Screw pump symbol

A screw pump moves liquid along the threads of one or more rotating screws. It handles viscous, multiphase and shear-sensitive fluids with steady flow.

Screw pump P&ID symbol
Screw pump symbol, as drawn on a P&ID

What the screw pump symbol means

A screw pump moves liquid along the threads of one or more rotating screws. It handles viscous, multiphase and shear-sensitive fluids with steady flow.

How it is drawn

A circle with a horizontal helix or zig-zag drawn through it, the screw.

The screw pump symbol in each standard

US legend (PIP PIC001)

Drawn as on most US-style legend sheets.

ISO 10628-28092

Pump, screw type. A double zig-zag inside the pump circle.

ISO SVG

German (DIN): Schraubenspindelpumpe. See DIN P&ID symbols.

Where you see it on a P&ID

On crude oil, multiphase, fuel and lube oil services.

Tag codes

The screw 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.

Frequently asked questions

What does the screw pump symbol look like on a P&ID?

A circle with a horizontal helix or zig-zag drawn through it, the screw.

What is a screw pump used for?

A screw pump moves liquid along the threads of one or more rotating screws. It handles viscous, multiphase and shear-sensitive fluids with steady flow. You will find it on crude oil, multiphase, fuel and lube oil services.

What tag does a screw pump have?

It is commonly tagged P. The exact tag format comes from the project numbering procedure and the legend sheets.

Is the screw pump symbol the same in ISA and ISO?

No. A double zig-zag inside the pump circle. The ISO 10628-2 registration number is 8092. Always check the legend sheets at the front of the P&ID set.

What is the screw pump called in German?

Schraubenspindelpumpe. On a German R&I-Fließschema it is drawn to DIN EN ISO 10628-2.

Every screw pump on your drawings, found for you.Deskely Extract reads ISA and ISO P&IDs alike, finds each tag with its type, system and subsystem, and hands your engineers a register to check instead of a spreadsheet to type.
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