Brochure

63-8702 99
Air Vents and Eliminators
EA122A Automatic Air Vent for Heating System Applications
The 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)
M5491D
1/8 INCH
EXTERNAL
THREAD
9/16
(14)
5-1/4
(133)
4-3/4
(121)
1-7/8 (48)
7/16 (11)
EA122A construction
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
Application: Hydronic heating and cooling
Operating Temperature Range: 212°F Maximum (100°C Maximum)
Maximum Safe Operating Pressure (psi): 90 psi
Maximum Safe Operating Pressure (kPa): 620 kPa
Approximate, Dimensions: 5 1/4 in. long x 1 7/8 in. diameter (133 mm
long x 48 mm diameter)
Comments: Internal parts made of corrosion-resistant and chemical-
resistant materials for use with hydronic systems that may contain
concentrations of propylene or ethylene glycol.
Material Number Connection Type Connection Size (in.) Description
EA122A1002 Male NPT 1/8 in. Automatic air vent with built-in shutoff valve and leakage guard, oil resistant