The main differences between a general pressure reducer and a small pressure reducer in welding are their volume size, flow capacity, and applicable scenarios.
Small MIni body pressure reducers are small in size, light in weight, easy to carry and install on site, suitable for small-scale operations or individual gymnasts, relatively low in cost, easy to maintain, but have limited flow capacity. They are generally used for conventional welding operations such as gas welding and gas cutting.
Generally big pressure reducers have a larger volume and stronger flow output capacity. They are commonly used in large-scale welding operations such as industrial manufacturing and construction installation, requiring higher gas supply and relatively higher prices. However, they can provide more stable gas pressure and flow.
Both are basically the same in structure and working principle, which is to reduce the high-pressure gas (such as oxygen 15MPa, acetylene 1.5MPa) in the gas cylinder to the required low-pressure (oxygen 0.1-0.4MPa, acetylene not exceeding 0.15MPa) for operation, and maintain stable output pressure.