Recent Blog Posts

Refrigeration Cycle: Open Drive vs Hermetic

September 22nd, 2026

Another way compressors are categorized is by the way the motor and compressor are mounted and contained. With “open drive” compressors, the motor and the compressor are mounted separately. The shaft that connects the motor to the compressor must be sealed to prevent refrigerant leakage from the compressor. Open-drive compressors are widely used in industrial applications. An […]

Ammonia Week in Review | September 18, 2026

September 18th, 2026

The Search Is On in this week’s edition of the Ammonia Week in Review… Ammonia Leak Contained at Murfreesboro Facility; Crews Monitoring Air Quality – An ammonia leak at a Murfreesboro facility has been contained after prompting an evacuation Friday afternoon. […keep reading] Deadly Ammonia Leak at Fertiliser Plant in Iraq – Two people were killed and 114 […]

Refrigeration Cycle: Rotary Vane Compressor

September 15th, 2026

“Rotary vane compressors” are a third type of positive displacement compressor. The design of these machines makes them well suited for “high volume”, low-pressure differential applications. As such, rotary vane compressors are essentially limited in application as “booster compressors” in two-stage systems. The maximum compression ratio of a rotary vane compressor is 4:1.  Like screw compressors, […]

Ammonia Week in Review | September 11, 2026

September 11th, 2026

Ammonia Disturbs Harvest in this week’s edition of the Ammonia Week in Review… Evacuations Canceled After Major Gas Leak in Troy, Missouri – The ammonia leak occurred during a delivery’s failed transfer system, resulting in significant amounts of anhydrous ammonia and a toxic vapor cloud. […keep reading] Refrigeration Cycle: Screw Compressors – This type of compressor utilizes two […]

MIWriter: A Single Module of PSMWriter

September 9th, 2026