Aluminum Reducing Coupling API Coupling 

Aluminum Reducing Coupling API Coupling The coupling is also called coupling, coupling and back wheel. The coupling is the main component connecting the pump shaft and the prime mover and transmitting power. Generally, flexible coupling is used for pump coupling to compensate the relative displacement of pump shaft and motor shaft, reduce the requirements for accurate alignment of coupling installation, mitigate impact, change the natural vibration frequency of shaft system, and avoid hazardous vibration. Couplings are used to connect two joints of tubing coupling or casing pipe together. Couplings are short length of heavy wall pipe with the same threads on each end. EASTSUN manufactures tubing coupling and casing tubing coupling strictly comply with API 5CT latest standard. Size Grade NUE EUE Special clearance 2 3/8" J55/K55/M80/L8…