Tank:

• Material: sheet steel quality USD37.2
• Weldings: with robot in inert gas environment
• Cleaning: shot blasting 6 points
• Internal coating: enamel (glass) baked at 860° C in BL models
• Operating Pmax: 6 bar
• Testing Pmax: 15 bar for 5 minutes
• Operating Tmax: 95° C

Enclosure:

• Material: PVC leatherette in various colors

Exchanger:

• Type: permanent coil from steel tube with 33mm cross-section (tubo)

Insulation:

• Material: polyurethane without CFC & FCKW
• Density: 40 kg/m3
• Thickness: 50-65 mm

In BL800 – BL1000 boilers, in all models, the insulation is made of flexible polyurethane 75mm which is also removable for easier access in narrow passages.