Specifications
Description
The Zurn Wilkins 12-NR3XLDULUP is a 1/2" pressure reducing valve with FNPT connections. It reduces inlet pressure of up to 400 psi to an adjustable 15-75 psi downstream, factory set at 50 psi. It features a lead-free bronze body. Rated to 400 psi and up to 140°F.
Common Questions
- What pressure is it set to out of the box?
- 12-NR3XLDULUP ships factory set at 50 psi. The adjustable reduced-pressure range is 15 to 75 psi, so you can dial the outlet anywhere in that band on site with the adjusting bolt - loosen the locknut, turn to raise or lower pressure, retighten and verify with a downstream gauge.
- Does it include a strainer?
- Yes - 12-NR3XLDULUP has an integral strainer built into the body, so a separate inline strainer ahead of it is not required. It is accessible for cleaning without removing the valve from the line.
- Does it have a built-in bypass for thermal expansion, or do I still need an expansion tank?
- 12-NR3XLDULUP includes an integral thermal-expansion bypass that relieves excess downstream pressure back toward the supply when street pressure is lower. It is not a substitute for a properly sized expansion tank where your local code requires one - the bypass only relieves back to the street when street pressure is lower than the closed-system pressure.
- Does it come with a gauge?
- 12-NR3XLDULUP has a gauge tapping (port) but ships plugged, with no gauge included. Thread in your own gauge to read the reduced downstream pressure.
Specifications
- Type: Water Pressure Reducing Valve
- Size: 1/2"
- Inlet Size: 1/2"
- Outlet Size: 1/2"
- Connection: FNPT
- Body Material: Lead-Free Bronze
- Max Pressure (psi): 400
- Application: Domestic Water
- MPN: 12-NR3XLDULUP
- Temperature: up to 140°F
- Certifications: ASSE-1003, IAPMO, CSA, NSF-61
- Factory Set Pressure (psi): 50
- Adjustable Range - Min (psi): 15
- Adjustable Range - Max (psi): 75
- Thermal Expansion Bypass: Yes
- Integral Strainer: Yes
- Gauge: Tapped Only
- Union Configuration: Less Union (2 Integral FNPT)
- Capacity Class: Standard
- Regulated Media: Domestic Water
- Bell Housing: Standard
Product Information
| SKU | UPC |
|---|---|
| 12-NR3XLDULUP | 612052077154 |
Dimensions
| Size Nominal | 1/2" | Inlet Size | 1/2" |
| Outlet Size | 1/2" | End Connection | FNPT |
Details
| Device Type | Water Pressure Reducing Valve | Body Material | Lead-Free Bronze |
| Application | Domestic Water | Max Pressure PSI | 400.0 psi |
| Max Temp °F | 140.0 °F | Set Pressure PSI | 50.0 psi |
| Adj Range Min PSI | 15.0 psi | Adj Range Max PSI | 75.0 psi |
| Thermal Bypass | Yes | Integral Strainer | Yes |
| Gauge Config | Tapped Only | Union Config | Less Union (2 Integral FNPT) |
| Capacity Class | Standard | Regulated Media | Domestic Water |
| Bell housing type | Standard | — | — |
Certifications & Standards
| ASSE-1003 | IAPMO |
| CSA | NSF-61 |
Compare with similar products
| Set Pressure PSI | 50.0 psi | 85.0 psi |
| Adj Range Min PSI | 15.0 psi | 75.0 psi |
| Adj Range Max PSI | 75.0 psi | 125.0 psi |
| Thermal Bypass | Yes | Yes |
| Integral Strainer | Yes | Yes |
| Union Config | Less Union (2 Integral FNPT)
| Single Union
|
| Capacity Class | Standard
| Standard
|
| Regulated Media | Domestic Water
| Domestic Water
|
| Device Type | Water Pressure Reducing Valve
| Water Pressure Reducing Valve with Removable Integral Strainer
|
| Size Nominal | 1/2"
| 1-1/2"
|
| Inlet Size | 1/2"
| 1-1/2"
|
| Outlet Size | 1/2"
| 1-1/2"
|
| End Connection | FNPT
| FNPT
|
| Body Material | Lead-Free Bronze
| Lead-Free Bronze
|
| Application | Domestic Water
| Domestic Water
|
| Max Pressure PSI | 400.0 psi | 300.0 psi |
| Max Temp °F | 140.0 °F | 140.0 °F |
| Certifications | ASSE-1003, IAPMO, CSA, NSF-61
| ASSE-1003, IAPMO, CSA, NSF-61
|
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