Vatac AWWA C504 Butterfly valves
are manufactured in accordance with the latest revision of AWWA C504, Class
150B and conform to NSF Standard 61. All valves shall be comply with the
following details.
» Valve Bodies:
Valve bodies shall be constructed of ASTM A126, Class B cast iron for flanged
valves or ASTM A48, Class 40 for wafer style. Flanged valves shall be fully
faced and drilled in accordance with ANSI Standard B16.1, Class 125.
» Valve Seats:
Rubber body seats shall be of one piece construction, simultaneously molded and
bonded into a recessed cavity in the valve body. Seats may not be located on
the disc or be retained by segments and/or screws. For wafer style valves, the
seat shall cover the entire inner surface of the valve body and extend over the
outside face of the valve body to form a flange gasket.
» Valve Bearings: Valve bearings
shall be of a self-lubricating, nonmetallic material to effectively isolate the
disc-shaft assembly from the valve body. Metal-to-metal thrust bearings in the
flow stream are not allowed.
» Valve Disc: The disc shall be
a lens-shaped design to afford minimal pressure drop and line turbulence.
Materials of construction shall be ASTM A126, Class B cast iron disc with a
stainless steel type 316 edge Discs shall be retained by stainless steel pins
which extends through the full diameter of the shaft to withstand the specified
line pressure up to valve rating and the torque required to operate the valve.
Disc stops located in the flow stream are not allowed.
» Valve Shafts:
Valve shafts shall be of stainless steel type 304. At the operator end of the
valve shaft, a packing gland utilizing "V" type chevron packing shall
be utilized. "O" ring and "U" cup packing is not allowed.
Standards Compliance and Features
» Standards: AWWA C504
» Size Range:24”(DN600)~144”(DN3600)
» Pressure Rating: 25 Psi to 250
Psi
» Classifications:25A, 25B,75A, 75B,150A,
150B and 250B
» Laying Lengths: AWWA C504
Short and Long Bodies
» Materials: Ductile Iron
» Connection Flange Options:
ANSI/ASME B16.1 CLASS125, ANSI/ASME B16.5 CLASS 150, AWWA C207, ANSI/AWWA
C111/A21.12(MJ)
» Actuations: Manual, Pneumatic, Electric, Hydraulic (Counterweight)
& Electro-hydraulic
Vatac offers AWWA C504 Butterfly Valves including,
but not limited to
▲ AWWA C504 Flanged Butterfly Valve ▲ AWWA C504 Wafer
Butterfly Valve ▲ AWWA C504 Mechanical Joint Butterfly Valve
▲ AWWA C504 Grooved Butterfly Valve ▲ AWWA C504 Buried Service Butterfly Valve
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