Welch ChemStar Series

Precision Plus proudly supplies high-quality OEM-equivalent spare parts for the Welch Chemstar Series vacuum pumps, trusted for their durability and chemical resistance in demanding laboratory and industrial environments. The Chemstar line, including models like the 1376N, 1400N, and 1402N, features belt-driven rotary vane technology with corrosion-resistant components, large oil reservoirs for contaminant dilution, and low pump RPM to reduce wear and extend service life. Designed specifically for harsh chemical applications, Chemstar pumps are ideal for use in Schlenk lines, freeze dryers, glove boxes, vacuum ovens, and high-boiling-point distillations. 

At Precision Plus, we offer precision-engineered replacement parts—such as vanes, gaskets, filters, and seals—that match or exceed OEM standards, ensuring reliable performance and long-term value. Our parts maintain the integrity of your vacuum system without compromising on quality or cost. With fast shipping and expert support, Precision Plus is your go-to partner for maintaining the performance and longevity of your Welch Chemstar vacuum pumps.