User Guide

SAFETY INSTRUCTION

This safety aler

t symbol will be used in this manual to draw attention to safety related

instructions. When used, the safety alert symbol means

CAUTION:

proper application, installation, and maintenance of systems in accordance

with all applicable codes and or

dinances.

CAUTION: Over-tightening and

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.

ARNING:

pressure or 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 r

esult in property damage and/or personal injury.

Function

Automatic Air Vent -

Automatic Air Vent with check valve

38459.03

www.cal .com

CALEFFI

5026-5027 Series

Float type automatic air vent designed to vent air that is released from the

water while being heated. Check valve on 5027 series allows for 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.

Technical Characteristics

Connection: 1/8” NPT male

1/4” NPT male

Materials: Body Brass

Seals peroxide-cured EPDM

Maximum working pressure: hot water 150 psi (10 bar)

Maximum venting pressure: 90 psig (4 bar)

Maximum working temperature: 240˚ F (115˚ 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.

PAGE 1
CALEFFI www.cal .com 38459.03 Automatic Air Vent Automatic Air Vent with check valve © Copyright 2018 Caleffi Function 5026-5027 Series Float type automatic air vent designed to vent air that is released from the water while being heated. Check valve on 5027 series allows for 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.
PAGE 2
Installation The vent is installed in the vertical position, on the air separator, on manifolds, on riser pipes and generally in parts of the system where a concentration of air pockets is to be expected. Check valve on 5027 series should be installed prior to air vent. Insure air vent is properly lined-up with female check valve guide.