Plastic Pipe Materials, Joining, Installation & Other - - PowerPoint PPT Presentation

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Plastic Pipe Materials, Joining, Installation & Other - - PowerPoint PPT Presentation

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Plastic Pipe Materials, Joining, Installation & Other Considerations PHMSA TQ 1 Thermoplastic Pipe Materials Acrylonitrile-Butadiene-Styrene (ABS) Cellulose-Acetate-Butyrate (CAB) Poly Butylene (PB) Polyethylene (PE)

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SLIDE 1

Plastic Pipe

Materials, Joining, Installation & Other Considerations

1 PHMSA TQ

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SLIDE 2

Thermoplastic Pipe Materials

Acrylonitrile-Butadiene-Styrene (ABS) Cellulose-Acetate-Butyrate (CAB) Poly Butylene (PB) Polyethylene (PE) Polyvinylchloride (PVC) Polyamide (PA)

2 PHMSA TQ

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SLIDE 3

Thermosetting (Fiberglass)

3 PHMSA TQ

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SLIDE 4

Spool-able Composites

PHMSA TQ 4

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SLIDE 5

Polyethylene

Medium Density 2406(Past) /2708 High Density 3408(Past) /4710 Med-Low Density Uponor Aldyl

5 PHMSA TQ

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SLIDE 6

Polyamide

Nylon PA-11(Current) PA-12 (Future)

6 PHMSA TQ

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SLIDE 7

Plastic Materials Must Meet

ASTM D 2513 (Thermoplastic)

2009 Edition – Polyethylene pipe and marking 1999 Edition – Thermoplastics 1987 Edition – Marking 2012ae1 for PE (Plastic Pipe NPRM)

ASTM D 2517 (Thermoset)

2000 Edition

7 PHMSA TQ

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SLIDE 8

Long Term Hydrostatic Strength

Material Designation HDB @ 23°C (73°F)

ABS 1210 2,000 CAB MH08 1,600 PE 2110 2,000 PE 2406 1,250 PE 3408 1,600 Polyamide 2,500 PVC 1120/1220 4,000 Thermosetting 11,000

8 PHMSA TQ

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SLIDE 9

First Two Digits Grade of Material

2406 CE

Marking Designations

Second Two Digits Half of HDB @ 73º F Temperature HDB @ Evaluation Temp

From ATSM D 2513 1987 Edition

9 PHMSA TQ

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SLIDE 10

Variation in Soil Temperatures Three Feet Below the Surface, ºF

Location January April July Massachusetts 36 42 60 Michigan 38 43

60

Washington 37 44

61

Illinois 41 46

66

Nebraska 38 43

68

Kentucky 40 50

70

Colorado (Plains) 35 44

65

Alabama 61 61

79

Mississippi 57 70 80 Texas (Panhandle) 42 55 75 Texas (South) 62 66 80 Oklahoma 48 60 78

10 PHMSA TQ

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SLIDE 11

§192.121 Design of Plastic Pipe

P=(2s / SDR-1 ) x DF

  • P = Design Pressure (psi)
  • S = Long-term Hydrostatic Strength (HDB)
  • D = Specified Outside Diameter
  • t = Specified Minimum Wall Thickness
  • SDR = Outside Diameter / Wall Thickness
  • DF = .32 for PE
  • DF = .40 for PA-11

11 PHMSA TQ

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SLIDE 12

§192.123 Design Limitations

a) Design Pressure 100 psig for:

  • Distribution systems
  • Class 3 and 4 locations
  • Except as provided in (e) and(f)

12 PHMSA TQ

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SLIDE 13

§192.123 Design Limitations

e) Design Pressure for pipe produced after 7/14/2004 may exceed 100 psig if:

  • Design pressure does not exceed 125

psig

  • PE 2406 or 3408 per ASTM D-2513

(PE 2708 or 4710 post March 6, 2015)

