Guides
Engineering guides for data center piping
Short, practical notes for mechanical engineers, piping designers and buyers writing a data center piping specification. Each guide answers one question and links to the flanges it concerns.
Cooling system basics
FWS vs TCS
The two water loops of a liquid-cooled data center and what each means for materials and flanges.
TCS flushing and cleaning
Hydro test, cleaning, flushing and filtration targets before a TCS loop goes live.
Choosing flanges
Stainless vs carbon steel
Choosing flange material loop by loop: corrosion, cleanliness, ratings and transitions.
AWWA vs ASME flanges
Sizes, classes, faces and drilling, and when each standard makes sense on large water mains.
Flat face vs raised face
Mating steel flanges to cast iron chillers, pumps and FRP cooling tower piping.
Stainless steel and corrosion
Pickling and passivation
ASTM A380 and A967 explained, and why the TCS loop needs treated stainless surfaces.
Dissimilar metal isolation
Galvanic corrosion at carbon steel to stainless joints, and how isolation kits stop it.