**All reachable directly from the HOMEPAGE**

**General data**

**Conversions**

**Power conversion calculator**

**Pressure conversion calculator**

**Temperature conversion calculator**

**Speed conversion calculator**

**Flow rate conversion calculator**

**Surface conversion**

**Conversion length - distance**

**Conversion volume - capacity**

## Specific weights

**Specific weight metal**

**Specific gravity wood**

**Specific gravity liquids solutions**

**Specific weight materials**

**Specific weight substances pile**

**Specific gravity gases vapors**

**Specific weights - Quick search by name**

## Varied

**Water Density Calculator**

**Greek alphabet**

**Italian English technical terms**

## Various tables

**Latent heat of fusion**

**Chemical elements - Names and dates**

**Keyboard symbols**

**Specific heat substances**

**Wind speed in Beaufort degrees**

**Conversion table inches millimeters**

**Fractions of inches**

**Heating**

## Pipes

**Pipes sizing calculator - millimeters**

**Pipes sizing calculation - Steel**

**Pipes sizing calculator - copper**

**Steel pipes (ND) - weight and surface calculation**

**Steel pipes in millimeters - surface weight calculation**

**Pipes properties**

**Sizing of steel pipes networks**

**Sizing of copper pipes networks**

## Varied

**Expansion vessels sizing calculator**

**Heat requirement - radiators**

**Calculating heating fuel cost**

## Pump

**Pump sizing calculator**

**Sizing anticondensate pumps**

**Pumps power calculation**

**Refrigeration**

**Refrigerant gas**

**Regolo refrigerant gas**

**Refrigerant pressure-temperature ratio**

**Diagrams for electrical parts - compressors**

**Elettricity**

**Elettric motor calculation - Power and current**

**Resistor Color**

**Choice of electric cables**

**Ohm's law - calculator**

**Power consumption - calculator**

**Cable sizing calculator**

**Power factor**

**Electric motors speed - Poles**

**Star delta connection**

**Type of switches**

**Low insulation**

## Resistances calculation

**Resistor color code calculator 4 bands**

**Resistor color code calculator 5 bands**

**Resistor color code calculator 6 bands**

**Air conditioning**

**Psychrometric calculator**

## Psychrometric diagrams

**Psychrometric charts Carrier**

**Mollier diagram**

## Air ducts

**Rectangular ducts - weight surface calculator**

**Circular ducts - weight surface calculator**

**Air ducts sizing - speed reduction**

**Air ducts sizing - constant load loss**

**Check air flow rectangular ducts**

**Check air flow circular ducts**

**Pressure losses in flexible ducts**

**Thicknesses ducts sheet metal**

**Curves calculation - ducts**

**Relationship: flow rate, section, air speed**

**Air ducts sizing fast calculator**

## Ventilation

**Heat Ventilation - calculator**

**Air preheating**

**Cool with outside air**

**Fan power consumption**

**Electric fans - Relationship**

**Calculation of the loss of the fan pressure**

**Pulleys diameter calculation**

**Trapezoidal transmission belts**

## Varied

**Characteristic values of three-phase refrigeration compressors**

**Summer cooling load - split system and fan coil**

**Humidification - calculation**

**Heat load - transformers**

## Conditioning tables

**Heat produced by people**

**Heat produced appliances**

**Outdoor air for person**

**Air changes per hour**

**Air saturation pressures**

**Typical values of water vapor production**

**Air diffusers - grilles and anemostats**

**Table for psychrometer**

**Heat Index**

## Air quality

**Air filters and rules**

## Varied

**Global temperatures**

**Summer air conditioning system**

**Heat Calculation appliances**

## Conditioning schemes and drawings

**Functional diagram air treatment unit**

**Metallurgy**

**Iron sections**

**Steel pipes**

**Iron solid bars**

**Iron beams**

**Irons reinforced concrete**

**Various pipes**

**Payload beams**

**Iron sections - weight calculation**

**Cad Blocks**

**Cad blocks - Conditioning**

**Cad blocks - Electrical**

**Public Works**

## Work time schedule

**Work time schedule - consecutive days**

**Work time schedule - ****Weekly**

**Various utilities**

**Editable calendar**

**Concentration test**