3/8" Watts LFN388 Atmospheric Vacuum Breaker

Item Number: 0792064
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Regular price $210.37
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Estimated transit time: 2 to 5 Business Days

Brand - Watts

  • Lead Free* cast copper silicon alloy body
  • Weight: 40.0 lb
  • Full size orifice for maximum flow
  • Lightweight disc assembly prevents spilling
  • Chemical resistant silicone seat disc
  • Maximum Operating Temperature: 180°F (82°C)
  • Maximum Working Pressure: 125 PSI (8.6 bar)
  • Bottom Female NPT inlet and outlet connections
  • ASSE Standard 1001 and CSA B64.1.1 compliant

Description

The 3/8 inch Watts LFN388 Lead Free Anti-Siphon Vacuum Breaker is designed to prevent contaminated water from backsiphonage into potable water supplies. Constructed from a Lead Free* cast copper silicon alloy body with a chemical-resistant silicone seat disc and chrome hood, it ensures durability and tight sealing. This device features a full-size orifice for maximum flow and is suitable for hot or cold water applications up to 125 PSI and 180°F. Ideal for low-flow, non-continuous installations like laboratory equipment, it complies with ASSE Standard 1001 and CSA B64.1.1.

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Connections

  • The Watts LFN388 vacuum breaker features bottom inlet and outlet connections.
  • Both the inlet and outlet are 3/8 inch Female NPT threads, designed to connect directly to corresponding male NPT threaded piping or equipment.

Usage

This anti-siphon vacuum breaker is intended for non-continuous pressure applications to protect potable water from backsiphonage in low-flow installations. It is NOT for use under continuous pressure or where backpressure may develop.

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Additional Details

The Watts 3/8 inch Series LFN388 Anti-Siphon Vacuum Breaker is engineered to prevent the backsiphonage of contaminated water into the potable water supply. It is ideal for low flow, non-continuous hot or cold water health hazard installations.

This vacuum breaker features Lead Free construction, a full-size orifice for maximum flow, and a durable silicone disc for tight seating and resistance to heat and water hammer shock. It also incorporates a lightweight disc assembly and atmospheric vent to prevent spilling under all flow rates. The LFN388 is suitable for temperatures up to 180°F (82°C) and is ideally recommended for applications that use small amounts of water.

Construction & Features

  • Lead Free* cast copper silicon alloy body
  • Durable, chemical resistant silicone seat disc with chrome hood
  • Full-size orifice assures pipe size capacity and high water flow with minimal pressure loss
  • Lightweight disc assembly prevents spilling under all rates of flow
  • Designed for hot or cold water applications
  • Resistant to high heat and water hammer shock
  • Assures tight seating with the lightest contact

Applications

  • Laboratory Equipment
  • Bottle Washers
  • Chemical Dispensers
  • Dishwashers
  • Photographic Tanks
  • Shampoo Sinks
  • Soap Dispensers

Important Safety Note: This device is not designed, tested, or approved for use under continuous pressure or where there is a possibility that a backpressure condition may develop. For backpressure protection, install a Reduced Pressure Principle Backflow Preventer.

Specifications

  • Brand: Watts
  • Product Series: LFN388
  • Size: 3/8 inch
  • Body Material: Lead Free* cast copper silicon alloy
  • Seat Disc Material: Silicone
  • Hood Material: Chrome
  • Inlet/Outlet Connections: Bottom Inlet and Outlet
  • Connection Type: Female NPT
  • Maximum Operating Temperature: 180°F (82°C)
  • Maximum Working Pressure: 125 PSI (8.6 bar)

Certificates & Approvals

  • Lead Free* Compliant (wetted surface contains less than 0.25% lead by weight)
  • ASSE Standard 1001
  • CSA B64.1.1

FAQs

What is the primary function of the Watts LFN388 vacuum breaker?

The primary function of the Watts LFN388 is to prevent the backsiphonage of contaminated water into the potable water supply, protecting the drinking water from pollution.

Under what pressure conditions can this vacuum breaker be used?

This vacuum breaker is designed for non-continuous pressure applications. It must not be used under continuous pressure or where there is a possibility of a backpressure condition developing.

What materials is the Watts LFN388 constructed from?

The LFN388 features a Lead Free* cast copper silicon alloy body, a chemical-resistant silicone seat disc, and a chrome hood.

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

The Watts LFN388 is rated for a maximum operating temperature of 180°F (82°C) and a maximum working pressure of 125 PSI (8.6 bar).

What type of connections does the 3/8" LFN388 have?

This 3/8 inch vacuum breaker is equipped with bottom inlet and outlet connections, both featuring Female NPT threads for easy installation.