Request a Quote

Home  ›  Technical guides  › 

Filtration basics

Technical guides

Filtration basics guides

The core concepts to know before choosing a filter: what a micron rating tells you, how nominal and absolute differ, and how to read efficiency. A good starting point for reading a technical specification correctly.

Guides on this topic

Guides are reviewed by our engineering team.

Nominal and absolute filtration compared
Guide
Cartridge filter|Filtration basics

Nominal vs absolute micron rating: which should you ask for?

A nominal micron rating means the filter retains most particles of that size; for felt bags this is typically 80–95%. An absolute micron rating means almost all particles larger than that size are retained, which requires a membrane with uniform pores.

30 October 2026
4 min read
Read the guide →

Can’t find the answer to your question?

Share your fluid, flow rate and current filter, and our engineering team will give you a tailored answer. We turn frequently asked questions into new guides.

Ask our team

Accounting

Billing Details

Copy our registered company name, tax and e-invoice details with one click using the button on each row.

Invoice name (registered company name)

PROSES TİCARET, İMALAT, MÜHENDİSLİK ENDÜSTRİYEL MADDE VE MALZEME İMALATI İNŞAAT VE SANAYİ LİMİTED ŞİRKETİ
Copy

Billing address

Musa Gündüz Cad. No:14 Taşköprü – Çiftlikköy – YALOVA, TÜRKİYE
Copy

E-invoice / e-archive email address

[email protected]
Copy

Tax office

Yalova Tax Office (Yalova V.D.)
Copy

Tax ID number

7330379514
Copy

MERSIS number

0733037951400013
Copy

Please send BA/BS forms, current account reconciliations and any other emails for our Finance and Administrative Affairs Department to [email protected].

Invoice name (registered company name): PROSES TİCARET, İMALAT, MÜHENDİSLİK ENDÜSTRİYEL MADDE VE MALZEME İMALATI İNŞAAT VE SANAYİ LİMİTED ŞİRKETİ Billing address: Musa Gündüz Cad. No:14 Taşköprü – Çiftlikköy – YALOVA, TÜRKİYE E-invoice / e-archive email address: [email protected] Tax office: Yalova Tax Office (Yalova V.D.) Tax ID number: 7330379514 MERSIS number: 0733037951400013
Copy all