This is a Keckley 10-inch Carbon Steel Wafer Check Valve (MPN: DD2R-CS-361IX-910). It features a Class 150 double disc design with a carbon steel (WCB) body, 316 stainless steel (CF8M) discs, Buna-N seating, and Inconel X-750 springs for inline backflow prevention in gas or liquid applications.
We have inspected this item and we do not have the capability to install the unit to fully test it.
Defects Noted:
Please refer to the photos for more information.
This unit only includes what is photographed in the listing.
Technical Specs
| Item | Check Valve |
| Manufacturer Part Number | DD2R-CS-361IX-910 |
| Pipe Size | 10 in |
| Body Material | Carbon Steel |
| Connection Type | Wafer |
| Media Temp. Range | -20 °F to 250 °F |
| Max. Pressure (CWP) | 275 psi |
| Max. Pressure (Steam) | Not Rated |
| Flow Rate | 26,000 gpm |
| Silent Check | Standard |
| Seat Material | Buna-N |
| Seal Material | Buna-N |
| Disc Material | 316 Stainless Steel |
| Spring Material | Inconel X-750 |
| Operating Temperature - Minimum | -20 °F |
| Operating Temperature - Maximum | 250 °F |
| Overall Length | 5.75 in |
| For Media | Gas; Liquids |
| Connection Size - Side 1 | 10 in |
| Connection Size - Side 2 | 10 in |
| 3-A Compliance | Not Rated |
| Cracking Pressure | 1.05 psi |
| Check Mechanism | Double Disc |
| Flow Coefficient (Cv) | 2,600 |
| Mounting Orientation | HorizontalVertical |
| Vacuum Service Rating | Not Rated |
| Valve Series | DD |
| Connection Type - Side 1 | Wafer |
| Connection Type - Side 2 | Wafer |
| Valve Body Style | Inline |