AWWA C504 Gear Multi Top Double Flange Rubber Seated Butterfly Valve
TKEO 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 shat, 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 lron |
| Connection Flange Options: |
ANSI/ASME B16.1 CL ASS125, ANSIASME B16.5 CL ASS 150, AWWA C207, ANSI/AWWA C111/A21.12(MJ) |
| Actuations: |
Manual, Pneumatic, Electric, Hydraulic (Counterweight) & Electro-hydraulic |
Our AWWA butterfly valves includes but not limit 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
