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DESCRIPTION
The air vents Art. Ent.MBT are used in heating and cooling systems to remove air,
which is trapped in the circuits during filling or which can form during normal operation.
The presence of air in the system lowers the water level in the storage chamber,
resulting in lowering of the float and opening of the gas ejector.
On the contrary, if there is no air in the circuit, the water will keep the swimmer
in a position that closes the gas ejector.
The gas microbubbles present in the liquid adhere to the large surfaces of these
Rings and lead to larger bubbles (due to coalescence), which due to their greater buoyancy to the
Rise up the top of the device and then off the ejector.
Automatic air discharge function.
Ensures better system performance, which leads to a reduction in administrative costs.
Avoids system noise problems and parts wear and tear.
High air discharge capacity.
Bidirectional.
Equipped with insulation.
BUILDING SPECIFICATIONS
Body: brass
Rings: stainless steel
O-ring seal: EPDM
Insulation: EPP
Thread: ISO 228
Maximum working temperature: + 120 ° C.
Minimum working temperature: - 10 ° C (as long as the liquid is in the liquid phase)
Maximum working pressure: 10 bar
Maximum outlet pressure: 6 bar
Maximum flow velocity: 1.5 m / s
Liquid compatibility: water, water and glycol solutions (maximum glycol content 50%)
- Only install the breather in a vertical position (on horizontal pipes),
with the gas ejector facing up.
- The bleeder is a bidirectional component, so it has independent of
the same efficiency as the direction of the river flowing through it.
- The ventilators are used in the hottest area of the system, as more micro-bubbles form there. In heating systems, the ventilator must therefore be immediately downstream of the generator or the
Mixing valve, preferably upstream of the circulation pump, are installed on the pressure line
(Illustration 1).
In the case of a cooling system, the vent must be installed at the inlet of the cooling unit in the return
(Illustration 2).
is not recommended.
- The automatic venting can be interrupted by simply tightening the locking screw.
To ensure correct functionality, it is sufficient to turn the screw at least one turn
unscrew from the fully closed position .
ensure that the water pressure remains below 6 bar (maximum outlet pressure value).
MAINTENANCE
Any accidental pressure on the sealing device can cause contaminated fluid to leak out of the valve, which can contaminate the seal seats.
In this case, the component must be dismantled and cleaned.
The presence of air in circuits is a common phenomenon and requires some special precautions to be taken to ensure that the system is working properly.
Failure to properly evacuate the air can cause a number of problems:
- Noises in the pipes, clamps and valves:
Noises in the pipes can occur especially when the system is started, if the
air introduced has not yet reached the vent.
Noise in the valves, on the other hand, is closely related to the presence of air microbubbles,
which experience a sudden drop in pressure when passing through the regulating organs and cause cavitation.
These air microbubbles are spheres between 0.02 and 0.10 mm. You can go to the dividers
between the water and the combustion chamber of the generator (generator microbubbles) form or there,
where the fluid threads reach very high speeds, for example near bottlenecks
the impellers of the system or the circulation pump (cavitation microbubbles).
The air that collects in the system can cause the circulation pumps to malfunction as they do not have a
Energy can be transferred to an incompressible liquid like water, but to a body A mixture of water and air that loses its properties.
The air also takes up volume in the pipes and emission ports to the detriment of the vector fluid,
which leads to bottlenecks and overpressure, which leads to a reduction in the yield of the system.
chemical formula cause corrosion of ferrous materials: 2Fe + 3H2O → Fe 2 O3 + 3H 2
Automatic air vent with insulation made of: brass housing, stainless steel rings,
O-ring seal made of EPDM, insulation made of EPP, ISO 228 thread.
Maximum working temperature + 120°C.
Minimum working temperature - 10°C (as long as the liquid is in the liquid phase).
Maximum working pressure 10 bar.
Maximum outlet pressure 6 bar.
Maximum flow velocity 1.5 m / s.
Liquid compatibility Water and glycol solutions (maximum percentage of glycol 50%).
Available in sizes 3/4 ”÷ 2”.
The data sheet can be found in "Media".
Link to product: https://www.tiemme.com/deu/radianti/5570_radianti-det_14168.php
The air vents Art. Ent.MBT are used in heating and cooling systems to remove air,
which is trapped in the circuits during filling or which can form during normal operation.
Functional principle:
The presence of air in the system lowers the water level in the storage chamber,
resulting in lowering of the float and opening of the gas ejector.
