Which of the following are the three types of NH3 compressors?

The three types of NH3 (ammonia) compressors widely recognized in the industry are rotary vane, rotary screw, and centrifugal. Each of these types has specific characteristics that make them suitable for handling ammonia, which is commonly used in refrigeration and industrial applications.

Rotary vane compressors utilize sliding vanes to create separate chambers for compression, allowing for a smooth and continuous operation. This type is often preferred for applications requiring a steady flow and less pulsation.

Rotary screw compressors work through two interlocking screws that compress the gas as it is drawn into the chamber. This technology is efficient for higher capacity requirements and provides reliable and continuous operation without significant temperature fluctuations.

Centrifugal compressors use a rotating disk to increase the velocity of the gas, which is then converted into pressure. These compressors excel in applications that demand high flow rates and can efficiently handle large volumes of gas.

The other options may include components used in various forms of compression but do not accurately reflect the standard classifications specifically associated with NH3 compressors. Understanding these distinctions is crucial for ensuring efficient operation and compliance with safety standards in ammonia handling and usage.