This rotary-vane compressor has a TEFC motor
Hydrovane V/VR series Tank-Mounted Simplex Compressors (photo) are air compressors offering 5–10 hp, 100–150 psi and up to 36.4 ft3/min. Tank mounted with a totally enclosed, fan-cooled (TEFC) motor, these rotary-vane compressors are engineered to meet stringent specifications. Their compact, simple, robust and integrated design allows them to be fitted anywhere undercover. Ideal for 100% duty cycle applications, they are easy to install and maintain, as well as extremely quiet (as low as 65 dBA). These models also offer configuration flexibility. The company says the performance of the Hydrovane models improve over time once parts are bedded within the rotary stator unit. — Gardner Denver Inc., Quincy, Ill.