CIRCOND - STAINLESS STEEL HEAT EXCHANGER FOR CONDENSING BOILERS

is a single purpose integrated and compact heat exchanger based on a simple stainless steel coil with an oval section.

The heat exchanger is composed by a combustion chamber, condensing area and an insulated metallic disk protected with silicon ceramic ber which separates the two areas.

• Compact
• Easy interchangeability
• Full range for domestic application
• Best performance and high reliability
• Modular for different output

Benefits of a single coil Heat Exchanger

• Autocleaning
• Minimum number of components
• High efficiency and robustness
• Stainless Steel
• Avoiding welding process

ALUCOND aluminium condensing heat exchanger for gas boilers.

Valmex realizes customized solutions according to customer’s needs.

ALUMINIUM CONDENSING HEAT EXCHANGER

Accessories:

• connection
• clip (fast on connection)
• gasket
• fume exhaust hood

ALUMINUM HEAT RECUPERATORS FOR SEMI CONDENSING GAS BOILERS

ALEX RS

Modularity and resistance

• Recuperator Alex-RS can be applied to the entire range of domestic boilers up to an output of 32 kW. Furthermore, thanks to the welded Aluminum body, thermal conductivity and corrosion resistance are optimized for the appliance.
• The product is completely welded using specific Aluminum alloys (Long Life Alloy) developed with main producers to increase corrosion resistance.

New recuperator in the boiler

• The combustion products go from the hood into the recuperator at a temperature range of 130-160 °C, while the water arrives from the circuit at a temperature range of 30-60 °C (depending on the boiler setting). The contact between the two mediums allows a further heat exchange and a gain of efficiency.
• The combustion products exit from the boiler at a temperature range of 50-70 °C, while the preheated water of the circuit goes into the primary heat exchanger.
• The possible condensation inside the recuperator is conveyed into a specific drainpipe.
• The exchange body of the recuperator is completely realized in Aluminum and consequently it is recommended to use inhibiters against corrosion, the antifreeze and the cleaning solutions.

Target and advantages

• Increase boiler efficiency (up to 104%)
• Easy to install and adapt
• High reliability thanks to the use of Long Life Aluminum alloy

WAFER

THERMAL OUTPUT (MAX) 32 kW

FUNCTIONAL CHARACTERISTICS maximum working pressure bar 3

maximum working temperature (water side) °C 93

maximum working temperature (fume side) °C 150

Two models:

• ALEX RS
• WAFER

Parallel-flow condensers have totally replaced the mechanical condensers (Cu/Al) in the automotive industry.The same is happening in all the cooling-related industries (commercial and industrial air conditioning, commercial and industrial refrigeration, etc…). The acceptance of the market for this new kind of condensers is growing every year as their applications are multiplying.

Parallel-flow condensers are completely made in aluminium and brazed in the Valmex plant with a braze welding process in a Nocolok furnace. All the components of the condenser are braze-welded to give solidity and perfect conductivity.

It is possible to produce the parallel-flow condensers with one level (21 mm or 25 mm thickness) or two levels (50 mm thickness). More elements are: frontal dimensions, pace and type of fins, circuits, connections, supports.

CIRCOND - STAINLESS STEEL HEAT EXCHANGER FOR CONDENSING BOILERS

is a single purpose integrated and compact heat exchanger based on a simple stainless steel coil with an oval section.

The heat exchanger is composed by a combustion chamber, condensing area and an insulated metallic disk protected with silicon ceramic ber which separates the two areas.

• Compact
• Easy interchangeability
• Full range for domestic application
• Best performance and high reliability
• Modular for different output

Benefits of a single coil Heat Exchanger

• Autocleaning
• Minimum number of components
• High efficiency and robustness
• Stainless Steel
• Avoiding welding process

ALUCOND aluminium condensing heat exchanger for gas boilers.

Valmex realizes customized solutions according to customer’s needs.

ALUMINIUM CONDENSING HEAT EXCHANGER

Accessories:

• connection
• clip (fast on connection)
• gasket
• fume exhaust hood

ALUMINUM HEAT RECUPERATORS FOR SEMI CONDENSING GAS BOILERS

ALEX RS

Modularity and resistance

• Recuperator Alex-RS can be applied to the entire range of domestic boilers up to an output of 32 kW. Furthermore, thanks to the welded Aluminum body, thermal conductivity and corrosion resistance are optimized for the appliance.
• The product is completely welded using specific Aluminum alloys (Long Life Alloy) developed with main producers to increase corrosion resistance.

New recuperator in the boiler

• The combustion products go from the hood into the recuperator at a temperature range of 130-160 °C, while the water arrives from the circuit at a temperature range of 30-60 °C (depending on the boiler setting). The contact between the two mediums allows a further heat exchange and a gain of efficiency.
• The combustion products exit from the boiler at a temperature range of 50-70 °C, while the preheated water of the circuit goes into the primary heat exchanger.
• The possible condensation inside the recuperator is conveyed into a specific drainpipe.
• The exchange body of the recuperator is completely realized in Aluminum and consequently it is recommended to use inhibiters against corrosion, the antifreeze and the cleaning solutions.

Target and advantages

• Increase boiler efficiency (up to 104%)
• Easy to install and adapt
• High reliability thanks to the use of Long Life Aluminum alloy

WAFER

THERMAL OUTPUT (MAX) 32 kW

FUNCTIONAL CHARACTERISTICS maximum working pressure bar 3

maximum working temperature (water side) °C 93

maximum working temperature (fume side) °C 150

Two models:

• ALEX RS
• WAFER