Pipe Abbreviations and Acronyms

1. WWU
   Wales and West Utilities
2. XH
   Extra-Heavy
3. XH
   Extra Heavy
4. CHR
   Chilled Water Return
5. CHS
   Chilled Water Supply
6. O&D
   Outer Diameter
7. X HVY
   Extra Heavy
8. I-D
   Internal Diameter
9. CHWR
   Chilled Water Return
10. CHWS
    Chilled Water Supply

Last updated: January 4, 2020 — Total entries: 330