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Specifications
Description
The Watts LF288AC-Z32 1/2 is a 1/2" lead-free anti-siphon (atmospheric) vacuum breaker with FNPT connections, approved for high health hazard protection. It features a brass body and a silicone seat. Rated to 125 psi and 33°F to 180°F. This model is certified lead-free for potable-water installations.
This 1/2 inch lead free anti-siphon vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a lead free brass body with polished chrome finish, chemical resistant silicone seat disc, and atmospheric vent to prevent spilling. It has a full size orifice to assure pipe size capacity and maximum flow. It is ideal for low flow, non-continuous hot or cold water health hazard installations such as on laboratory equipment.
Features
- Lead free brass body
- Full size orifice for maximum flow
- Female NPT inlet and outlet
- For use with hot or cold water
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 has no test cocks and 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. It also may not be used under continuous pressure: the supply downstream of it must not stay pressurized for more than 12 hours in any 24-hour period.
- How does this have to be installed?
- It must be installed vertically (upright), above the highest downstream outlet, per the installation instructions and its ASSE listing.
Specifications
- Type: AVB
- Size: 1/2"
- Inlet Size: 1/2"
- Connection: FNPT
- Body Material: Brass
- Seat / Seal Material: Silicone
- Max Pressure (psi): 125
- Application: Domestic Water
- Backflow Protection: Backsiphonage
- Operation: Non-Continuous
- Pack Quantity: 50
- Country of Origin: Mexico
- Warranty: 1 Year Limited
- MPN: LF288AC-Z32 1/2
- Temperature: 33°F to 180°F
- Certifications: ASSE-1001, ANSI-A112.1.1, CSA-B64
- 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
- Shutoff Valves: None
- Approved Orientation: Vertical
- Flood Sensor (SentryPlus Alert): No
- Strainer Included: No
- Air Gap Fitting Included: No
Product Information
Dimensions
| Size Nominal | 1/2" | Inlet Size | 1/2" |
| Outlet Size | 1/2" | End Connection | FNPT |
Details
| Series | LF288A | Device Type | AVB |
| Lead Free | Yes | Body Material | Brass |
| Seat Material | Silicone | Application | Domestic Water |
| Operation | Non-Continuous | Max Pressure PSI | 125.0 psi |
| Max Temp °F | 180.0 °F | Pack Qty | 50 |
| Backflow Protection | Backsiphonage | Min Temp °F | 33.0 °F |
| Assembly Type | AVB | Hazard Rating | High Health Hazard |
| ASSE Standard | ASSE 1001 | Test Cocks | 0 |
| Shutoff Valve Type | None | Orientation | Vertical |
Certifications & Standards
| ASSE-1001 | ANSI-A112.1.1 |
| CSA-B64 | — |
Compare with similar products
| Backflow Protection | Backsiphonage
| Backsiphonage
| Backsiphonage
| Backsiphonage
|
| Assembly Type | AVB
| PVB
| PVB
| PVB
|
| Hazard Rating | High Health Hazard
| High Health Hazard
| High Health Hazard
| High Health Hazard
|
| ASSE Standard | ASSE 1001
| ASSE 1020
| ASSE 1020
| ASSE 1020
|
| USC Approved | — | Yes | Yes | Yes |
| Testable | — | Yes | Yes | Yes |
| Shutoff Valve Type | None
| Quarter-Turn Ball
| Quarter-Turn Ball
| Quarter-Turn Ball
|
| Orientation | Vertical
| Vertical
| Vertical
| Vertical
|
| Series | LF288A
| LF008PCQT
| 800M4QT
| 800M4QT
|
| Country Of Origin | Mexico
| United States
| United States
| United States
|
| Warranty | 1 Year Limited
| 1 Year Limited
| 1 Year Limited
| 1 Year Limited
|
| Spec Sheet | ||||
| Install Sheet | ||||
| Device Type | AVB
| PVB
| PVB
| PVB
|
| Size Nominal | 1/2"
| 3/4"
| 3/4"
| 1/2"
|
| Inlet Size | 1/2"
| 3/4"
| 3/4"
| 1/2"
|
| Outlet Size | 1/2"
| 3/4"
| 3/4"
| 1/2"
|
| Lead Free | Yes | Yes | — | — |
| End Connection | FNPT
| — | FNPT
| FNPT
|
| Body Material | Brass
| Copper
| Bronze
| Bronze
|
| Seat Material | Silicone
| EPDM
| Silicone
| Silicone
|
| Application | Domestic Water
| Domestic Water
| Domestic Water
| Domestic Water
|
| Operation | Non-Continuous
| Continuous
| Continuous
| Continuous
|
| Max Pressure PSI | 125.0 psi | 150.0 psi | 150.0 psi | 150.0 psi |
| Max Temp °F | 180.0 °F | 180.0 °F | — | — |
| Certifications | ASSE-1001, ANSI-A112.1.1, CSA-B64
| USC, IAPMO
| ASSE-1020, USC
| ASSE-1020, USC
|
| Options | — | — | Test Cocks
| Test Cocks
|
| Min Temp °F | 33.0 °F | 33.0 °F | 33.0 °F | 33.0 °F |
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