Emerson Keystone Figure 990/920 Resilient Butterfly Valve
Product Details
Product Description
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
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