12" 300# Check Valve QTY 2
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YDF SN3R-CF8M-12 12 in. Class 300 CF8M Swing Check Valves — 2-Unit Lot
Description
Available is one lot of two matching YDF SN3R-CF8M-12 swing check valves. Each is a 12 in., ASME Class 300, CF8M stainless-steel flanged valve with a bolted cover and integral flow-direction arrow. The valves are separately restrained on wood pallets, with clean raised-face flanges and protective material visible at the end faces.
The physical nameplates identify both valves as SN3R-CF8M-12 and show CF8M body and disc materials, a 49.6 bar maximum operating pressure at 38°C, and a −29°C to 538°C temperature range. The matched serial numbers are YDF20010099 and YDF20010100.
YDF identifies its SC/SN swing-check-valve range as a cast-steel valve family manufactured to API 594 or BS 1868, with API 598 testing and available raised-face flanged connections. The offered valves must be selected by their own nameplate, serial-numbered test record, and buyer verification—not generic family information.
Verified Valve Data
| Specification | Details |
| Quantity | 2 matching valves |
| Manufacturer marking | YDF |
| Figure number | SN3R-CF8M-12 |
| Valve style | Bolted-cover swing check valve with a cast flow-direction arrow visible on the body |
| Size | 12 in. / NPS 12 |
| Pressure class | Class 300 |
| End connection | Raised-face flanged ends, per the serial-numbered factory test record |
| Body material | CF8M |
| Disc material | CF8M |
| Pin marking | F316 |
| Seat marking | HF; buyer to verify exact seat/hardfacing material and configuration |
| Maximum operating pressure marking | 49.6 bar at 38°C |
| Temperature marking | −29°C to 538°C |
| Standards marked | API 594 / ASME B16.34 |
| Serial number — valve 1 | YDF20010099 |
| Serial number — valve 2 | YDF20010100 |
| Nameplate date | 02/2020 |