Honeywell EA122A Catalog Page
Air Vents and Eliminators
EA122A Automatic Air Vent for Non-Heating System Applications
The Honeywell EA122A Automatic Air Vent purges air from high pressure mains and equipment in hot or cold potable water systems.
• Includes removable float/valve assembly for easy servicing.
• Not for use in steam systems.
• Body, cover and float assembly made of thermoplastics.
• Internal parts made of corrosion-resistant and chemical-resistant materials for use with water systems containing light concentrations of propylene glycol, mineral oils, or petroleum-based oils.
• Oil resistant seal.
• EPDM seat disc and O-ring.
Dimensions in inches (millimeters)
1-7/8 (48) 
7/16 (11)
9/16
(14)
5-1/4
(133)
4-3/4
(121)
1/8 INCH EXTERNAL THREAD
M5491D
Application: Potable water installations
Dimensions (approximate): 5 1/4 in. long x 1 7/8 in. diameter (133 mm
long x 48 mm diameter)
Corrosion Resistant: Internal parts made of corrosion-resistant and chemical-resistant materials for use with hydronic systems that may contain concentrations of propylene or ethylene glycol.
Maximum Operating Temperature: 212 F (100 C) Maximum Operating Pressure: 90 psi (620 kPa)
EA122A construction
BLACK COVER ASSEMBLY
O-RING
SEAT AREA—
MAKE SURE AREA IS FREE OF DIRT AND DEBRIS.
RED VENT CAP
VENT LEVER
SPRING
FLOAT
SHUTOFF IS BUILT-IN.
NO DRAIN-DOWN REQUIRED.
JUST TWIST AND YOU'RE READY TO SERVICE! TWIST AGAIN AND YOU'RE BACK ON LINE.
M6585C
Accessories:
Q122A1001-Safe waste connector (M20 thread connection)
Replacement Parts:
900761-Red Vent cap for Air Vent
P122B1010-Cover assembly including cover, float assembly and vent cap
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Connection |
Connection |
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Product Number |
Type |
Size |
Description |
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EA122A1028 |
Male NPT |
1/8 in. |
Automatic air vent with built-in shut off valve; includes EPDM seat disc and O-ring. |
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EA122B117/U |
Male NPT |
1/8 in. |
Automatic Air vent without build-in shutoff valve or leakage guard; includes EPDM seat disc and O-ring. |
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<![endif]>Hydronic
<![if ! IE]><![endif]>Controls
70-6910 |
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219 |
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