No popups, no spam.
Folks helping folks with
respect.  You'll like it. -- The Home Page of the Finishing Industry
  HomeFAQsBooksHelpWanted Mar. '16AdvertiseContactForum Letter 28290

The Hotline: Serious Education ... plus the most fun you can have in metal finishing. Ted Mooney, Webmaster

DI Water compatibility


Is there a list of materials that are recommended for use when designing a system that will be recirculating DI water.

Gregory Kremer
Paint Temperature Control - Romeo, Michigan, USA


A lot of that depends on what the purity of your "DI" is. For ultra pure, teflon is the only practical material. As you get to a lower purity, other plastics are frequently used. PVC is used by many at the 1 meg ohm purity. Thicker plastics that can be threaded (and not break regularly) are preferred by many to the use of PVC glued joints. The volatiles in the glue leach out for a long period. Plastics that are weldable is another approach. For low purity, Stainless steel is acceptable. Copper and galvanized are a no-no.

James Watts
- Navarre, Florida

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It is not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & DevicesUsed & Surplus

©1995-2016     -    Privacy    -    Search
How Google uses data when you visit this site.