Keystone Series 60 Butterfly Valves

Butterfly Valve,keystone Series 60 heavy duty resilient seated butterfly valves feature a cartridge seat design and are available in a range of body, disc and seat materials to suit a variety of applications.



FEATURES:
• Suitable for high pressure and full vacuum
service due to the use of a cartridge seat
design.
• Triple function cartridge seat isolates the
body and stem from the media, provides
positive drop-tight shut-off of line media at
full rated pressure and provides a flange seal,
eliminating the need for flange gaskets.
• Full rated unidirectional dead-end service is
achieved by utilizing a unique patented lip in
the lug body.
• Strong disc-to-stem connection and
elimination of exposed pins or bolts is
achieved through a rectangular drive.
• Ability to install the valve with the disc in the
closed position eliminates the risk of damage
to the valve during installation.
• Maximum flow and rangeabililty is achieved
with the use of a streamlined disc.
• Blowout-proof stems as a standard.
• Longer seat life with low operating torques
is ensured by utilizing upper and lower stem
bearings.
• Need for costly brackets is eliminated due to
the ability to direct mount actuation onto the
valve top-plate.
• Designed to comply with MSS-SP-67 and
API 609 (may be shell tested to spec request)

GENERAL APPLICATION:
Ideally suited for many industrial applications
such as food and beverage, pulp and paper,
chemical, mining, water treatment, HVAC,
power, and automotive where a heavy-duty
resilient seated butterfly valve is required.
Available in a wide variety of body, disc and
seat materials to fit a wide variety of media
applications.

TECHNICAL DATA:
Size range: DN 50 to 600 (NPS 2 to 24)
Wafer and lug styles
Pressure rating: DN 50 to 300 - 17.2 bar
(NPS 2 to 12 - 250 psi)
DN 350 to 600 - 13.7 bar
(NPS 14 to 24 - 200 psi)
PTFE seat or
elastomer covered disc
DN 50 to 300 - 10.3 bar
(NPS 2 to 12 -150 psi)
Dead end rating: Full rated in preferred
direction of flow
Flange standard: ASME Class 125/150