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WATTS Vacuum Breaker

Watts vacuum breakers are backflow preventers that attach to portable hoses, hose thread faucets or water supply fixtures and prevent the back siphonage / reverse flow of polluted or non-potable ...Read More

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WATTS 8BA
WATTS 8BIB
WATTS 8BCC
StyleModelMaterialPrice
A
8B		Brass£28.66
B
8BI		Brass£16.64
C
8BC		Chrome-Plated Brass£53.92

Working Mechanism

  • Thread a Watts vacuum breaker onto the hose bibb & hose. Then tighten the attached set screw till its head breaks off.
  • These vacuum breakers allow passage of water in normal conditions and prevent the entry of air. However, when the water pressure at the unit's location decreases below a certain level, the volume breaker starts intaking air to break the suction effect caused by vacuum ( low pressure), thereby preventing backflow or back siphoning.
  • They can be drained off in winters after use by removing the hose and lightly pulling down the knurled tip on the stem.

Features

  • Watts vacuum breakers feature brass construction with stainless steel working parts and have rubber diaphragm & disc for corrosion resistance and durability.
  • They can be screwed directly onto a sill cock and require no plumbing changes.
  • These Watts 8 Series vacuum breakers can operate at a maximum pressure of 125 psi and a maximum temperature of 180 degrees F.
  • They have GHT type connections on both male & female ends with 3/4 inch inlet & outlet size.
  • These vacuum breakers have a break-away set screw for tamper resistance.
  • Selected models of these Watts vacuum breakers are made of chrome plated brass for protection against scratches and easy cleaning.

Compatible Accessories

  • Watts Vacuum Breaker Kits: They include replacement components like check assembly, springs & O-rings for repairing faulty, old or worn out parts of these 8 Series Watts vacuum breakers.

Standards and Approvals

  • ANSI A112.1.3
  • ASSE Standard 1011
  • CSA B64.2
  • IAPMO (International Association of Plumbing and Mechanical Officials) listed

Frequently Asked Questions

How can users perform maintenance operations on these Watts vacuum breakers?

  • The breaker should be periodically checked for leaks & breakages. Replace the seals & other components if possible.
  • The residual water should be drained away in winters to prevent blowout and the valves should be opened halfway to allow air to escape.

    • Does a vacuum breaker prevent freezing?

    Yes, a properly drained out vacuum breaker can prevent freezing of the fixtures in winters to protect them from cracks.

    What is the difference between a backflow preventer and a vacuum breaker?

    Backflow preventers prevent the reverse flow of fluids irrespective of the type of fluids and their location. A vacuum breaker is a specialised backflow preventer that stops non potable water from back siphoning into the potable water supply.

    What is Back siphonage?

    Back siphonage or backflow in a system occurs when a negative pressure (vacuum or partial vacuum) zone is created in the supply piping. It results in siphoning effect from the contaminated water sources into the drinkable water supply lines.

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