2. The Inside of the stainless steel bellows is welded to the stem to prevent process fluids from corroding the stem, and through automatic hobbing welding, a metal barrier is formed between the fluid medium and the atmosphere to ensure that the stem is designed for zero leakage.,porntubw
Bellows Sealed Globe Valves designed for various applications with inflammable, explosive, volatile, toxic or aggressive characteristics to provide the highest fugitive emission protection.,live xxx cam
Full safety sealing system with multiple-walled bellows, gland packing, metal back seat, and position indicator.,dick photo
ww sxe video,Two-part rising stem design separates the upper and lower stem from each other which prevents bellows from torsion.
fastfuck,For various media with inflammable, explosive, volatile, toxic or aggressive characteristics, whose emission into the atmosphere must be prevented.