KEYSTONE FIGURE 990 RESILIENT SEATED BUTTERFLY VALVE 

WARNING 
Not for end of line use.

Valve Handle Not Included

Orders for multiple valves may take a day or two longer for us to package.

GENERAL APPLICATION 

Figure 990 and 920 valves are used when modulating service or corrosion resistance is required. Heavy duty applications include food and beverage, pharmaceutical, pulp and paper, mining, oil and gas and power industries.  Available with PTFE lining for light corrosive services and rubber lining for light abrasive services.

FEATURES

• 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 droptight 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.

FLANGE STANDARD

Figure 990 is a resilient-seated, wafer-style, butterfly valve suitable for installation between ASME 125/150 and PN 10 and PN 16 flanges. Figure 920 provides drilled and tapped lugs around the valve body, compatible with ASME 125/150, PN 10/16 and BST'E flange standards.

TECHNICAL DATA

Size: DN 200, NPS 8", Wafer style
Pressure rating: 10 bar, 150 psi 
Flange accommodation: ASME 125/150, AS 2129 Table E, PN 10/16 BST E

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, Epdm Rubber, Cast Iron
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 8 / DN 200
Valve Size Standard NPS
Valve Type Butterfly
Media Specialty Gases, Liquids, Air, Inert Gas, Water, Air
Stem O-ring