SAFETY INSTRUCTION
This safety alert symbol will be used in this manual to draw attention to safety related
instructions. When used, the safety alert symbol means
CAUTION:
All work must be performed by
personnel trained in the
proper application, installation, and maintenance of systems in accordance
with all applicable codes and ordinances.
CAUTION:
Over-tightening and breakage can occur with the use of T
®
pipe joint compounds. T
®
provides lubricity so that care must be
exercised not to over-tighten joints. Failure to follow these instructions
could result in property damage and/or personal injury.
WARNING:
System
are under pressure and temperature can be
hazardous. Be sure the pressure has been reduced to zero and the
system temperature is below 100°F (38°C). Failure to follow these
instructions could result in property damage and/or personal injury.
Function
High Capacity Automatic Air Vent -
High Capacity Automatic Air Vent with check valve
38521.02
www.cal
.com
5022-5023 Series
© Copyright 2018 Caleffi
Technical Characteristics
or pipes in sealed heating systems. Check valve on 5023 series allows an
easy replacement of air vent without purging the system.
These items are designed for use in closed hydronic systems. Do not use
in plumbing applications. These items do not meet the low-lead
plumbing standards of U.S. and Canada.
Connection:
1/2” NPT male
Materials: Body
Brass
Float
PP
Seals
peroxide-cured EPDM
Maximum working pressure: hot water
150 psi (10 bar)
Maximum venting pressure:
60 psig (4 bar)
Maximum working temperature:
250
˚
F (120
˚
C)
ATTENTION: BECOME ALERT!
YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY
RESULT IN A SAFETY HAZARD.
WARNING:
This product can expose you to chemicals including lead, which is
known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.