Privacy
Privacy
The short version: the calculators run in your browser, and the numbers you type never leave it.
Calculator inputs
Every calculation on this site is done client-side in JavaScript. EDR figures, pipe lengths, loads, and temperatures are not transmitted to a server, not stored, and not logged. Closing the tab discards them.
Accounts, cookies, and tracking
There are no accounts and no sign-in. The site sets no tracking cookies and embeds no third-party advertising or analytics scripts.
The site is served by a hosting provider, which keeps standard server request logs — IP address, timestamp, requested URL, user agent — for operations and abuse prevention, under its own retention policy. We do not use those logs to build a profile of you.
External links
Source citations link out to manufacturer and industry documents. Those sites have their own privacy practices, which we do not control.
Changes
If this policy changes, the updated version will be posted on this page.