What Is The Material Selection For Components When Purchasing Stainless Steel Gear Pumps
Oct 08, 2025
The material selection for stainless steel gear pumps can be divided into: 304, 316, 316L, polymer materials, polytetrafluoroethylene, nylon, and so on. The more suitable stainless steel gear pump can be selected based on the medium to be conveyed by the stainless steel gear pump. Stainless steel gear pump is a new type of mechanical device for conveying liquids, which has the advantages of simple structure, safe and reliable operation, convenient use and maintenance, continuous and uniform liquid output, and stable pressure. There are several common situations:
Firstly, when stainless steel gear pumps transport flammable and explosive media such as toluene, gasoline, diesel, and ethanol, copper gears are generally used for gear pumps from an explosion-proof perspective, mainly to prevent sparking during the transportation process. However, stainless steel gear pumps are considered from the perspective of corrosion prevention. In some cases, copper materials cannot be used, or in some cases, the medium transported does not have lubricity, which will reduce the service life of the gear pump. Through our company's technological improvements, the new generation of stainless steel gear pumps are specially designed for explosion-proof and non lubricating media. The gears are made of polytetrafluoroethylene polymer material, which not only solves the explosion-proof performance of stainless steel gear pumps, but also improves the wear resistance life of the gears, greatly enhancing the overall service life of the gear pumps.
Secondly, for stainless steel gear pumps transporting highly corrosive media, 316 and 316L stainless steel materials should be selected.
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