Product Overview

AUTOMATIC AIR VALVES
NO. 27 AND NO. 37 AUTO-VENT SPECS
Correct problems and avoid trouble by installing these float-operated Auto-Vents.
They vent air from mains, solar panels, pipe lines, boilers, unit heaters, chillers,
convectors, radiant panels, coils, baseboard and free-standing radiation.
For All Hot Water and Solar Heating Systems
3196 N Kennicott Ave, Arlington Heights, IL 60641
[phone] • [e-mail]
PRODUCT
NUMBER
MOUNT CONNECTION
MAX. VENTING
PRESSURE
SIZE MATERIAL
No. 27 Horizontal mounting 1/8” I.P. female side connection 50 lbs. 3” x 2 1/2” Copper finish with a polished brass cover
No. 37 Horizontal mounting 1/8” I.P. vertical male bottom connection 50 lbs. 3” x 2 1/2” Copper finish with a polished brass cover
The No. 27 and 37 Auto-Vents® are dependable
float-operated valves. Their construction and internal
working parts are the same as the No. 7 Series
Auto-Vents® except smaller in size. Made of
non-ferrous metals.
SMALLER SIZED AUTO VENTS
NO. 27 AND NO. 37