The Ultimate Glossary of Sanitary Fitting Nomenclature
GENERAL FITTING NOMENCLATURE
- Initial Letter B: BioProcessing Equip STD
- Number Type: Ell, Tee, Adapter, etc.
- End Type: W=weld, M=ferrule, mp
- Size: in inches or 100s of inch (1/2” = 50)
- Material: 304, 316, AL6XN
Fitting Number Designation
Adapters
- Clamp/End Number 17
- M NPT/W Number 19
- F NPT/TC Number 22
- M NPT/TC Number 21
- Thermowell Number 23
Reducers
- Concentric: Number 31
- Ecentric: Number 32
- Flanges: Number 38
Elbows: Number 2
- C is a 90 degree bend
- K is a 45 degree bend
Tees: Number 7
Crosses: Number 9
Clamps: Number 13
Ferrules:
- Male: Number 14
- Female: Number 15
End Caps: Number 16
End Type Designation
B After number=Bevel Seat
W Weld
M Ferrule
MP All Ends Ferrule
R Reducing (Tee, Ferrule, Lateral)
V Schedule 5
X Schedule 10
NPT National Pipe Thread
Tee: Left, Right, Top (i.e. WMM)
Cross: Left, Right, Top, Bottom (i.e. MMWT)
Lateral: Left, Right, Lateral (i.e. WWM)
Y: Bottom, Branch, Branch (i.e. MTP)
Ferrule Designations
Clamp Systems
M/S/Clamp: Tri-Clamp
I/Z/EYE: I Line (Flat Loose Gasket) Wide Clamp
HI: Thin I Line (Uses I Line Gasket) (Tri-Clamp Clamp)
Q: Q Line (Tri-Clamp Clone Thicker Ferrules)
Threaded Systems
B/BS: Bevel Seat (Gasket Loose)
JP: John Perry (Gasket Fits Over Male End)
APC/APV/K: APV Fitting (Gasket Fits Into Threaded Nut)
DC: Similar to APC (Gasket Lower Profile)
Download other fitting resources: Fitting Part Number Cross Reference and Alfa Laval Fittings Poster