PVC 80 fittings for use with chemical processing, industrial plating, chilled water distribution, deionized water lines, chemical drainage and waste water treatment systems. Design Standards - PVC (Polyvinyl Chloride) conforms to ASTM D-1784 Class 12454-B, Formerly Type 1, Grade 1 - Joined by solvent cementing, threading or flanging - Maximum service temperature 140_ F. PVC schedule 80 fittings NSF approved. Meets all applicable ASTM standards.