PN21 Backing Flange Galvanised: 180mmBFG21180
Table D Backing Flange Stainless: 400mmBFS316D400
Table D Backing Flange Stainless: 560mmBFS316D560
ANSI 150 Backing Flange Stainless: 400mmBFS316A400
PN21 Backing Flange Galvanised: 560mmBFG21560
ANSI 150 Backing Flange Stainless: 1000mmBFS316A1000
ANSI 150 Backing Flange Stainless: 90mmBFS316A090