Enter the flow in m3/h or power in kW for the program to automatically select the pipe diameter and calculate the unit drop.

For devices with very low efficiency, the flow should be used.

Conversion from power to flow is done considering the efficiency of typical gas boilers.

The flow field in m3/h or power in kW can be filled as desired. After entering one value, the other value will be automatically converted.

The given selections should be analyzed by the designer and adjusted according to the specific project situation.

For long and complex installations, it is worth considering the use of smaller diameters.

The increase in natural gas pressure in a vertical section when rising by 1.0 m is 5.4Pa

Pipe selection is based on a velocity criterion of 6 m/s.

According to the regulation "on the technical conditions that gas networks and their location must meet," gas networks are divided into:

• low pressure - up to 10 kPa (0.1 bar) inclusive
• medium pressure - over 10 kPa (0.1 bar) to 500 kPa (5 bar) inclusive
• elevated medium pressure - over 500 kPa (5 bar) to 1.6 MPa (16 bar) inclusive
• high pressure - above 1.6 MPa (16 bar)

Required pressure