They are used as gaskets and sandwiched between buttress ends in glass couplings
CAT. REF. | DN | D | D1 | d | L | |
GTR 25 | 25 | 62 | 33 | 3 | 5 | |
GTR 40 | 40 | 57 | 48 | 3 | 5 | |
GTR 50 | 50 | 70 | 59 | 3 | 5 | |
GTR 80 | 80 | 100 | 88 | 3 | 5 | |
GTR 100 | 100 | 134 | 119 | 4 | 5 | |
GTR 150 | 150 | 186 | 168 | 4 | 5 | |
GTR 225 | 225 | 260 | 236 | 4 | 5 | |
GTR 300 | 300 | 342 | 318 | 4 | 5 | |
GTR 450 | 450 | 537 | 490 | 6 | 5 | |
GTR 600 | 600 | 686 | 640 | 8 | 10 |