Product Overview
Automatic air vent
for heating systems and radiators
series 501 - 5022 - 5026 - 5027 - 5080
Function
Series 501
Extra high capacity float type automatic air vent designed for use
on large pipes where large quantity of air is required to be released
from the system.
Series 5022 - 5023
High capacity float type automatic air vent designed for use on
manifolds or pipes in sealed heating systems.
Check valve on 5023
series allows an easy replacement of air vent without purging the
system.
Series 5026 - 5027
Float type automatic air vent designed to vent air that is released from
the water while being heated. Check valve on 5027 series allows an
easy replacement of air vent without purging the system.
Series 5080
Radiator air vent valve designed to remove automatically any air
trapped inside the heat emitters both during the filling of the system
and in normal operation.
CALEFFI
Product range
Series 501 Extra high capacity automatic air vent Size 3/4”
Series 5022 High capacity automatic air vent Size 1/2”
Series 5023 High capacity automatic air vent with check valve Size 1/2”
Series 5026 Automatic air vent Sizes 1/8” - 1/4”
Series 5027 Automatic air vent with check valve Sizes 1/8” - 1/4”
Series 5080 Automatic hygroscopic air vent for radiators Size 1/8”
01090/03 NA
cert. n
°
0003
ISO 9001
series
➫
501 5022 - 5023 5026 - 5027 5080
Materials
Body: brass brass brass chrome plated brass
Float: stainless steel PP PP -
Mechanism stem: stainless steel brass - -
Mechanism seal: Viton EPDM Silicon rubber -
Seals: EPDM EPDM EPDM EPDM
Performance
Max working pressure: 230 psi (16 bar) 150 psi (10 bar) 150 psi (10 bar) 150 psi (10 bar)
Max venting pressure: 90 psi (6 bar) 60 psi (4 bar) 90 psi (6 bar) -
Max working temperature: -4÷250°F (-20÷120°C) 250°F (120°C) 240°F (115°C) 212°F (100°C)
Connections: inlet 3/4” NPT female 1/2” NPT male 1/8” and 1/4” NPT male 1/8” NPT male
exhaust 3/8” female straight
Technical specification