Honeywell EA122A Catalog Page

Air Vents and Eliminators

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
AREA IS FREE OF
DIRT AND DEBRIS.

FLOAT

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) EA122A construction

Controls

Hydronic

Application: Potable water installations
Dimensions (approximate):

long x 48 mm diameter)

Corrosion Resistant: Internal parts made of corrosion-resistant and

chemical-resistant materials for use with hydronic systems that may

5 1/4 in. long x 1 7/8 in. diameter (133 mm

contain concentrations of propylene or ethylene glycol.

Maximum Operating Temperature: 212 F (100 C)
Maximum Operating Pressure: 90 psi (620 kPa)

Product Number

Connection
Type

Connection
Size Description

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

EA122A1028 Male NPT 1/8 in. Automatic air vent with built-in shut off valve; includes EPDM seat disc and O-ring.

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.

70-6910 219