Gear pump symbol
A gear pump is a rotary positive displacement pump that moves liquid between the teeth of two meshing gears. It gives smooth flow of viscous fluids.
What the gear pump symbol means
A gear pump is a rotary positive displacement pump that moves liquid between the teeth of two meshing gears. It gives smooth flow of viscous fluids.
How it is drawn
A circle with two smaller circles inside it side by side, the two gears.
The gear pump symbol in each standard
Drawn as on most US-style legend sheets.
German (DIN): Zahnradpumpe. See DIN P&ID symbols.
Where you see it on a P&ID
On lube oil, fuel oil, hydraulic and viscous product services.
Tag codes
The gear pump is commonly tagged:
- P
Tag formats follow the project numbering procedure. For instruments, the letters follow ISA 5.1, explained on the instrument symbols page.
Related symbols
Frequently asked questions
What does the gear pump symbol look like on a P&ID?
A circle with two smaller circles inside it side by side, the two gears.
What is a gear pump used for?
A gear pump is a rotary positive displacement pump that moves liquid between the teeth of two meshing gears. It gives smooth flow of viscous fluids. You will find it on lube oil, fuel oil, hydraulic and viscous product services.
What tag does a gear pump have?
It is commonly tagged P. The exact tag format comes from the project numbering procedure and the legend sheets.
Is the gear pump symbol the same in ISA and ISO?
No. Two small gear wheels inside the pump circle. The ISO 10628-2 registration number is 8091. Always check the legend sheets at the front of the P&ID set.
What is the gear pump called in German?
Zahnradpumpe. On a German R&I-Fließschema it is drawn to DIN EN ISO 10628-2.
- In production since 2014
- Thousands of daily users
- On MODEC FPSO projects since 2016