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Pneumatic (compressed-air) fireless locomotives like this were often used to haul trains in mines, where steam engines posed a risk of explosion. This
Pneumatic (compressed-air) fireless locomotives like this were often used to haul trains in mines, where steam engines posed a risk of explosion. This one is preserved H.K. Porter, Inc. No. 3290 of 1923.
A pneumatic butterfly valve
A pneumatic butterfly valve
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Air compressor station in a power plant
Air compressor station in a power plant
Technical Illustration of portable single-stage air compressor
Technical Illustration of portable single-stage air compressor
Two-stage air compressor assembled on a horizontal tank and equipped with a Joule-Thomson (JT) type refrigerated compressed air dryer
Two-stage air compressor assembled on a horizontal tank and equipped with a Joule-Thomson (JT) type refrigerated compressed air dryer