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NOSHOK 500 Series Soft Seat Valves

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  • Soft seat design is 100% Helium leak tested to 1 x 10-4 ml/s at 200 psi
  • 6,000 psi pressure rating (@200°F maximum)
  • Replaceable Delrin® seat
  • Straight through porting for bi-directional, high capacity flow and easy roddable cleaning
  • Blow out proof stem that provides a secondary stem seal in the full open position
  • Stem seal below the threads prevents thread contamination
  • Viton® O-Ring & Teflon® back-up ring stem seals
  • All 316SS stems (even in steel valves) for longer life
  • Stem and bonnet threads are rolled for greater strength
    and smoother 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 dust cap
  • .187 inch orifice size
  • Optional panel mount bonnet and panel nuts
  • Electroless Nickel plated finish on carbon steel valves
  • Electropolish finish on stainless steel valves
PART NUMBER CONNECTION MATERIAL
502 MFC 1/4" NPT Male-Female Steel
504 MFC 1/2" NPT Male-Female Steel
50402 MFC 1/2" NPT Male-1/4" NPT Female Steel
502 MFS 1/4" NPT Male-Female Stainless
504 MFS 1/2" NPT Male-Female Stainless
502 FFC 1/4" NPT Female-Female Steel
503 FFC 3/8" NPT Female-Female Steel
504 FFC 1/2" NPT Female-Female Steel
502 FFS 1/4" NPT Female-Female Stainless
503 FFS 3/8" NPT Female-Female Stainless
504 FFS 1/2" NPT Female-Female Stainless


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