Brochure

63-8702 97
Air Vents and Eliminators
EA79 Industrial Air Vents
The EA79 Industrial Air Vent purges air from high pressure mains and
equipment in hot or cold closed water systems.
• Built-in shutoff valve for servicing without system shutdown.
• Built-in vacuum breaker.
• Removable float/valve assembly for easy servicing.
• Safety drain connection and vent cap with leakage guard.
• Brass shell construction.
• Internal parts made of corrosion-resistant and chemical-resistant
materials for use with water systems containing propylene glycol,
mineral oils, or petroleum-based oils. Replaces Hoffman # 79 or
Dole # 75 Vents.
• Maintains quiet and efficient operation.
Dimensions in inches (millimeters)
5
(128)
4-11/16
(120)
M6095D
3/4 INCH
NPT EXTERNAL
THREAD
1/2 INCH NPT
INTERNAL THREAD
OPEN CLOSED
CAUTION!
!
Device may be hot
Do not use tools to adjust the e
damage to vent may result. us
only to adjust vent. A wrench
only on hex during installation
1/2 (12)
1-7/8 (48)
EA79 construction
M6096B
BLACK COVER
ASSEMBLY
SEAT AREA—
MAKE SURE
AREA IS FREE OF
DIRT AND DEBRIS.
OUTER RING
RED VENT
CAP WITH
LEAKAGE GUARD
O-RING
SPRING
VENT LEVER
FLOAT
EA79 capabilities
M2760B
250
300
200
150
100
50
0
CUBIC FEET/HOUR
0102030405060708090 100 110 120 130 140 150
PRESSURE (PSI)
Application: Hydronics
Operating Temperature Range: 250°F Maximum (120°C Maximum)
Maximum Safe Operating Pressure (psi): 150 psi
Maximum Safe Operating Pressure (kPa): 1034 kPa
Approximate, Dimensions: 5 in. long x 1 7/8 in. diameter (128 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
EA79A1004 3/4 in. male NPT pipe thread with 1/2 in. female NPT pipe thread 3/4 in. Industrial automatic air vent