What are the advantages of direct-connected ethane compressor?

What are the advantages of direct-connected ethane compressor? 

1. The direct connection structure omits coupling parts, so the transmission chain is shorter, which reduces the transmission loss and improves the running efficiency of the whole machine. 

2. Reduce the installation, centering, maintenance and replacement work related to the coupling, reduce the fault points, and make the equipment operation and maintenance easier. 

3. The whole machine is compact in structure, occupies less space, can adapt to the working condition of ethane medium, has lower running vibration and better running stability.