Also known as: PD$
PD has various meanings in the Technology category. Discover the full forms, definitions, and usage contexts of PD in Technology.
A characteristic of a pump or motor when a constant volume is delivered for each revolution or stroke. A characteristic of a pump or motor when a constant volume is delivered for each revolution or stroke.
TechnologyEnergy loss in a fluid as it passes through a flow passage. The loss is due to friction between fluid particles and can be measured as a decrease in pressure in the direction of flow. Pressure drop is the loss of pressure that occures when the melt is pushed into a section of the mould during the filling phase.
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