FF F316 bellow/Steel int.liner/Alu ext. The 1551 series metal expansion joint, with stainless steel bellow, aluminium outer cover, BSP female fitting, axial displacement for compatible common fluids and heating risers.
F321 bellow & liner The metal expansion joint series 1511, stainless steel bellow model, BW welding with steel nipples, PN16, axial displacement for common fluids compatible.
F321 bellow & liner/Steel flanges The metal expansion joint series 1521, with flanged bellow PN16, rotating steel flanges, stainless steel hydroformed bellow for common fluids compatible.