six meters). This reduces the number of potential leaks points in a single tubing run from 50 to over 90%. UsesInstrument airPneumatic process control linesMunicipal water wellsDown-hole chemical injectionChemical injectionSeal water feed linesDirect burialWindblown sand