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Specifications
Description
The Zurn Wilkins 1-35XL is a 1" lead-free anti-siphon (atmospheric) vacuum breaker with FNPT connections, approved for high health hazard protection. It features a brass body. Rated to 125 psi and up to 180°F. This model is certified lead-free for potable-water installations.
The 35XL Atmospheric Vacuum Breaker is utilized in high hazard, non-continuous pressure applications for protection against backsiphonage of contaminated water into the potable water supply. The main valve body is made from cast bronze with a lightweight plastic float, and is ideal for use in both irrigation and laboratory applications. The 35XL prevents backsiphonage in an economical way, and features a maximum working water pressure of 125 psi and a maximum water temperature of 180°F. Choose from options like a rough chrome plate finish, polished chrome finish, and vertical inlet and outlet with a rough chrome finish.
Features
- 3/4" to 2" sizes provide quick and easy installation
- Backsiphonage is prevented in an economically sound way
- Ideal for irrigation and laboratory applications
- Lead-free cast brass (1/4" - 1/2") or bronze (3/4" - 2") body
- Low-lead law compliant
- ASSE® Listed 1
- CSA® Certified
- IAPMO® Listed
Common Questions
- What hazard level is this AVB approved for?
- It is rated for high health hazard (toxic) cross-connections, but only against backsiphonage. The assembly is listed to ASSE 1001.
- Is this model legal for potable water?
- Yes. It is certified lead-free to NSF/ANSI 372, which is what state plumbing codes require for any device in a drinking-water line.
- Can this device be field tested?
- No. It is not a testable assembly, so it cannot be certified by a backflow tester. Where a jurisdiction requires an annually tested device, specify a testable assembly (double check, RPZ, or PVB) instead.
- Will this protect against backpressure?
- No. An anti-siphon (atmospheric) vacuum breaker protects against backsiphonage only. It will not stop backflow caused by backpressure -- a downstream pump, elevated piping or a boiler -- which requires a double check or RPZ assembly instead.
- How does this have to be installed?
- It must be installed vertically (upright), above the highest downstream outlet, per its installation instructions and ASSE listing.
Specifications
- Type: 35XL Atmospheric Vacuum Breaker
- Size: 1"
- Connection: FNPT
- Body Material: Brass
- Max Pressure (psi): 125
- Application: Irrigation
- Backflow Protection: Backsiphonage
- MPN: 1-35XL
- Temperature: up to 180°F
- Certifications: ASSE-1001, CSA, NSF-372, IAPMO
- Lead-Free: Yes
- Assembly Type: AVB
- Hazard Protection Level: High Health Hazard
- ASSE Standard: ASSE 1001
- USC FCCCHR Approved: No
- Field Testable: No
- Number of Test Cocks: 0
- Approved Orientation: Vertical
Dimensions
| Size Nominal | 1" | End Connection | FNPT |
Details
| Series | 35XL | Device Type | 35XL Atmospheric Vacuum Breaker |
| Lead Free | Yes | Body Material | Brass |
| Application | Irrigation | Max Pressure PSI | 125.0 psi |
| Max Temp °F | 180.0 °F | Backflow Protection | Backsiphonage |
| Assembly Type | AVB | Hazard Rating | High Health Hazard |
| ASSE Standard | ASSE 1001 | Test Cocks | 0 |
| Orientation | Vertical | — | — |
Certifications & Standards
| ASSE-1001 | CSA |
| NSF-372 | IAPMO |
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