NOSHOK, Inc. 2170 Series 2-Valve Needle Valve 2172

Features & Benefits Combine isolating and venting in a single valve, eliminating the need for tubing and fittings Block valve isolates the downstream process fluids, and the bleed valve exhausts upstream fluids enabling instruments to be removed without disturbing the permanent piping installation The 1/4" NPT vent plug is located 90° to the left may be removed and replaced with exhaust piping to direct the fluids to a safe location 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability 2170 Series soft seat valves have 6,000 psi pressure rating (@ 200°F maximum) 2170 Series valve also features a 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