Emerson Keystone Figure 990/920 Resilient Butterfly Valve

Product Specification

1. Description

    A split body thin disc valve for high flow and modulating service. Figure 990 – Wafer body design. Figure 920 – Lugged body design

2. Features

• obstruction to flow, resulting in the highest Cv, the lowest pressure drops and the 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