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IDF ( International Dairy Federation ) sometimes referred to as ISS, ( International Sanitary Standard )
    was introduced in the Sixties as the successor to RJT because of its crevice free assembly. It can be recognised by the wide hexagon nut or T section joint ring. The joint ring locates on both liner and male part but does not tend to stay in place when the union is disassembled, and can prove awkward. In cases where the union is dismantled frequently, the use of the L section joint ring will alleviate the problem as the joint ring will locate on one half IDF union parts conform generally to BS 4825 part 4
    Crevice free
    16 Bar working pressure
    316 SS wetted parts
    wide range of seal materials available, Nitrile, Silicone, EPDM, PTFE
    size range 1" – 4"