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  • Keystone Figure 990/920 Butterfly Valve with Manual Actuator
Keystone-K-figure 990 920 butterfly valve manual actuator

Keystone Figure 990/920 Butterfly Valve with Manual Actuator

Product Description

The Keystone Figure 990/920 is a split body, thin disc resilient seated butterfly valve complete with manual actuator, configurable as a handle or gear operator.

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Features

Keystone Figure 990/920 Butterfly Valve
  • 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.
Emerson Manual Actuator
  • ENGINEERED FOR RELIABILTY – Robust construction in a variety of materials with features such as full and life-long lubrication available.
  • FLEXIBLE CONFIGURATION – Where available with the type of manual actuator, the solution can be configured with adjustable travel stops, worm and quadrant style gearboxes and anti-clockwise operation.
  • SIMPLE INSTALLATION – Modular mounting concept for easy attachment to Emerson valves and can be mounted in most orientations.
  • CUSTOMIZABLE OPTIONS – Achieve reliable efficient isolation to match your specific application with many available optional extras including chain wheels, limit switches, floor stands and security features.

Specifications

Keystone Figure 990/920 Butterfly Valve
Material
316 Stainless Steel, Buna-N, Cast Iron, Ductile Iron, Duplex, Epdm Rubber, Hastelloy, Monel, Super Duplex, Teflon, 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 Type
Butterfly
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

Documents & Drawings

Keystone Figure 990/920 Butterfly Valve
Emerson Manual Actuator