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Keystone BrewSeal Butterfly Valves
BrewSeal Butterfly Valves
Resilient seated Butterfly valves DN 40 - 800 wafer and lugged versions, optimized for the food and beverage industry
Keystone BrewSeal Butterfly Valves

Specs

Certifications
PED
End Connection
Lugged, Wafer
Application
Beverages, Brewing
Material
Cast Iron, 316 Stainless Steel, Epdm Rubber, Teflon
Operating Temperature
Less than 150 C
Pressure Class
PN
Process Connection Type
PN16
Seat/Seal Type
Resilient
Shutoff Class
Zero Leakage
Valve Size
NPS 4 / DN 100, NPS 3 / DN 80, NPS 24 / DN 600, NPS 2-1/2 / DN 65, NPS 2 / DN 50, NPS 18 / DN 450, NPS 16 / DN 400, NPS 6 / DN 150, NPS 20 / DN 500, NPS 10 / DN 250, NPS 1-1/2 / DN 40, NPS 12 / DN 300, NPS 8 / DN 200, NPS 14 / DN 350
Valve Size Standard
DN
Valve Type
Butterfly
Media
Liquids
Stem
O-ring

Features

  • Top bushing absorbs actuator side thrust loads.
  • Dirtscraper prevents moisture penetrating into the shaft area.
  • Actuator flange acc. ISO 5211.
  • High solid, glossy, silicone free, paint system ensuring excellent corrosion resistance.
  • Body locating holes ease installation and centering between the flanges.
  • Sealed body splits prevent moistures from penetrating behind the seat (up to DN 300).
  • 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.
  • A molded-in O-ring in the seat for flange sealing eliminates the need for gaskets.
  • The thin disc provides the very minimum obstruction to flow (up to DN 300).

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