1/2" Watts LF288A Atmospheric Vacuum Breaker

Item Number: 0792038
1 1
$249.00
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • 1/2 inch Lead Free* brass body
  • Weight: 25.5 lb
  • Maximum Working Pressure: 125 PSI
  • Maximum Temperature: 180°F (82°C)
  • Silicone seat disc for tight seating
  • Full size orifice for maximum flow
  • Prevents backsiphonage of contaminated water
  • Ideal for low flow, non-continuous applications
  • ASSE 1001 Approved

Description

The Watts LF288A 1/2" Anti-Siphon Vacuum Breaker is designed to prevent backsiphonage of non-potable water into the potable water supply. This lead-free brass device features a durable silicone disc that resists high heat and water hammer shock, ensuring tight seating. Ideal for low flow, non-continuous hot or cold water applications like laboratory equipment, it operates up to 125 PSI and 180°F (82°C). Its full-size orifice maintains pipe capacity and minimizes pressure loss. This vacuum breaker is ASSE 1001, ANSI A112.1.1, and CSA B64.1.1 approved for reliable backflow prevention.

Help Me Connect

Connections

  • The 1/2 inch inlet connects to a 1/2 inch male NPT thread.
  • The 1/2 inch outlet connects to a 1/2 inch male NPT thread.

Installation Requirements

  • Must be installed 6 inches above the highest point on the downstream piping.
  • There can be no shutoff valves downstream of the anti-siphon vacuum breaker.
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Additional Details

The 1/2 inch Watts Series LF288A Anti-Siphon Vacuum Breaker is designed to prevent backsiphonage of contaminated water into a potable water supply. It is ideal for low flow, non-continuous hot or cold water health hazard applications, such as on laboratory equipment.

Key Features

  • Constructed with a Lead Free* brass body and components for safe use with potable water.
  • Features a full size orifice to ensure maximum pipe size capacity and minimal pressure loss.
  • A lightweight, durable disc float prevents spilling under all rates of flow.
  • Includes a silicone seat disc for high heat and water hammer shock resistance, ensuring tight seating with light contact.
  • Equipped with an atmospheric vent to prevent spilling.

Installation Notes

  • Must be installed 6 inches above the highest point on the downstream piping.
  • There can be no shutoff valves downstream of the anti-siphon vacuum breaker.

This device is an atmospheric type anti-siphon vacuum breaker and is not designed for continuous pressure applications or where a backpressure condition may develop. For continuous pressure or backpressure protection, refer to Watts Series LF800, LF909, or LF009 backflow preventers.

Specifications

  • Product Type: Anti-Siphon Vacuum Breaker
  • Series: LF288A
  • Size: 1/2 inch
  • Body Material: Lead Free* Brass
  • Disc Material: Silicone
  • Maximum Working Pressure: 125 PSI (8.6 bar)
  • Maximum Temperature: 180°F (82°C)
  • Inlet Connection: 1/2 inch Female NPT
  • Outlet Connection: 1/2 inch Female NPT
  • Chrome Hood: Yes

Dimensions (1/2 inch)

  • Overall Height (A): 2 in (50 mm)
  • Overall Length (B): 2 3/4 in (70 mm)
  • Inlet to Outlet Center (C): 1 1/2 in (38 mm)
  • Inlet to Top (D): 1 1/4 in (32 mm)

Weight (1/2 inch)

  • Weight: 8 oz (227 gm)

Certificates & Approvals

  • ASSE 1001
  • ANSI A112.1.1
  • CSA B64.1.1
  • cUPC®
  • NSF/ANSI 372

FAQs

What is the primary function of the Watts LF288A 1/2" Anti-Siphon Vacuum Breaker?

Its primary function is to prevent backsiphonage of contaminated water from entering a potable water supply, ensuring the safety of drinking water in low flow, non-continuous applications.

What are the key material components of this vacuum breaker?

The body is constructed from Lead Free* brass, and it features a durable silicone seat disc along with a chrome hood for protection and aesthetics.

What is the maximum operating pressure and temperature for this device?

This vacuum breaker has a maximum working pressure of 125 PSI (8.6 bar) and can withstand fluid temperatures up to 180°F (82°C).

Can this device be used in continuous pressure applications?

No, the Watts LF288A is an atmospheric type anti-siphon vacuum breaker and is not designed for continuous pressure applications or situations where backpressure may develop. Other Watts series are available for such needs.

Where should this anti-siphon vacuum breaker be installed relative to downstream piping?

It must be installed at least 6 inches above the highest point on the downstream piping. Additionally, there should be no shutoff valves located downstream of the device.