  • Nominal pipe size is 12 inches or less
  • Design pressure in accordance with

§192.121

13 PHMSA TQ

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SLIDE 14

§192.123 Design Limitations

e) Design pressure up to 200 psig:

  • Pipe produced after 1/23/09
  • PA-11
  • Nominal pipe size is 4 inches or less
  • SDR is 11 or greater (thicker wall)

14 PHMSA TQ

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SLIDE 15

Subpart F

Applies to all joints except steel welding

15 PHMSA TQ

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SLIDE 16

§192.273 General Joining of Materials Other Than By Welding

a) Each joint must be made in accordance with written procedures b) Procedures must be proven by test c) Each joint must be inspected

16 PHMSA TQ

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SLIDE 17

§192.281 General Requirements For Plastic Pipe

a) Plastic pipe may NOT be joined by THREADED or MITER joints b) Solvent cements (PVC) - ASTM D 2513 c) Heat fusion joints (PE)

  • Must be joined by a

device which holds the ends aligned and heats uniformly

17 PHMSA TQ

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SLIDE 18

Can’t Do These

18 PHMSA TQ

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SLIDE 19

General Requirements For Plastic Pipe §192.281 (cont.)

d) Adhesive joints (Fiberglass) ASTM D 2517 e) Mechanical joints (All Plastic)

  • 1. Gasket compatible

with plastic

  • 2. Rigid internal

tubular stiffener

19 PHMSA TQ

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SLIDE 20

Mechanical Fitting Types

  • 1. Those that provide pressure seal and restraint

equal to forces that cause pipe yield.

  • 2. Those that provide pressure seal only.
  • 3. Those that provide pressure seal and restraint

equal to forces generated by temperature changes

By Category Classification

20 PHMSA TQ

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SLIDE 21

Mechanical Joints

Necessary measures must be employed to prevent pullout

21 PHMSA TQ

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SLIDE 22

§192.283 Qualifying Joining Procedures

Written joining procedures must be qualified by testing

– Heat fusion, solvent cement, and adhesive joints

  • Burst tests per ASTM D2513 or
  • ASTM D 2517(Sustained

Pressure or Quick Burst)

22 PHMSA TQ

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SLIDE 23

Qualifying Joining Procedures

§192.283(a)Written Joining Procedures Must Be Qualified By Testing

– Heat fusion, solvent cement, and adhesive joints

  • Destructive test for lateral connections
  • Tensile test (ASTM D 638) for non-lateral

connections

  • Electrofusion (ASTM F 1055)

23 PHMSA TQ

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SLIDE 24

Qualifying Joining Procedures (cont.)

Mechanical Joints

– Subject five specimens to tensile test (ASTM D 638)

  • Specimen must fail outside of the joint

Written procedures must be available to persons making and inspecting joints

24 PHMSA TQ

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SLIDE 25

Qualifying Persons To Make Joints

§192.285(a)

A person must be qualified under a joining procedure – Training or Experience; and – Make a specimen joint

25 PHMSA TQ

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SLIDE 26

Qualifying Persons To Make Joints (cont.)

§192.285(b) Specimen Joint Check

– Visually examined (Compared to photos of acceptable joints); and – Subjected to testing per §192.283(a) (burst or sustained pressure); or

26 PHMSA TQ

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SLIDE 27

Qualifying Persons To Make Joints (cont.)

– Ultrasonic test; or – Cut straps (Visual examination and deform)

27 PHMSA TQ

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SLIDE 28

Qualifying Persons to Make Joints (cont.)

Retesting Pre Oct. 1, 2015 required if:

  • Person doesn't join

in twelve months; or

  • 3 or 3% Joints found

unacceptable (under test as required by 192.513) Records MUST be kept.

28 PHMSA TQ

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SLIDE 29

Qualifying Persons to Make Joints (cont.)

Retesting Post

  • Oct. 1, 2015

required if:

  • Any Joints are

Found unacceptable (Under test as required by §192.513)

  • Joiners must be

requalified each Calendar Year.

