Basic Documentation

Contact Customer Support at 1-888-593-7876 to order today!140
Description
Available in two-way and three-way arrangements for two-position
(On/Off), oating and modulating control, Resilient Seat Buttery
Valve Assemblies provide bubble-tight shutoff for the assemblies’
full-rated pressure.
Features
• Molded-in resilient seat provides bubble-tight shutoff up to
150 psi
• Operating temperature up to 250°F (120°C)
• Lugged body is drilled and tapped for isolation and removal of
downstream piping at full-rated pressure
• Round, polished disc and hub edge provides 360 degree
concentric seating, minimum ow restriction, lower torques and
longer seat life
• Upper and lower inboard bronze bearings ensure longer service
life with low operating torques
• Thru-stem design provides high strength and positive disc control
with standardized end connection for operator interchangeability
• Extended neck allows adequate clearance for anges and
insulation
• Bi-directional, self-adjusting stem seal is suitable for vacuum
and pressure while preventing external contamination of the
stem area
• Heavy-duty corrosion resistant top bushing, absorbs actuator
side thrust
• Cast-in top plate is an integral part of the body and is
standardized to allow direct mounting of actuators
• Each valve is factory tested to 110 percent of specied pressure
rating
• Available in multiple congurations to match jobsite needs.
Applications
Buttery Valve assemblies provide excellent ow control of hot
water, chilled water, condenser water, and thermal storage
systems applications.
Specications
Valve Size .............................................................2 to 20" (51 to 508 mm)
Body Style .................................................................................... Buttery
Assembly Type ...................................................................... 2-Way/3-Way
Materials
Full Cut Disk 2 to 12" / Under Cut Disk 2 to 6":
Body ..................................................................................... Cast Iron
Disc .........................................................................304 Stainless Steel
Stem .......................................................................416 Stainless Steel
Seat .......................................................................................... EPDM
Bearing ................................................................................... Bronze
Upper Stem Bushing ............................................................ Polyester
Upper Stem Seal ...........................................................................NBR
Full Cut Disk 14 to 20" / Under Cut Disk 8 to 20":
Body ..................................................................................... Cast Iron
Disc ..........................................................................Aluminum Bronze
Stem ...........................................................316 or 18-8 Stainless Steel
Seat .......................................................................................... EPDM
Bearing ........................................................................Sintered Metal
Upper Stem Bushing ............................................................ Polyester
Upper Stem Seal ...........................................................................NBR
Controlled Medium .............................................Chilled Water, Hot Water
Temperatures ......................................................................-40 to +250°F
(-40 to +121°C)
Close-off Ratings .................................................Refer to Selection Tables
Two- & Three-Way Resilient Seat Valve Assemblies
Three-Way Buttery Valve Congurations
Key: FC Fail Closed FO Fail Open ACT Actuator Location
View from Top of Valve/Actuator Assembly (Shaft or Actuator End)
EF
FC
ACT
FO
FC
ACT
FO