Watts LF8B Hose Bibb Vacuum Breaker - Domestic

Item Number: 0792086
1 1
$49.50
In Stock (10)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Watts
  • Inlet Connection: 3/4" Female Hose Thread
  • Weight: 18.7 lb
  • Outlet Connection: 3/4" Male Hose Thread
  • Maximum Operating Pressure: 125 PSI
  • Maximum Temperature: 180°F
  • Lead Free brass construction
  • Tamper-resistant break-away set screw
  • Suitable for non-continuous pressure applications
  • ASSE 1011 and CSA B64.4 certified

Description

The Watts LF8B Hose Connection Vacuum Breaker is a 3/4 inch Lead Free device designed to prevent backsiphonage of contaminated water into potable water supplies when using portable hoses. Featuring a durable brass body, stainless steel working parts, and a rubber diaphragm, it ensures reliable, positive seating. This vacuum breaker includes a tamper-resistant break-away set screw and allows for easy sill cock drainage. It is certified to ASSE 1011 and CSA B64.4, with a maximum operating pressure of 125 PSI and temperature of 180°F, making it suitable for various indoor and outdoor non-continuous pressure applications.

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Connections

  • The inlet connection is a 3/4 inch standard female hose thread, designed to screw directly onto a 3/4 inch male hose thread faucet or sill cock.
  • The outlet connection is a 3/4 inch standard male hose thread, compatible with 3/4 inch female hose fittings or hoses.

Installation Notes

This vacuum breaker can be installed in either a vertical or horizontal orientation. It is equipped with a break-away set screw for tamper-resistant installation and is designed to allow sill cocks to be drained. Ensure the sill cock has at least four full threads for proper installation. This device is not intended for continuous pressure applications.

Warranty Information

Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge. THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control. This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.
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Additional Details

The Watts LF8B Hose Connection Vacuum Breaker allows the attachment of portable hoses to hose thread faucets while preventing the reverse flow of contaminated water into the potable water supply due to backsiphonage.

Construction & Features

  • Features a Lead Free brass body construction (copper silicon alloy).
  • Equipped with stainless steel working parts for enhanced longevity.
  • Includes a durable rubber diaphragm and disc for consistent, positive seating.
  • Designed with a break-away set screw for tamper-resistant installations.
  • Allows for easy draining of sill cocks by loosening/removing and re-tightening the ribbed stem tip at the valve outlet.

Applications

  • Ideal for health hazard installations requiring non-continuous pressure.
  • Suitable for use with service sinks, swimming pools, photo developing tanks, laundry tubs, wash racks, dairy barns, marinas, and general outside gardening uses.

NOTICE: This device is not to be used under continuous pressure or where a backpressure condition may develop. It should only be used in areas where spillage of water will not cause damage. Check with local inspection authorities for specific installation requirements.

Specifications

  • Inlet Connection: 3/4 inch Standard Female Hose Thread
  • Outlet Connection: 3/4 inch Standard Male Hose Thread
  • Maximum Operating Pressure: 125 PSI (8.6 bar)
  • Maximum Temperature: 180°F (82°C)
  • Body Material: Lead Free Copper Silicon Alloy (Brass)
  • Working Parts Material: Stainless Steel
  • Seal Material: Durable Rubber
  • Draining Feature: Yes, for sill cocks
  • Installation Orientation: Vertical or Horizontal
  • Country of Origin: Made in America

Dimensions

  • Overall Height (A): 1.75 inches
  • Overall Width (B): 1.19 inches
  • Weight: 4.6 oz

Certificates & Approvals

  • ASSE 1011
  • ANSI A112.1.3
  • UPC
  • IAPMO Listed
  • CSA B64.4

FAQs

What is the primary function of the Watts LF8B vacuum breaker?

The primary function is to prevent contaminated water from flowing back into the potable water supply (backsiphonage) when a portable hose is attached to a hose thread faucet.

Is the Watts LF8B suitable for continuous pressure applications?

No, this device is specifically designed for non-continuous pressure applications. It should not be used under continuous pressure or where a backpressure condition might develop.

What are the connection sizes for this vacuum breaker?

The vacuum breaker features a 3/4 inch standard female hose thread for the inlet connection and a 3/4 inch standard male hose thread for the outlet connection.

What materials is the Watts LF8B constructed from?

It is constructed with a Lead Free copper silicon alloy (brass) body, stainless steel working parts for longevity, and a durable rubber diaphragm and disc for reliable sealing.

Does the LF8B model include a tamper-resistant feature?

Yes, the Watts LF8B is furnished with a break-away set screw, which provides a tamper-resistant installation for added security.