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  • Available in block, single flange, or double flange connection for remote or
    direct installation
  • Designed for use with differential pressure transmitters incorporating
    two isolation valves and an equalizing valve in differential pressure
    measurement
  • 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance
    and reliability
  • 3010 Series hard seat valves have 10,000 psi pressure rating @ 200 °F
  • 3110 Series soft seat valves have 6,000 psi pressure rating @ 200 °F
  • 3110 Series soft seat valves also feature a replaceable Delrin® seat, and straight through porting for bidirectional, high capacity flow and easy
    roddable cleaning
  • 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 Grafoil® packing optional
  • 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 caps for bonnets and stems (non-packing)


*If a packing option is chosen, maximum pressure rating is 6,000 psi.  Refer to the "Pressure vs. Temperature: Packing Style with Compatible Fluid" .pdf on the right-hand side of this page.
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Item #

Item Name

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N/A 1/2" NPT Female - 1/2" NPT Female, Steel $201.61 Add To Cart
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N/A 1/2" NPT Female - 1/2" NPT Female, 316 Stainless Steel $312.87 Add To Cart
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N/A Flange - 1/2" NPT Female, Steel $215.69 Add To Cart
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N/A Flange - 1/2" NPT Female, 316 Stainless Steel $365.60 Add To Cart
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N/A Flange - Flange, Steel $215.69 Add To Cart
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N/A Flange - Flange, 316 Stainless Steel $365.60 Add To Cart
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