Data Sheets- Dimensions Flashcards
Design - Mill tolerance for rolled and welded Pipe
(+/-) 0.01”
NDE- MAximum length of Crack, or Incomplete fusion allowed on a new weld
0”
Flanges- Typical Flange Face Finish
125 - 250 (Micro in)
Flanges - When mating flanges, the maximum amount of unparallel allowed
(1/16) (in/ft)
Flanges - Max offset for bolt holes for mating flanges
1/8 in
Welding - Maximum allowed size of open discontinuity in a bend test
1/8 in
Welder- Thickness to qualify welder with UT
> = (1/4) in
NDE- Min distance beyond the area to be examined to clean a part when performing an MT examination
1 in
NDE- Min distance beyond the area to be examined to clean a part when performing a PT examination
1 in
Repairs - Min radius of insert patch
1 in
Repairs - Min radius of fillet- weld patch
1 in
NDE- Suggested diameter of CML exam point
2 in
Preheat Zone - Distance from start of the weld
Greater of : ( 3in or 1.5 T )
PWHT Zone - Min width of band
3T
NDE- Min length of Spot RT
6in
Weld Qualify- Min weld length when qualifying a welder with RT/UT using a coupon or 1st production weld
6in
Weld Qualify- Min weld length when qualifying a welding operator with RT/UT of a test coupon
6in
Corrosion- Soil to Air Area - Distance in air from interface
6in
Corrosion - Distance to dig when inspecting for Soil-To-Air corrosion
6 - 12 in
NDE- Distance of eye-to-part to count as a Visual Exam
6 - 24in
Corrosion- Soil-to-Air area- distance in soil from interface
12in
NDE- Min upstream limit of intensive examination of injection point circuit
12in
PWHT- Min overlap for PWHT when using multiple heats
12in or 1Ft
Weld Qualify- Min weld length when qualifying a welding operator with RT/UT of first production weld
3in
Underground- Min length of buried pipe to expose when excavating for inspection
6-8in
Repairs- Max size of fillet weld patch on pipe
(1/2) Diameter of pipe
Circuits- Min upstream limit of injection point circuit
Greater of ( 12in or (3 *Pipe Diameter))
NDE- Min downstream limit of intensive examination of injection point circuit
10 Diameters
Circuits - Min downstream limit of injection point circuit
Lesser of :
- 1st Direction Change +25 ft past injection point
- 2nd change in direction past injection point
Linear Indication. Length?
Length is >= 3 times the width