Specification

The Ultimate in Distribution Efficiency
Air in system water
causes many problems.
Noisy pipes, valves, and other air-related noises are often accepted as
the signs of a functioning system. Excessive pump noise, cavitation,
and cascading in terminal units are considered normal.
But… air in system water can cause corrosion, reduced efficiency,
poorly heated or inadequately cooled rooms, accelerated component
wear and on-going complaints.
There is a device that will keep your system free of air … permanently.
Less maintenance, quiet operation, fewer costs!
The name:
SPIROVENT
Unlike conventional air eliminators or air scoops, the Spirovent
completely eliminates 100% of the free air, 100% of the entrained
air, and up to 99.6% of the dissolved air in the system. Consisting of
woven copper wire soldered to a copper tube, the patented Spirotube
creates a low velocity area in the Spirovent that scrubs the bubbles
from the water. The air bubbles rise and collect in the air chamber
before they are vented from the system via an integral automatic valve.
Air problems become a thing of the past.
Install the Spirovent
for Optimum Performance
Ideal placement of the Spirovent Junior is based on microbubble
separation and Henry’s Law*. Simply put, Henry’s Law states that air
is released from water as the temperature increases or the pressure
decreases. In hydronic heating systems, the Spirovent should be
installed in the boiler supply line where the temperature is highest.
Should the circulator be located on the supply line as well, the Spirovent
should be installed between the boiler and the circulator where pressure
is also the lowest.
Advantages to the Installer and End-User
c
Maintenance free.
c
No venting required.
c
Vent head is designed to stay dry. Dirt and leak resistant.
c
1
/2" male thread port for pressure testing or remote venting
of unwanted gases.
c
Quiet operation.
c
Increased component life.
c
Reduced oxygen-based corrosion and pump cavitation.
The Key Difference
The Spirotube is the core of the Spirovent. It allows the Spirovent
to scrub out 100% of the free air, 100% of the entrained air, and
up to 99.6% of the dissolved air in the system. Even the smallest
microbubbles coalesce and rise. Air is eliminated, component life
and heat transfer abilities are increased; oxygen-based corrosion
and pump cavitation are reduced; and annoying gurgling, cascading,
and other air-related system noises are eliminated.
Permanently Air-Free System Water
* For more detailed technical
information, ask about our Spirotism
booklet .
Unique valve mechanism is
guaranteed not to leak and cannot
be shut off. Standard thread for vent
pipe connection or pressure testing.
Specially constructed air chamber
to protect the valve mechanism
from dirt. Sufficient volume to
handle pressure fluctuations.
Solid brass construction for
extended service life.
The unique Spirotube is the core
of the Spirovent. Designed to trap
even the smallest microbubbles,
yet it offers little resistance to flow.
Threaded, sweat and press fit
connections available.
1
/2" tank mount (not available
on vertical models).
Circulator
Baseboard
Spirotop
Spirovent
Boiler
Pressure
Reducing
Valve
Expansion
Tank
Backflow
Preventer
Shut-o
Valve
Water
Supply