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A circle with a solid triangle pointing out of it.
Also known as: Fluid power pump symbol, Hydraulic motor symbol
A circle with a filled triangle is a pump or a motor, and the triangle's direction says which: pointing out for a pump delivering flow, pointing in for a motor driven by it. A solid triangle means hydraulic and a hollow one means pneumatic.
Denotes a hydraulic pump, drawn as a circle with a solid triangle whose point faces outwards along the delivery line.
Contexts: Technical drawing
Reverses to become a motor when the triangle points inwards, the same outline serving both directions of energy conversion.
Contexts: Technical drawing
Distinguishes hydraulic from pneumatic components by whether the triangle is solid or hollow, a rule that runs through the whole ISO 1219 set.
Contexts: Technical drawing
A circle with a solid triangle inside it whose apex touches the circle at the point where a line leaves it.