What type of LPG system line pressure is limited to a maximum of 3.5 kPa?

A low pressure line in an LPG (Liquefied Petroleum Gas) system is indeed limited to a maximum of 3.5 kPa. This is crucial for safety and functionality within gas systems installed in marine applications and other environments. Low pressure lines are designed to operate at lower pressure levels to prevent hazards like leaks or excessive pressure buildup that can result in dangerous situations such as explosions or equipment failure.

In the context of LPG systems, low pressure is typically utilized for appliances that require a steady and controlled supply of gas, such as stoves, heaters, and other gas-fueled equipment. By design, these lines ensure that the gas flow is appropriate for safe use while minimizing risks associated with higher pressure lines, which are meant for different applications and thus operate at much higher pressures.

Understanding these pressure classifications is essential for anyone involved in the installation, maintenance, or certification of LPG systems, as it directly impacts how systems are designed and the safety standards that must be adhered to.