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Keystone-optiSeal figure 1417 butterfly valve

Keystone Optiseal Resilient Seated Butterfly Valve

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Product Description

The Keystone OptiSeal is a resilient seated butterfly valve for general purpose, food and beverage processing, industrial applications and chemical applications when configured with a PTFE lined seat, disc and stem.

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optiSeal figure 1417 butterfly valve
Powered Actuator
F89
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optiSeal figure 1417 butterfly valve
Manual Actuator
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Features

  • Top bushing absorbs actuator side thrust loads.
  • Actuator flange acc. ISO 5211.
  • High solid, glossy, silicone free, paint system ensuring excellent corrosion resistance.
  • Extended body neck allows pipe insulation.
  • Body locating holes ease installation and centering between the flanges.
  • Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and bubble-tight shut-off.
  • The seat is field replaceable and fully isolates the body and stem from the flow.
  • Primary stem sealing exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere.
  • A secondary shaft sealing provides back‑up safety.
  • No flange gaskets required.
  • High Cv value.
  • Top and bottom shaft bearings for optimized support and minimum friction in all body materials up to DN 300, except cast iron.

Specifications

Certifications
CUTR, SIL capable, PED
End Connection
Wafer, Lugged
Application
Winemaking, Beverages, Automotive, Air Circulation
Material
Super Duplex, Hastelloy, Epdm Rubber, Duplex, Cast Iron, Carbon Steel, Buna-N, 316L Stainless Steel, 316 Stainless Steel
Operating Temperature
Up to 250 F (120 C)
Pressure Class
PN
Process Connection Type
PN16
Seat/Seal Type
Resilient
Shutoff Class
Zero Leakage
Valve Size
NPS 10 / DN 250, NPS 8 / DN 200, NPS 6 / DN 150, NPS 4 / DN 100, NPS 3 / DN 80, NPS 2-1/2 / DN 65, NPS 1-1/2 / DN 40
Valve Size Standard
DN
Valve Type
Butterfly
Media
Liquids, Water, Hot Water, Liquid, Air
Stem
O-ring

Documents & Drawings