1/2 LF288ASC
Item Number: 0792056
1
/
of
1
Regular price
$330.75
Special Order
When Will it Ship:
Contact for Lead Time
Estimated transit time: 2 to 5 Business Days
Brand - Watts
Couldn't load pickup availability
- Nominal Size: 1/2 inch
- Weight: 26.0 lb
- Body Material: Lead Free Brass
- Finish: Satin Chrome
- Disc Material: Chemical Resistant Silicone
- Maximum Temperature: 180°F (82°C)
- Maximum Pressure: 125 PSI (8.6 bar)
- Full size orifice for maximum flow and pipe capacity
- Approved to ASSE 1001, CSA B64.1.1, UPC, NSF/ANSI 372
Description
Description
The Watts LF288ASC is a 1/2 inch Lead Free anti-siphon vacuum breaker designed to prevent backsiphonage of contaminated water into a potable water supply. This device features a durable Lead Free brass body with a satin chrome finish and a chemical-resistant silicone seat disc, offering excellent heat and water hammer shock resistance. It provides a full-size orifice for maximum flow and pipe capacity. Ideal for low flow, non-continuous hot or cold water health hazard installations, such as laboratory equipment, it handles temperatures up to 180°F and pressures up to 125 PSI. Approved to ASSE 1001, CSA B64.1.1, and NSF/ANSI 372 standards.
Help Me Connect
Help Me Connect
Installation Guidelines
- This atmospheric vacuum breaker must be installed a minimum of 6 inches above the highest point on the downstream piping to function correctly.
- Ensure there are no shutoff valves downstream of this anti-siphon vacuum breaker.
- This device features female NPT inlet and outlet connections for easy integration into existing plumbing systems.

Collapsible content
Additional Details
This 1/2 inch Watts LF288ASC Lead Free anti-siphon vacuum breaker is designed to prevent the reverse flow of contaminated water into a potable water supply. It is ideal for low flow, non-continuous hot or cold water health hazard installations, such as with laboratory equipment.
Features
- Constructed with a Lead Free brass body, satin chrome finish, and a chrome hood for durability.
- Features a chemical resistant silicone seat disc and a lightweight disc float, ensuring tight seating and high resistance to heat and water hammer shock.
- Equipped with a full size orifice to maintain pipe size capacity and maximum flow with minimal pressure loss.
- The atmospheric vent prevents water spilling under all rates of flow.
Important: This device is not to be used under continuous pressure or where there is a possibility that a backpressure condition may develop. Always read all installation instructions and product safety information before beginning installation.
Specifications
- Product Type: Anti-Siphon Vacuum Breaker
- Nominal Size: 1/2 inch
- Body Material: Lead Free Brass
- Finish: Satin Chrome
- Disc Material: Silicone
- Inlet/Outlet: Female NPT
- Maximum Operating Temperature: 180°F (82°C)
- Maximum Working Pressure: 125 PSI (8.6 bar)
Certificates & Approvals
- ASSE 1001
- ANSI A112.1.1
- CSA B64.1.1
- UPC
- NSF/ANSI 372
- Certified thru 1 inch (25mm) CSA
Dimensions & Weight (for 1/2 inch)
- Dimension A: 2 in (50mm)
- Dimension B: 2 3/4 in (70mm)
- Dimension C: 1 1/2 in (38mm)
- Dimension D: 1 1/4 in (32mm)
- Weight: 8 oz (227 gm)
FAQs
What is the primary function of the Watts LF288ASC anti-siphon vacuum breaker?
This device's primary function is to prevent backsiphonage, which is the reverse flow of contaminated water into a potable drinking water supply.
What materials is the LF288ASC vacuum breaker constructed from?
It is constructed with a Lead Free brass body, features a satin chrome finish, and includes a chemical resistant silicone seat disc for durability and performance.
What are the maximum temperature and pressure ratings for this device?
The Watts LF288ASC can withstand a maximum operating temperature of 180°F (82°C) and a maximum working pressure of 125 PSI (8.6 bar).
Can this vacuum breaker be used under continuous pressure?
No, this anti-siphon vacuum breaker is specifically designed for non-continuous pressure applications. It should not be used where continuous pressure or a backpressure condition may develop.
What types of installations are suitable for this 1/2 inch vacuum breaker?
It is ideal for low flow, non-continuous hot or cold water health hazard installations, such as those found in laboratory equipment.