INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS
AUTOMATIC AIR VENT
D2003 & D2004
FUNCTION
Automatic air vent valves are designed to remove the air
that accumulates in heating and air conditioning systems
without the need for manual intervention. This prevents
harmful phenomena that may compromise the life and the
performance of the heating system and which include:
•
Corrosion due to the oxygen.
•
Pockets of air trapped in the heating emitters.
•
Cavitation in the circulation pumps.
PRODUCT LIFE CYCLE
The life of the piping products is dependent on its application, frequency of use and freedom
from misuse. Compatibility with the system into which it is installed must be considered. The
properties of the fluid being transported such as pressure, temperature and the nature of the
fluid must be taken into account to minimise or avoid premature failure or non-operability.
A well-designed system will take into consideration all the factors considered in the piping
products design, but additionally electrolytic interaction between dissimilar metals in the piping
products and the system must be examined. Before commissioning a system, it should be
flushed to eliminate debris and chemically cleaned as appropriate to eliminate contamination,
all of which will prolong the life of the piping products.
LIMITS OF USE
These valves have been categorised in accordance with the Pressure Equipment Directive
2014/68/EU.
The fluid to be transported is limited to group 2 liquids i.e. non-hazardous.
On no account must these valves be used on any group 1 liquids, group 1 gases, group 2
gases or unstable fluids.
Note:- Valves are classified as SEP (sound engineering practice) and as such cannot be CE marked
and do not require a declaration of conformity.
