American Engineering Trusted Wordwide ®DATA SHEET
11D-C-B-R
11/13/2025 12:53 AM
| Product Category | 11D-C-B-R |
| Product Line | Cast Iron & Bronze Flanged Check Valves (10D, 11D, 12D, 13D, 20D, 21D) |
| Part Description | CLASS 250 Flange Style Silent Check Valve with Cast Iron Body and Bronze Trim |

| Face to Face | 3.13 |
| Dia. of Bolt Circle | 6.63 |
| Dia. of Flange | 8.25 |
| No. of Studs | 8 |
| Dia. of Studs | 0.75 |
| Length of Studs | 8.50 |
| Weight (lbs.) | 15 |
| Pressure Rating | up to 500 PSI |
| Temperature Range | -30°F to 250°F (-34°C to 121°C) |
| Standard Soft Goods | Buna-N O-Rings |
| Cartridge Type | Check |
| Connection Type | ANSI B16.5 Flange |
| Connection Size | 3" |
| Body Material | Cast Iron, ASTM A126, CL. B |
| Port & Vent Options | [-DP] Drain Plug Above Seat (1/2" NPT) |
| Optional Soft Goods | Viton® O-Rings, EPDM O-Rings |