Needle valve 700

manualfor controlbleed

Block & bleed design allows pressure to be bled off without disturbing the permanent piping installation, allowing quick and easy removal or replacement of instruments 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability 6,000 psi pressure rating @ 200 °F Replaceable Delrin® seat and straight through porting for bidirectional, high capacity flow and easy roddable cleaning PCTFE or PEEK soft seat optional Blow-out proof stem provides a secondary stem seal in the full open position FKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE packing optional All stems are 316 Stainless Steel All stem threads are rolled for strength and ease of operation One-piece bonnet with a metal-to-metal seal to the valve body below the bonnet threads Slotted spring pin to prevent accidental loosening Vinyl dust cap for bonnet and stem (non-packing) 0.090" bleed hole located on the bottom is controlled by a 1/4"-20 UNF-2A bleed screw Materials - Zinc-nickel plated steel, electropolished; 316 Stainless Steel* Connections - 1/4" & 1/2" NPT Male-female & Female-female configurations Pressure ratings - 6,000 psi @ 200 °F