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Keystone-K-figure 990 920 butterfly valve powered actuator

Keystone Figure 990/920 Butterfly Valve with Powered Actuator

Product Description

The Keystone Figure 990/920 is a split body, thin disc resilient seated butterfly valve complete with powered actuator, configurable by power source, size, function and more.

Charakterystyka

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 Powered Actuator
  • Direct mounting to all Keystone butterfly valves and ball valves.
  • Valve connection compatible with Keystone (imperial and metric) and ISO 5211.
  • Double Rack and Pinion design nullifies side loads on the pinion shaft, minimizing bearing wear and extending life.
  • Optimized product flow with standard mounted travel stops for valve position adjustment in open and close position (+/- 5° at each end).
  • Anodized aluminium body with electrostatic powder coating (ESPC) finish provides durable protection against corrosive environments.
  • Double acting and spring return versions available for cost effective and safe operation.
  • Up to 12 individual springs offer flexible torque range for both ball as butterfly valves.
  • Pre-compressed spring design and anti-blowout drive pinion means safe maintenance and operation.
Keystone F89 Pneumatic Quarter-Turn Actuator
  • Direct mounting to all Keystone butterfly valves and ball valves.
  • Valve connection compatible with Keystone (imperial and metric) and ISO 5211
  • Double Rack and Pinion design nullifies side loads on the pinion shaft, minimizing bearing wear and extending life.
  • Optimized product flow with standard mounted travel stops for valve position adjustment in open and close position (+/- 5� at each end).
  • Anodized aluminum body with electrostatic powder coating (ESPC) finish provides durable protection against corrosive environments.
  • Double acting and spring return versions available for cost effective and safe operation.
  • Up to 12 individual springs offer flexible torque range for both ball as butterfly valves.
  • Pre-compressed spring design and anti-blowout drive pinion means safe maintenance and operation.

Dane techniczne

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
Keystone F89 Pneumatic Quarter-Turn Actuator
Supply pressure
Up to 8.3 bar
Temperature
`-40°C to 150°C
Type
Quarter-Turn

Dokumenty i rysunki

Keystone Figure 990/920 Butterfly Valve
Emerson Powered Actuator
Keystone F89 Pneumatic Quarter-Turn Actuator