Keystone Figure 106 Resilient Seated Butterfly Valve0 pages

VALVES & CONTROLS

KEYSTONE BUTTERFLY VALVES – RESILIENT SEATED
FIGURE106, 24" TO 48", 150 PSI

FEATURES AND BENEFITS
• Heavy duty, cast iron, flanged body is
drilled to ANSI 125/150.
• Resilient seat seals bubble-tight
against the disc, isolating the valve
body and stem from the line media.
• Unique dovetail seat retention allows
for convenient and economical
field replacement.

• Externally adjustable upper journal
V-type packing is installed for both
pressure and vacuum, while bronze
bearings provide low operating torques.
• Molded-in, O-ring seat serves as
flange seal, totally eliminating the
need for gaskets between the flange
and the valve.

• A primary stem seal formed by
preloaded contact of the disc hub
with the flatted seat surfaces and
secondary stem seal formed by an
interference fit of the stem through
the seat provide bubble-tight shut-off
to full valve pressure rating.

• Superior one-piece through-shaft
provides high-strength and positive disc
control.

• Rounded polished disc and hub edges
provide full 360 degree concentric
seating, resulting in minimum flow
restriction, lower seating/unseating
torque and longer seat life.

• Bronze vertical thrust washer helps
prevent disc displacement due to the
weight of the disc and stem.

• Stainless steel taper pins are driven,
sealed and locked for maximum
torsional strength and resistance to
vibration loads.

• Cast-in standardized mounting
patterns allow for direct mounting of
Keystone manual, electric, pneumatic
and hydraulic actuators.
• Each valve is factory tested to 110
percent of specified pressure rating,
helping ensure bubble-tight shut-off
to the full valve rating when bolted
between flanges in either direction of
media flow.

TECHNICAL DATA

GENERAL APPLICATION

Size range: 24" to 48"

Ideally suited for many applications.
Consult your sales representative
for appropriate materials and
specific services.

Pressure rating: 150 psi
bi-directional shut-off
Flange standard: ANSI Class 125/150
flange standards

KEYMC-0028-US-1403

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