As specified in ASTM F 1545 A, the minimum thickness mentioned is 3.05 from 1 to 4 inch, above 4-inch minimum thickness is 3.18 up to18-inch minimum thickness is 3.81mm.
However minimum wall thickness maybe increased to compensate for offers of temperature, oil saturation, chemical content siphon, angular presence rises etc.
Mechanical Properties: The mechanical properties of the pipes and fittings shall conform to the appropriate specifications listed in Table5.
| Lining Material | Pipe Specifications | Flange Specifications | Fitting Specifications |
|---|---|---|---|
|
PVDF, PTFE, FEP, ETFE, and PFA |
A53 / A53M |
A105 / A 105M |
A105 / A 105M |
|
|
A106 / A 106M |
|
|
|
|
A135 / A 135M |
A182 /A182M |
A182 /A182M |
|
|
A312 / A 312M |
A216 / A216M |
A216 / A216M |
|
|
A513 / A 513M |
A395 / A395M |
A234 / A234M |
|
|
A587 |
A536(60-40-18) |
A351 / A351M |
|
|
|
|
A395 / A395M |
|
|
|
|
A403 / A403M |
|
|
|
|
A536(60-40-18) |
|
PP and PVDC and HDPE |
A53 / A53M |
A105 / A 105M |
A48 / A48M |
|
|
A106 / A 106M |
|
A105 / A105M |
|
|
A135 / A 135M |
A182 /A182M |
A126 |
|
|
A312 / A 312M |
A216 / A216M |
|
|
|
A513 / A 513M |
A395 / A395M |
A182 / A182M |
|
|
A587 |
A536 |
A216 / A216M |
|
|
|
|
A234 / A234M |
|
|
|
|
A351 / A351M |
|
|
|
|
A395 / A395M |
|
|
|
|
A403 / A403M |
|
|
|
|
A536 |
The interior surfaces of all housings shall be clean and free of mold burrs, rust, scale, or other protrusions, which may adversely affect the integrity or performance of the lining.
Flanges and fittings used for plastic lined pipe shall conform dimensionally to the following industry ferrous flange and fitting dimensional standards:
| Metallurgy | Specification |
|---|---|
|
Steel |
ASME B16.5 |
|
Ductile Iron |
ASME B16.42 |
|
Cast Iron |
ASME B16.1 |
Tolerances for pipe, flanges, and fittings shall be in accordance with Table 8. Bolt holes in both flanges on a fixed flange spool shall straddle the same center line to facilitate alignment. Finished lined fabricated fittings shall conform to the nominal center – to – face dimensions as specified in ASME B16.1, B16.42, or B16.5 with applicable tolerances.
| Type | Sizes |
|---|---|
|
Pipe Length |
± 1/8 (±3.2) |
|
Fixed flange bolt hole alignment |
± 1/16 (±1.6) |
|
Flange perpendicularity (with pipe centreline) |
3/32 in./ft (7.8 mm/m) of diameter |
|
Flanges: |
|
|
All dimensions |
See ASME B 16.42 or ASME B 16.5 |
|
Fittings: |
|
|
All dimensions |
See ASME B 16.1, B 16.5 or B 16.42 |
