This is a Champion 4-inch Class 150 stainless steel wafer check valve (MPN: 4SDR15-SSBS-R). Built with a 316 stainless steel body (CF8M), 316SS disc, Buna-N seat, and 316SS spring, this single-disc inline wafer check valve is designed for reliable backflow prevention in process piping, liquid, and gas applications between Class 150 flanges.
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 |
| MFR # | 4SD15-SSBS-R |
| Pipe Size | 4" |
| Pipe or Tube Size - Check Valves | 4" |
| Overall Height | 6-7/8" |
| Size | 4" |
| Width | 6-7/8" |
| Length | 2-1/4" |
| Overall Length | 4.5 in |
| Pipe or Tube Size | 4 in |
| Nominal Valve Size | 4 in |
| Connection Size - Side 2 | 4 in |
| Connection Size - Side 1 | 4 in |
| Height - Cap to Inlet Center | 1 1/2 in |
| Wire Rope Length | 4.5 in |
| Connection Type | Flanged |
| Body Material | 316 Stainless Steel |
| Max. Water Pressure - Valves | 275 psi @ 100 Degrees F |
| Cracking Pressure - Check Valves | 0.184 psi |
| Cracking Pressure | 0.18 psi |
| Max. Steam Pressure - Valves | Not Rated |
| Seal Material - Check Valves | Buna-N |
| Max. Pressure | 275 psi @ 100 Degrees F |
| Spring Material - Check Valves | 316 Stainless Steel |
| Application - Valves | Process Piping |
| Seat Material - Check Valves | Buna-N |
| Body Material - Valves | Stainless Steel |
| Spring Material | 316 Stainless Steel |
| Cap to Inlet Center | 1-1/2" |
| Item - Check Valves | Check Valve |
| Mechanism and Body Design | Inline Wafer |
| Max. Temp. | 1000 Degrees F |
| Max. Water Pressure | 275 psi @ 100 Degrees F |
| Material of Construction | stainless steel |
| Seat Material | Buna N |
| Flow Design | Single |
| Sub-Category | Stainless Steel |
| Mounting Orientation - Check Valves | Horizontal, Vertical |
| Seal Material | Buna-N |
| Mounting Position | Vertical or Horizontal |
| Max. Temp. - Valves | 250 Degrees F |
| Connection Type - Check Valves | Flange x Flange |
| Flow | 295 gpm |
| Mounting Orientation | Horizontal, Vertical |
| ANSI Flange Class | Class 150 |
| Connection Type - Side 1 | Wafer |
| Vacuum Service Rating | Not Rated |
| Valve Body Style | Inline |
| For Media | Oil, Water |
| Check Mechanism | Swing |
| Includes Counterweight | No Counterweight |
| Silent Check | Standard |
| Operating Temperature - Maximum | 250 Degrees F |
| Check Mechanism Material | 316 Stainless Steel |
| Maximum Pressure - Operating | 275 psi |
| Valve Series | SD |