sitar / 121l040 supply, installation and commissioning of specialty gas lines , supply, installation and commissioning of specialty gas lines as per specifications enclosed , ¼” stainless steel 316l electro polished ( 10ra ) seamless tubes , gas sticks ( electro polished diaphragm valve and electro polished pressure regulator with gauge -30inhg-0-11bar and should have face-seal fittings ) , heat tracingand controller for boron trichloride gas lines , fittings ( face-sealfittings as required ) , stainless steel braided hose with fittings for liquid nitrogen supply from dewar to changeover unit ( hose length approx. 3mtrs ) and changeover unit to exhaust ( hose length 5mtrs ) . ( dn15 valve at dewar side and 3 / 8” compression fitting at changeover unit ) . vendor should verify the same and supply as required. , supports, clamps and labels , installation of above items , qualification & commissioning ( pressure decay test, helium leak integrity test, purge with high pure nitrogen gas and charging the lines with process gases )