PFA (PLASTIC) LINED CHECK VALVES. THESE ARE DESIGNED TO PREVENT BACKFLOW THROUGH PIPELINE OR AS A SIMPLE SAFETY VALVE OPENING WHEN A CERTAIN PRESSURE HAS BEEN REACHED. THESE ARE AGAIN LINED IN PFA ARE CHOSEN AGAIN BECAUSE OF THEIR CHEMICAL RESISTANCE AND HIGH PURITY.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 8481 TAPS, COCKS, VALVES AND SIMILAR APPLIANCES FOR PIPES, BOILER SHELLS, TANKS, VATS OR THE LIKE, INCLUDING PRESSURE-REDUCING VALVES AND THERMOSTATICALLY CONTROLLED VALVES GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 848130 CHECK (NONRETURN) VALVES CN CODE 84813099 OTHER THAN OF IRON OR STEEL TARIC CODE 8481309990 OTHER THAN FOR USE IN CERTAIN TYPES OF AIRCRAFT ALSO CLASSIFIED IN ACCORDANCE WITH HSEN CHAPTER 84 HEADING 8481 ECJ C-199/09-SCHENKER