Specifications

Air Vents and Eliminators
70-6910 249
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EA122A Automatic Air Vent for Heating System Applications
The Honeywell EA122A Automatic Air Vent purges air from high
pressure mains and equipment in hot or cold closed 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.
• NBR seat disc and O-ring.
Dimensions in inches (millimeters) EA122A construction
Application: Hydronic heating and cooling
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)
Accessories:
Q122A1001 Safe waste connector (M20 thread connection)
Replacement Parts:
P122B1002 Cover assembly including cover, float assembly and vent
cap
M5491D
1/8 INCH
EXTERNAL
THREAD
9/16
(14)
5-1/4
(133)
4-3/4
(121)
1-7/8 (48)
7/16 (11)
M6585C
SHUTOFF IS
BUILT-IN.
NO DRAIN-DOWN
REQUIRED.
JUST TWIST AND YOU'RE
READY TO SERVICE!
TWIST AGAIN AND YOU'RE
BACK ON LINE.
RED VENT CAP
VENT LEVER
SPRING
BLACK COVER
ASSEMBLY
O-RING
SEAT AREA—
MAKE SURE
A
REA IS FREE OF
DIRT AND DEBRIS.
FLOAT
Product Number Connection Type Connection Size Description
EA122A1002 Male NPT 1/8 in. Automatic air vent with built-in shutoff valve and leakage guard, oil resistant