NOSHOK, Inc. 700 Series Block & Bleed Needle Valve 704

These valves allow 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 maximum) Replaceable Delrin® seat and straight through porting for bi-directional, 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 Viton® o-ring seal and Teflon® back-up ring below the stem threads to protect from corrosion and galling; Teflon® or Grafoil® packing optional All stem threads 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 Bonnet lock pin to prevent accidental loosening Vinyl bonnet and stem dust cap 0.187 inch orifice size Optional panel mount bonnet and panel nuts 0.090 bleed hole located on the bottom is controlled by a 1/4-20 UNF-2B bleed screw