On the contrary, if there is no air in the circuit, the water will keep the swimmer
in a position that closes the gas ejector.
The separation of microbubbles is optimized thanks to the rings in the vent body .
The gas microbubbles present in the liquid adhere to the large surfaces of these
Rings and lead to larger bubbles (due to coalescence), which due to their greater buoyancy to the
Rise up the top of the device and then off the ejector.
By eliminating the air in the circuits, problems such as system noise and wear on parts are avoided to ensure better performance of the radiant clamps and reduce operating costs (see the section on "INFORMATION OFF." For more information DER ZEIT ") of this technical data sheet).
BENEFITS / STRENGTHS
Automatic air discharge function.
Ensures better system performance, which leads to a reduction in administrative costs.
Avoids system noise problems and parts wear and tear.
High air discharge capacity.
Bidirectional.
Equipped with insulation.
BUILDING SPECIFICATIONS
Body: brass
Rings: stainless steel
O-ring seal: EPDM
Insulation: EPP
Thread: ISO 228
TECHNICAL SPECIFICATIONS
Maximum working temperature: + 120 ° C.
Minimum working temperature: - 10 ° C (as long as the liquid is in the liquid phase)
Maximum working pressure: 10 bar
Maximum outlet pressure: 6 bar
Maximum flow velocity: 1.5 m / s
Liquid compatibility: water, water and glycol solutions (maximum glycol content 50%)
INSTALLATION / WARNINGS
- Only install the breather in a vertical position (on horizontal pipes),
with the gas ejector facing up.
- The bleeder is a bidirectional component, so it has independent of
the same efficiency as the direction of the river flowing through it.
- The ventilators are used in the hottest area of the system, as more micro-bubbles form there. In heating systems, the ventilator must therefore be immediately downstream of the generator or the
Mixing valve, preferably upstream of the circulation pump, are installed on the pressure line
(Illustration 1).
In the case of a cooling system, the vent must be installed at the inlet of the cooling unit in the return
(Illustration 2).
is not recommended.
- The automatic venting can be interrupted by simply tightening the locking screw.
To ensure correct functionality, it is sufficient to turn the screw at least one turn
unscrew from the fully closed position .
ensure that the water pressure remains below 6 bar (maximum outlet pressure value).
MAINTENANCE
Any accidental pressure on the sealing device can cause contaminated fluid to leak out of the valve, which can contaminate the seal seats.
In this case, the component must be dismantled and cleaned.
INFORMATION FROM TIEMME
AIR IN SYSTEMS: COMMON PROBLEMS
The presence of air in circuits is a common phenomenon and requires some special precautions to be taken to ensure that the system is working properly.
Failure to properly evacuate the air can cause a number of problems:
- Noises in the pipes, clamps and valves:
Noises in the pipes can occur especially when the system is started, if the
air introduced has not yet reached the vent.
Noise in the valves, on the other hand, is closely related to the presence of air microbubbles,
which experience a sudden drop in pressure when passing through the regulating organs and cause cavitation.
These air microbubbles are spheres between 0.02 and 0.10 mm. You can go to the dividers
between the water and the combustion chamber of the generator (generator microbubbles) form or there,
where the fluid threads reach very high speeds, for example near bottlenecks
the impellers of the system or the circulation pump (cavitation microbubbles).
The air that collects in the system can cause the circulation pumps to malfunction as they do not have a
Energy can be transferred to an incompressible liquid like water, but to a body A mixture of water and air that loses its properties.
The air also takes up volume in the pipes and emission ports to the detriment of the vector fluid,
which leads to bottlenecks and overpressure, which leads to a reduction in the yield of the system.
chemical formula cause corrosion of ferrous materials: 2Fe + 3H2O → Fe 2 O3 + 3H 2
Automatic air vent with insulation made of: brass housing, stainless steel rings,
O-ring seal made of EPDM, insulation made of EPP, ISO 228 thread.
Maximum working temperature + 120°C.
Minimum working temperature - 10°C (as long as the liquid is in the liquid phase).
Maximum working pressure 10 bar.
Maximum outlet pressure 6 bar.
Maximum flow velocity 1.5 m / s.
Liquid compatibility Water and glycol solutions (maximum percentage of glycol 50%).
Available in sizes 3/4 ”÷ 2”.
The data sheet can be found in "Media".
Link to product: https://www.tiemme.com/deu/radianti/5570_radianti-det_14168.php