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Glite Dictionary
🔫 Ammunition remover 📦 Goods remover ⚙️ Pressure valve
unloader

unloader

6.7
A part that reduces pressure in a compressor when it starts or stops
  • noun
  • /ʌnˈloʊdər/
  • Specialized
translation icon : válvula de descarga
  • To prevent damage, the unloader activated when the system reached maximum pressure.

Examples

  • Accessories such as foot valves, unloaders, pressure regulators, and safety relief valves are available.

    Academic text (1997)

  • After the compressor shut down, the unloader helped relieve the pressure safely.

  • The technician installed a new unloader to ensure the pump operates smoothly during start-up.

Synonyms

relief valve
vsunloader
  • Specialized
4 3.9

A device that opens automatically to let out extra pressure

reduces pump or compressor load during startup and shutdown
deflater
vsunloader
4.8

A tool or person that lets air out of things like tires

is used with pumps and compressors rather than with small inflatable items

Surface Forms

unloader singular
unloaders plural

Morphology

unloader = unload (transparent) = un + load + er

The verb 'unload' (un- + load) is productive and the agent/instrument suffix '-er' yields a clear meaning 'device that relieves load/pressure'.

Etymology

The word unloader comes from un- meaning 'reverse' or 'remove' and load meaning 'work or pressure'. So an unloader is a part that 'removes the load' from a pump or compressor, reducing pressure or the amount of work the machine must do.