The Milwaukee Valve 2974-M 3 is a 3-inch flanged cast iron swing check valve designed for backflow prevention in industrial and commercial fluid systems. Features include a heavy-duty cast iron body, Class 125 ANSI flanged connections, IBBM (Iron Body Bronze Mounted) construction, and ratings up to 200 PSI WOG / 125 PSI SWP.
Inspection & Condition Details:
We have inspected this item and we do not have the capabilit 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 | Swing Check Valve |
| Manufacturer Part Number | 2974-M 3 |
| Valve Body Style | Inline |
| Pipe Size | 3 in |
| Connection Type | Flange x Flange |
| Body Material | Cast Iron |
| Media Temp. Range | -20 °F to 350 °F |
| Max. Pressure (CWP) | 200 psi |
| Max. Pressure (Steam) | 125 psi |
| Cracking Pressure | 0.5 psi |
| Check Mechanism | Swing |
| Flow Rate | 327 gpm |
| For Media | Gas; Oil; Steam; Water |
| ANSI Flange Class | Class 125 |
| Flow Coefficient (Cv) | 366 |
| Overall Length | 9.5 in |
| Connection Size - Side 1 | 3 in |
| Connection Type - Side 1 | Flange |
| Connection Size - Side 2 | 3 in |
| Connection Type - Side 2 | Flange |
| Operating Temperature - Minimum | -20 °F |
| Operating Temperature - Maximum | 350 °F |
| Mounting Orientation | Horizontal |
| Silent Check | Standard |
| Seat Material | Bronze |
| Seal Material | Cobalt Chrome Alloy |
| Disc Material | Cast Iron |
| Height - Cap to Inlet Center | 5-9/16 in |
| Includes Counterweight | No Counterweight |
| 3-A Compliance | Not Rated |
| Vacuum Service Rating | Not Rated |
| Valve Series | F-2974M |