Needle Valve, Hard Seat, 7/16-20 UNF 2B Female – 7/16-20 UNF 2B Female, 316 SS, 0.187 in. Orifice, Panel Mount 2 nuts, 1-3/8 Phenolic Handle. 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.
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