29 PHMSA TQ

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SLIDE 30

§192.287 Inspection of Joints

No person may inspect joints unless that person has been qualified by training

  • r experience.

30 PHMSA TQ

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SLIDE 31

PHMSA TQ 31

Additional Concerns

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SLIDE 32

192.193 Installation of Valves

Plastic valves must be installed to prevent torsional, shearing, and secondary stresses

32 PHMSA TQ

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SLIDE 33

192.311 Repair of Plastic Pipe

Each imperfection or damage that would impair the serviceability of plastic pipe Must be repaired or removed

PHMSA TQ 33

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SLIDE 34

Quick, Easy Check

34 PHMSA TQ

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SLIDE 35

§192.321 Installation Of Plastic Pipe

a) Plastic pipe MUST be installed below ground (exceptions in g & h) b) Plastic installed in vaults and other below ground enclosures must be encased in gas-tight metal pipe and fittings protected from corrosion. c) Shear or tensile stresses must be minimized.

35 PHMSA TQ

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SLIDE 36

§192.321 Subpart “G”

36 PHMSA TQ

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SLIDE 37

§192.321 Installation Of Plastic Pipe (cont.)

(d) Minimum wall thickness .090" O.D. of .875 (7/8) may be .062" (e) Must be installed with tracer wire

  • r other means of locating.

(Cannot wrap tracer wire around pipe) (f) Leading ends must be sealed before insertion.

37 PHMSA TQ

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SLIDE 38

Installed With a Means of Locating

38 PHMSA TQ

Locatable Like This NOT Like This

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SLIDE 39

§192.321 Installation Of Plastic Pipe

(g) Uncased plastic pipe may be temporarily installed above ground level under the following conditions: (1) The operator must be able to demonstrate that the cumulative aboveground exposure of the pipe does not exceed the manufacturer's recommended maximum period of exposure or 2 years, whichever is less.

39 PHMSA TQ

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SLIDE 40

Storage of Plastic

Manufactured Pre March 6th 2015

  • 2 Years Maximum UV Exposure

Manufactured Post March 6th 2015

  • 3 Years MDPE
  • 10 Years HDPE

Temporary Installations are still Limited to 2 Years

PHMSA TQ 40

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SLIDE 41

§192.321 Installation Of Plastic Pipe

(h) Plastic pipe may be installed on bridges provided that it is:

1) Installed with protection from mechanical damage, such as installation in a metallic casing; 2) Protected from ultraviolet radiation; and 3) Not allowed to exceed the pipe temperature limits specified in §192.123.

41 PHMSA TQ

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SLIDE 42

§192.375 Service Lines: Plastic

a) Plastic above ground and outside of buildings must:

  • Be protected

against deterioration and external damage

  • Plastic CANNOT

support external loads

42 PHMSA TQ

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SLIDE 43

Storage of Plastic

43 PHMSA TQ

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SLIDE 44

§192.375 Service Lines: Plastic

b) Plastic Inside a Building Must Be Protected Against External Damage

44 PHMSA TQ

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SLIDE 45

Handling of Plastic

Bend Radius should be no less than 20x's pipe O.D.

45 PHMSA TQ

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SLIDE 46

Drisco 7000/8000

PHMSA TQ 46

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SLIDE 47

Drisco 7000/8000

ADB-12-03

Mar 6, 2012 Notice to Operators of Driscopipe 8000 High Density Polyethylene Pipe of the Potential for Material Degradation

PHMSA TQ 47

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SLIDE 48

Drisco 7000/8000

Known Issues

  • Under 60 PSIG
  • Desert

Environments

  • ½” to 2” Pipe
  • Manufactured at

Watsonville, CA Plant

PHMSA TQ 48

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SLIDE 49

Questions

Bryan Kichler Bryan.kichler@dot.gov

PHMSA TQ 49