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Keystone Figure 990/920 Resilient seated butterfly valve

Keystone™ Figure 990/920 resilient seated butterfly valve has a split body thin disc valve for high flow and modulating service.
Figure 990 - Wafer body design. Figure 920 - Lugged body design.

Chemical & Petrochemical Keystone Pulp & Paper

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Specifications
Features
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Certifications	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	API 609, ASME B16.34
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

One-piece, thin profile, disc stem provides minimum obstruction 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.

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Keystone Figure 990/920 Resilient seated butterfly valve

Any questions?

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Keystone Figure 990/920 Resilient seated butterfly valve

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