Home Glossary

Glossary

Our industry is full of acronyms and slang / nicknames for things…  This is the page where we are supposed to keep you straight on all of those.  We are adding more all the time, slowly but surely!

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3

3D Model

3 dimensional CADD drawing with defined geometry, used to create detail dimension drawings or simply to illustrate an example.

3D Modeling

The process of generating 3D models (and usually drawings from them)

A

AARH

arithmetic average roughness height

ASL

Approved Supplier List – A list of approved suppliers/vendors created by procurement using a variety of criteria. These lists associate items and services with companies who supply them. Some of the criteria used to create these lists include, but are not limited to, technology, functionality, financial stability and past performance.

B

BB

bolted bonnet

BBE

bevel both ends (pipe nipple)

BHN

brinell hardness number

Bld.

blind (flange)

BOE

bevel one end (pipe nipple)

BE x TE

beveled end by threaded end (pipe nipple)

BOI

bottom of insulation

BOP

bottom of pipe

B x T

beveled by threaded (pipe nipple)

BU

back-up (flange)

C

conc. red.

concentric reducer

CADD

Computer Aided Design & Drafting

COC

Certificate of Conformance or Certificate of Compliance – A document that certifies that the supplied goods or services meet the required specifications as outlined by the client and/or project.

D

E

ecc. red.

eccentric reducer

ell

elbow

EOL

elbolet

EOP

end of pipe

F

Field Assist Drawings (FAD)

Field Assist Drawings are part of Delta's Total Support Solution (TSS). We add images of all field supports on original ISOs with each shipment. Our FADs help Material Control issue the right material and help craftsmen see where supports are to be installed in the field. We take it one step further and identify all "Tack-Only" supports for safety in handling and to ensure that final field welds are not missed.

F to F

face to face

F/F

face of flange

F&D

faced & drilled

FF

flat face (flange)

flg.

flange

FOB

flat on bottom (eccentric reducer)

FOT

flat on top (eccentric reducer)

FHF

full hard surface

G

H

HF

hard faced

HFC

hard faced seats

I

J

K

L

LEB

large end beveled (swage)

LEP

large end plain (swage)

LET

large end threaded (swage)

LOL

latrolet

M

MTR

Material Test Report or Mill Test Report – A Quality Assurance document that certifies that the chemical analysis and physical properties of the material are in conformance with appropriate ASTM standards. MTRs include the name of the manufacturer, heat number, grade of material, dimensional information, chemical composition analysis results, country of origin, etc.

N

NPS

nominal pipe size

NPT

national pipe taper

NRS

non-rising stem (valve)

O

OS&Y

outside screw & yoke (valve)

P

PBE

plain both ends (pipe nipple)

PE

plain end (pipe nipple)

POE

plain one end (pipe nipple)

Q

R

RCP

reinforced concrete pipe

RF

raised face

RJ

ring joint (flange)

RS

rising stem (valve)

RMS

root mean square (roughness height)

RBB

round bolted bonnet (valve)

S

SO

slip-on (flange)

SEB

small end beveled (swage)

SEP

small end plain (swage)

SET

small end threaded (swage)

SW

socketweld (flange or fitting)

Std. Wt.

standard weight (pipe schedule)

T

Total Support Solution (TSS)

Delta's suite of services that begins with ISO Take-off , identification of all needed supports, CAD drawings, material take-off, standard pricing, all needed supports, drawings, special packaging, prioritization, pre-buy-tracking, the works! We make supports worry-free!

TBE

thread both ends (pipe nipple)

TOE

thread one end (pipe nipple)

TOL

threadolet

U

V

W

WOG

water, oil & gas

WN

weldneck (flange)

WOL

weldolet

X

XH

extra heavy (pipe schedule)

XXH

double extra heavy (pipe schedule)

Y

Z