How do the inside diameter and wall thickness of welded hose affect the flow rate and pressure of gas delivery?

Welding hose plays a vital role in gas transportation, and its inner diameter and wall thickness are one of the key factors that determine its performance. The inside diameter represents the diameter of the space inside the hose, while the wall thickness represents the thickness of the hose walls. These two factors jointly affect the gas delivery flow rate and pressure of the hose.

The size of the inner diameter directly affects the flow rate of the hose. A larger inner diameter means a wider channel where gas can flow through the hose more easily, allowing for greater flow. On the contrary, if the inner diameter is smaller, it will increase the resistance to gas flow, causing the flow to be restricted. Therefore, the selection of the inner diameter needs to be reasonably designed according to the required gas flow to ensure that the hose can meet the actual demand.

The wall thickness of the hose also has an important influence on the gas delivery flow rate and pressure. The thinner the wall thickness, the larger the effective space inside the hose, which can accommodate more gas, thereby helping to increase the flow rate. However, excessive reduction in wall thickness may affect the hose's pressure resistance and increase the risk of extrusion and deformation of the hose under high-pressure conditions. Therefore, when determining the wall thickness, it is necessary to take into account both the flow demand and the pressure resistance of the hose to ensure that the hose can transport gas safely and stably.

The inner diameter and wall thickness of the hose also directly affect the pressure bearing capacity of the hose. The smaller the inner diameter, the gas flow rate inside the hose increases, generating greater dynamic pressure, thereby increasing the pressure inside the hose. Conversely, increasing the wall thickness of a hose improves its ability to withstand external pressure, allowing it to transport gases at higher pressures. Therefore, the selection of the inner diameter and wall thickness needs to take into account the use of the hose under different pressure conditions to ensure that the hose can operate safely and reliably.