NOSHOK 800/850 Series Bleed, Hard Seat & Soft Tip Needle Valves

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  • Bleed valves provide a convenient means to relieve process pressures trapped between a shut off valve and the instrument
  • Uses the same bonnet assemblies of the 100/150 Series mini valves with an integrated single threaded body for insertion in vent port
  • Soft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
  • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability 10,000 psi hard seat pressure rating @ 200 °F
  • Available in Zinc-nickel plated Steel, electropolished Stainless Steel, and Brass
  • FKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite (800 Series only) packing optional
  • All stems are 316 Stainless Steel
  • All stem threads are rolled for strength and ease of operation
  • 0.159" bleed port
  • Patented body-to-bonnet, metal-to-metal seal is designed to significantly increase
  • the pressure range of the valve (U.S. Patent 7,758,014)

Spec Sheets: