Open access
Jul 2026
Study on factors influencing the sealing performance of a polished-rod sealing device for a pumping unit
To identify the key factors affecting the sealing performance of a polished-rod sealing device under typical operating conditions, a beam pumping unit polished-rod sealing device was investigated in this study. Uniaxial tensile tests were performed on nitrile butadiene rubber, and the material constants of the two-para...
Yu Zhao, Jinsong Wang, Siqi Huang et al.
· Engineering Research Express · 0 citations