Basket strainer symbol
A basket strainer holds a removable mesh basket in a pot below the line. It handles larger flows and more debris than a Y-strainer.
What the basket strainer symbol means
A basket strainer holds a removable mesh basket in a pot below the line. It handles larger flows and more debris than a Y-strainer.
How it is drawn
A box or pot below the line with a dashed basket inside.
The basket strainer symbol in each standard
Drawn as on most US-style legend sheets.
Strainer. ISO has no separate basket strainer. The general strainer is used, with the type written next to it.
ISO SVG
German (DIN): Korbfilter. See DIN P&ID symbols.
Where you see it on a P&ID
On pump suctions, cooling water and large liquid lines.
Tag codes
The basket strainer is commonly tagged:
- S
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 basket strainer symbol look like on a P&ID?
A box or pot below the line with a dashed basket inside.
What is a basket strainer used for?
A basket strainer holds a removable mesh basket in a pot below the line. It handles larger flows and more debris than a Y-strainer. You will find it on pump suctions, cooling water and large liquid lines.
What tag does a basket strainer have?
It is commonly tagged S. The exact tag format comes from the project numbering procedure and the legend sheets.
Is the basket strainer symbol the same in ISA and ISO?
No. ISO has no separate basket strainer. The general strainer is used, with the type written next to it. The ISO 10628-2 registration number is X8090. Always check the legend sheets at the front of the P&ID set.
What is the basket strainer called in German?
Korbfilter. 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