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| Item | Dual Check Valve |
| Connection Type | FNPT |
| Connection Type | FNPT x FNPT |
| Dimensions | 3 1/4" x 1 3/4" x 1 3/4" |
| Height | 44.45 mm |
| Length | 3 21/64" |
| Max. Temp. | 180°F |
| Max. Water Pressure | 175 psi |
| Min. Temp. | 33°F |
| Seal Material | EPDM |
| Series | 4N Series Backflow Preventers |
| Size | 3/8" |
| Spring Material | Stainless Steel |
| Suitable For Central Heating Water | No |
| Body Material | Bronze |
| Check Mechanism Material | Acetal |
| Connection Gender - Side 1 | Female |
| Connection Gender - Side 2 | Female |
| Connection Size - Side 1 | 3/8" |
| Connection Size - Side 2 | 3/8" |
| Connection Type - Side 1 | NPT |
| Connection Type - Side 2 | NPT |
| Cracking Pressure | 2 psi |
| Field Testable | Not Field Testable |
| Flow Rate | 12.5 GPM |
| For Media | Water |
| Hazard Protection Level | Low Health Hazard |
| Includes Atmospheric Vent | No Atmospheric Vent |
| Includes Freeze Protection | No Freeze Protection |
| Max. Media Temperature | 180°F |
| Max. Pressure (cwp) | 175 psi |
| Media Temp. Range | 33°F to 180°F |
| Min. Media Temperature | 33°F |
| Mounting Orientation | Horizontal |
| Overall Height | 1 22/25" |
| Overall Length | 3.32" |
| Overall Width | 1 22/25" |
| Protection Type | Back Pressure, Back Siphonage |
| Seat Material | Buna N, EPDM |
| Standards | ASSE, CSA, ISO |
| Valve Series | 4N |
| Ship weight (kg) | 0.32 |
| Ship height (cm) | 4.45 |
| Ship length (cm) | 8.26 |
| Ship width (cm) | 4.45 |
| HS code | 8481301090 |
| Country of Origin | US |
| Model | Connection Type | Length | Size | Price | |
|---|---|---|---|---|---|
| 4NLF3A44B | Npt | 4.375" | 3/4" | €333.63 | |
| 4NLF3S65A | SWV X NPT | 4.75" | 1" | €289.62 | |
| 4NLF3A22AC | - | - | - | €120.91 | |
| 4NLF3S65B | - | - | - | €314.87 |
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