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Emerson Keystone Figure 990/920 Resilient Butterfly Valve

Category:Keystone

Keystone Butterfly Valve Figure 990 920

Detail

1.Descreption

    A split body thin disc valve for high flow and modulating serviceFigure 990 – Wafer body designFigure 920 – Lugged body design


2.Features

  • * bstruction to flow, resulting in highest Cv, lowest pressure drops and best control characteristics.

  •  * Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and tight shut-off.

  •  * Triple function, resilient seat isolates body and stem from line media, provides drop-tight shut-off of line media at full-rated pressure and provides positive flange sealing, eliminating the need for flange gaskets.

  •  * Heavy duty, corrosion resistant top bushing provides upper stem support, absorbs actuator sideloading and extends valve cycle life.

  •  * Bi-directional, self-adjusting double V-cup stem seals prevent external contaminants from entering the valve.

  •  * Split body design enables easy field replacement of seat and disc/stem and permits direct mounting of Keystone actuators without the use of couplings or brackets.

  • 3.Specifications

  •   Certification: CRN

  •   End Connection: Wafer, Lip seal

  •   Application: Automotive, Beverages, Biofuels, Blowers, Brewing, Initial Food Processing, Product Blending, Winemaking, Processed Foods

  •   Material: 316 Stainless Steel, Buna-N, Teflon, Super Duplex, Monel, Hastelloy, Epdm Rubber, Duplex, Cast Iron, Ductile Iron, Titanium

  •   Operating Temperature: Up to 250 F (120 C)

  •   Pressure Class: ASME

  •   Process Connection Type: 150RF

  •   Seat/Seal Type: Resilient

  •   Shutoff Class: Zero Leakage

  •   Standards: ASME B16.34, API 609

  •   Valve Size: NPS 1-1/2 / DN 40, NPS 14 / DN 350, NPS 16 / DN 400, NPS 8 / DN 200, NPS 18 / DN 450, NPS 2 / DN 50, NPS 20 / DN 500, NPS 6 / DN 150, NPS 10 / DN 250, NPS 1 / DN 25, 5 inch, NPS 4 / DN 100, NPS 12 / DN 300, NPS 2-1/2 / DN 65, NPS 3 / DN 80

  •   Valve Size Standard: NPS

  •   Valve Type: Butterfly

  •   Media:Specialty Gases, Liquids, Air, Inert Gas, Water, Air

  •   Stem:O-ring

4.How to order

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