Expansion bellows 3/4 inch (DN 20) nominal bore 6 inch over all length, stainless steel corrigated flexible tube of ANSI 321 or equivalenthaving 40-42 convolution per foot fitted each and with 1 inch BSPT BS21 mild steel fixed male connector .
Movement + 25 mm from center with last 20,000 cycles without any leakage or distortion.
86591.[EG]
埃及求购膨胀节(Expansion Bellows 3 / 4 Inch) 
