Click to zoomClass250 AWWA C504 Flat Face AWWA C504 Double Flange Butterfly Valve
The AWWA C504 EPDM Seated Butterfly Valve shall be of concentric design and a heavy-duty valve design. The valve is lined with rubber to offer a resilient seat. The rubber seat is bonded to the valve body and is not replaceable in the field. The valve is designed for treated water, untreated water, and other neutral clean fluids. This manual will furnish you with the necessary information for the proper installation and maintenance of the valve and to guarantee a long service life.
Description
This specification shall apply to Class 150 and Class 250 butterfly valves
Benefits:
- Long life in the most demanding applications
- Long seat/body life utilizing vulcanized design
- Superior disc-to-seat sealing surface
General: AWWA C504 butterfly valves shall be bubble tight against full rated pressure. Valves shall be constructed per AWWA C-504-00 and suitable for bi-directional shut-off and throttling service.
Face to Face: Lay length per AWWA C-504-00, Class 150B, Table 1
Pressure Rating: 150 psig bi-directional, bubble tight
Connections: Flat-faced flanged per AWWA C-504-00 Table 2, ANSI B16.1, Class 125 / Class 250
Body: Cast Iron / Ductile Iron
Disc: Concentric, CF8M with pin
Seat: EPDM or Buna-N vulcanized resilient seat, flat face
Material Specification
| Part | Material |
|---|---|
| Body | Cast Iron Ductile Iron |
| Disc | Ductile Iron CF8 CF8M CF3M Duplex Steel |
| Shaft | SS416 SS431 SS316 17-4PH |
| Seat | EPDM NBR |
| Bushing | FRP PTFE Bronze |
| Lever | Malleable Iron Carbon Steel Aluminum SS316 |
| Gear Box | Ductile Iron Aluminum SS316 |
Corrosion Protection
Epoxy Resin Powder Spray, minimum thickness not less than 300 microns
Disc Options
Through shaft with Pin
Seat Options
Vulcanized seat
Main Dimensions (mm)
| SIZE | L | 125LB | D2 | D3 | n-ød | D4 | n-ød1 | ø1 | ø1(mm) | k | H | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | D1 | n-ø | C | |||||||||||
| 4" | 127 | 229 | 190.5 | 8-19 | 23.9 | 90 | 70 | 4-10 | — | — | 0.625" | 15.875 | 3/16 | 32 |
| 6" | 127 | 279 | 241.5 | 8-22 | 25.4 | 90 | 70 | 4-10 | — | — | 0.75" | 19.05 | 3/16 | 32 |
| 8" | 152 | 343 | 298.5 | 8-22 | 28.6 | 125 | 102 | 4-12 | 70 | 4-10 | 0.875" | 22.225 | 3/16 | 45 |
| 10" | 203 | 406 | 362 | 12-25 | 30.2 | 125 | 102 | 4-12 | 70 | 4-10 | 1.125" | 28.575 | 1/4 | 45 |
| 12" | 203 | 483 | 432 | 12-25 | 31.8 | 125 | 102 | 4-12 | 125 | 4-14 | 1.25" | 31.75 | 1/4 | 45 |
| 14" | 203 | 533 | 476 | 12-29 | 35 | 175 | 140 | 4-18 | 125 | 4-14 | 1.25" | 31.75 | 1/4 | 45 |
| SIZE | L | 125LB | C | D2 | D3 | n-ød | D4 | n-ød1 | ø1 | ø1(mm) | n-k | H | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | D1 | n-ø | n-UNC | ||||||||||||
| 16" | 203 | 597 | 539.5 | 16-29 | — | 36.6 | 175 | 140 | 4-18 | 125 | 4-14 | 1-5/16" | 33.34 | 5/16 | 52 |
| 18" | 203 | 635 | 578 | 12-32 | 4-1 1/8"-7 | 39.7 | 175 | 140 | 4-18 | 125 | 4-14 | 1-1/2" | 38.1 | 3/8 | 52 |
| 20" | 203 | 699 | 635 | 16-32 | 4-1 1/8"-7 | 42.9 | 210 | 165 | 4-22 | 140 | 4-18 | 1-5/8" | 41.27 | 3/8 | 64 |
| 24" | 203 | 813 | 749.5 | 16-35 | 4-1 1/4"-7 | 47.7 | 210 | 165 | 4-22 | 140 | 4-18 | 2" | 50.8 | 1/2 | 70 |
| 30" | 305 | 984 | 914.5 | 24-35 | 4-1 1/4"-7 | 54 | 300 | 254 | 8-18 | 165 | 4-22 | 2-1/2" | 63.5 | 2*5/8 | 95 |
| 36" | 305 | 1168 | 1086 | 28-41 | 4-1 1/2"-6 | 60.4 | 300 | 254 | 8-18 | — | — | 3" | 76.2 | 2*3/4 | 130 |
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