PIPE SIZE                                                          REF                                   REF         Â
Internal                External                2 hours (depth 50mm)                   4 hours (depth 100mm)
50mm            55mm                          PC  50/2                                   PC  50/4
65mm            72mm                          PC  65/2                                  PC  65/4
75mm            83mm                                               PC  75/2                                  PC  75/4
100mm                 110mm                                               PC100/2                                         PC100/4              Â
127mm                 130mm                                               PC127/2                                         PC127/4              Â
150mm                 160mm                                               PC150/2                                         PC150/4              Â
175mm                 180mm                                               PC175/2                                         PC175/4              Â
200mm                 210mm                                               PC200/2                                         PC200/4              Â
225mm                 235mm                                               PC225/2                                         PC225/4              Â
250mm                 260mm                                               PC250/2                                         PC250/4              Â
300mm                 310mm                                               PC300/2                                         PC300/4              Â
DOUBLE SIZES
.
TRUNKING SIZE Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â REF Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â REF Â Â Â Â Â Â Â Â Â Â Â Â
INTERNALÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2 hours (depth 50mm) Â Â Â Â Â Â Â Â Â Â 4 hours (depth 100mm)
190mm x   85mm                                                              PC  75/8/2                         PC  75/8/4
230mm x 120mm                                                              PC23/12/2                         PC23/12/4               Â