Resilient Seated | Keystone

Series 61 Resilient Seated Butterfly Valve, 2" to 12"

Keystone Butterfly Valves, Wafer/Lugged, Resilient Seated, Keystone Series 61 Resilient Seated Butterfly Valve

Series 61W (wafer) and 61L (lug) are resilient seated butterfly valves suited for applications within the water; wastewater and general industrial markets.

Features & Benefits:

  • 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 stem area to atmosphere.
  • A secondary stem seal provides backup sealing.
  • Top and bottom inboard stem bearings for optimum support and minimum friction to prolong valve life.
  • Top bushing absorbs actuator side thrust loads.
  • Top seal prevents moisture penetrating into the stem area.
  • A molded-in O-ring in the seat for flange sealing eliminates the need for gaskets.
  • Extended body neck allows for pipe insulation.
  • Body locating holes ease installation and centering between the flanges.
  • Available approvals: PED (CE Mark), DNV, Lloyds.

Sizes: 2" to 12"
Pressure: 235 psi
End of line: 150 psi
Temperature: -40°F to +300°F
End Connection: ASME 125/150

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Technical Data Sheets

Keystone Series 61 Resilient Seated Butterfly Valve, 2" to 12" (English)

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Installation & Maintenance Instructions

Keystone Series 61 Resilient Seated Butterfly Valve (English)

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