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Honeywell EA122 Air valve ( on Aeration systems)

SKU: 10199000003 | 3171640004
Regular price £28.66
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Technical Resources

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Product information

    The automatic Honeywell air vent EA122 is suitable for heating systems and other hot water systems (not potable water) which require the efficient automatic removal of air from water. The vacuum break on the bottom of the valve prevents an air lock forming and encourages air to be released from water.


    The air vent can be fitted anywhere in the positive pressure side of the system where air is likely to be trapped. Air vents should always be fitted in an accessible area, which can be seen and serviced easily.

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    Features and benefits

      Integral stop valve, enables seat to be cleaned without draining the system down Simple service and cleaning Vacuum break ensures air collection Expanding discs under cap prevent leaks due to dirt under the seat Valve body has a 1/8in BSP and 3/8in BSP thread. A 1/8in to 1/2in BSP adaptor is supplied to enable connection to a 1/2in. BSP female tee

      • Integral stop valve, enables seat to be cleaned without draining the system down
      • Simple service and cleaning
      • Vacuum break ensures air collection
      • Expanding discs under cap prevent leaks due to dirt under the seat
      • Valve body has a 1/8in BSP and 3/8in BSP thread.
      • A 1/8in to 1/2in BSP adaptor is supplied to enable connection to a 1/2in. BSP female tee

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      Frequently Asked Questions

      What systems is the Honeywell EA122 Air valve suitable for?
      The Honeywell EA122 Air valve is suitable for heating systems and other hot water systems that require automatic removal of air, excluding potable water systems.
      How does the vacuum break feature of the Honeywell EA122 improve system performance?
      The vacuum break at the bottom of the Honeywell EA122 Air valve prevents air locks from forming and helps to encourage the efficient release of trapped air from water in the system.
      Where should I install the Honeywell EA122 Air valve in my system?
      The air vent should be installed on the positive pressure side of your system in an accessible location where air is likely to accumulate for easy maintenance and servicing.
      Can the Honeywell EA122 Air valve be cleaned without draining my system?
      Yes, the valve features an integral stop valve that allows you to clean the seat without draining the entire system, facilitating easy maintenance.
      What connection sizes are available for the Honeywell EA122 Air valve?
      The valve body has 1/8in BSP and 3/8in BSP threads, with a supplied adaptor to connect to a 1/2in BSP female tee, making it versatile for different system configurations.