Keystone Series 61 Resilient Seated Butterfly Valve, 14" to 24"0 pages

VALVES & CONTROLS

KEYSTONE BUTTERFLY VALVES – RESILIENT SEATED
SERIES 61, 14" TO 24"
61W - Wafer style and 61L - Lugged style
FEATURES
• Rounded polished disc edge gives full
concentric sealing, lower torques,
longer seat life and bubble-tight
shutoff.

• Top bushing absorbs actuator side
thrust loads.

• The seat is field replaceable and fully
isolates the body and stem from the
flow.

• A molded-in O-ring in the seat for
flange sealing eliminates the need
for gaskets.

• Primary stem sealing exceeds the
pressure rating of the valve and
prevents leakage through stem area to
atmosphere.

• Extended body neck allows for pipe
insulation.

• Top seal prevents moisture penetrating
into the stem area.

• Body locating holes ease installation
and centering between the flanges.

• A secondary stem seal provides backup
sealing.
• Top and bottom inboard stem bearings
for optimum support and minimum
friction to prolong valve life.

GENERAL APPLICATIONS

TECHNICAL DATA

These valves are ideally suited to many
applications where tight shut-off is
required, such as:

Size range: 14" to 24"

Industrial processing
Water and wastewater
Dry bulk conveying
Paper mills
Light slurry handling
Food and beverage
HVAC
Transportation

KEYMC-0277-US-0705

Copyright © 2014 Pentair

Pressure:

150 psi

End of line: 90 psi
Temperature: -40°F to +300°F
End connection: ASME 125/150•
Available approvals: PED (CE Mark), DNV,
Lloyds.

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