Small pressure reducers are generally used in construction sites, mainly due to their small size, light weight, ease of carrying and on-site installation, and suitability for the highly mobile operation characteristics of construction sites.
The welding pressure reducers used in construction sites are mainly made of brass material, which is currently the most mainstream choice.
Brass pressure reducers have the following advantages: good corrosion resistance, able to resist the corrosion of welding gases; Moderate mechanical strength, which can ensure structural strength and facilitate processing; Excellent sealing performance ensures no gas leakage; Relatively low cost, suitable for large-scale use on construction sites. In addition, brass material also has good thermal conductivity and fatigue resistance, and can withstand frequent adjustments and vibrations.
Some high-end pressure reducers will use stainless steel materials in key components such as valve cores and seats to improve wear resistance and service life, but the main structure is still mainly made of brass. The selection of brass pressure reducers for construction sites mainly considers their comprehensive performance, durability, and economy, which can meet the long-term use needs of on-site welding operations.
The commonly used types of pressure reducers on construction sites include:
Oxygen pressure reducer: used for gas welding and cutting operations to reduce the high pressure of 15MPa inside the gas cylinder to a working pressure of 0.1-0.4MPa.
Acetylene pressure reducer: Reduce the high pressure inside the gas cylinder from 1.5MPa to a working pressure not exceeding 0.15MPa, and use it in conjunction with oxygen.
Propane/liquefied petroleum gas pressure reducer: reduces the high pressure of 1.6MPa in the gas cylinder to a working pressure of 0.03-0.05MPa, used for flame cutting.
The selection of small pressure reducers for construction sites mainly considers their portability, operational flexibility, and cost-effectiveness, which can meet the needs of routine operations such as welding, cutting, and steel bar processing on site. For large industrial plants or fixed welding workstations, larger flow rate pressure reducers will be considered.