Bolts kit for Alfa 55 Fusible plug 1/2 GAS 145°C ELASTIC ELEMENT R6 YED1/2 145 YED1/2 180 M18x1, 5 - 120°C; Rotoflexi coupling FR 7 - (flange F + rubber element R7) Rotofluid Beta 75 X 210 ALFA 65 K02 D80 fusible-trip-plug ½“ GAS 145 BD315-WC80/60 RED 145 LRV-5 LRV-3 LRV-4 ALFA 40P K01-LRV4