Needle valve 400

manualshut-offfor steam

100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability 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 or Graphite packing optional (certain NPT sizes only) 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) Materials - Zinc-nickel plated steel, electropolished 316 Stainless Steel Connections - 1/4", 3/8", 1/2", 3/4", 1", 1-1/4" & 1-1/2" NPT 7/16"-20 UNF (#4 SAE, J1926) Male-female, Female-female, in-line and angled configurations Pressure ratings* - 10,000 psi @ 200 °F for 1/4" NPT to 1/2" NPT 8,000 psi @ 200 °F for 3/4" NPT to 1-1/2" NPT Orifice size - 1/4" - 1/2" NPT: 0.187" 3/4" - 1-1/2" NPT: 0.438" Flow coefficient - 1/4" - 1/2" NPT: CV 0.44 3/4" - 1-1/2" NPT: CV 2.70 Steam seal & type - All 316 Stainless Steel stems with FKM o-ring and PTFE back-up ring below the threads, PTFE or Graphite packing optional for 1/4", 3/8" & 1/2" NPT only Options - Panel mountings, o-ring materials, handles, packings, regulating stem and stem tips Weight - Approximately 1.3 lb. up to 1/2" Approximately 4.5 lb. Large Hex, Female-Female Approximately 6 lb. Large Hex, Male-Female