Reciprocating (plunger) pump

ISO 10628-2 (group 15, liquid pumps) / PIP PIC001

Drawn as

A cylinder (rectangle) with a piston or plunger (T shape) inside, connected to a crank circle, with suction and discharge connections on the cylinder head.

Meaning

Positive displacement plunger pump (API 674): high-pressure injection, glycol circulation, mud pumps and pigging. Becomes reciprocating-pump (use mud-pump for drilling mud pumps).

Variants

ISO draws a circle with a piston mark inside
Pulsation dampeners and a relief valve on the discharge are usually drawn nearby