PE80 Gas Pipe

JDP supplies PE80 pipes in yellow for gas distribution, in standard SDR11 & SDR17.6 ratings. PE100 pipes are also available for higher pressure applications.

SDR11 PE80 Polyethylene Coils

Size (OD mm)	Wall Thickness (mm)	Nominal Bore (mm)	Approx Weight (kg/m)
20	2.4	15.2	0.12
25	2.5	20.1	0.17
32	3.1	25.8	0.28
50	4.8	40.4	0.67
63	6.1	50.9	1.05

Size (OD mm)	6m	50m	100m	150m
20	090320G6	090320G50	090320G100	090320G150
25	090325G6	090325G50	090325G100	090325G150
32	090332G6	090332G50	090332G100	090332G150
50	090350G6	090350G50	090350G100	090350G150
63	090363G6	090363G50	090363G100	090363G150

Size (OD mm)	Wall Thickness (mm)	Nominal Bore (mm)	Approx Weight (kg/m)
90	8.6	72.9	2.10
125	11.9	101.2	4.04
160	15.2	129.8	6.61
180	17.0	146.0	8.36
250	23.6	202.8	16.10
315	29.7	255.6	25.54
355	33.5	288.1	32.43

Size (OD, mm)	6m	12m	50m	100m
90	1003090G6	1003090G12	1003090GC50	1003090GC100
110	1003110G6	1003110G12	1003110GC50	1003110GC100
125	1003125G6	1003125G12	1003125GC50	1003125GC100
160	1003160G6	1003160G12	1003160GC50	1003160GC100
180	1003180G6	1003180G12	1003180GC50	1003180GC100
200	1003200G6	1003200G12
225	1003225G6	1003225G12
250	1003250G6	1003250G12
280	1003280G6	1003280G12
315	1003315G6	1003315G12
355	1003355G6	1003355G12

Size (OD mm)	Wall Thickness (mm)	Nominal Bore (mm)	Approx Weight (kg/m)
90	5.4	79.3	1.38
125	7.4	110.3	2.64
180	10.6	158.9	5.45
250	14.7	220.7	10.49
315	18.4	278.2	16.63
355	20.8	313.5	21.11
400	23.4	353.3	26.78
450	26.3	397.5	33.88
500	29.2	441.6	41.81
560	32.6	494.8	52.53

Size (OD, mm)	6m	12m	50m	100m
90	1003090G76	1003090G712	1003090G7C50	1003090G7C100
110	1003110G76	1003110G712	1003110G7C50	1003110G7C100
125	1003125G76	1003125G712	1003125G7C50	1003125G7C100
160	1003160G76	1003160G712	1003160G7C50	1003160G7C100
180	1003180G76	1003180G712	1003180G7C50	1003180G7C100
200	1003200G76	1003200G712
225	1003225G76	1003225G712
250	1003250G76	1003250G712
280	1003280G76	1003280G712
315	1003315G76	1003315G712
355	1003355G76	1003355G712
400	1003400G76	1003400G712
450	1003450G76	1003450G712
500	1003500G76	1003500G712
560	1003560G76	1003560G712

EN13244:2003

Plastic piping systems for general purpose water, drainage and sewerage - polyethylene.

PE pipes can be jointed by Electrofusion or Butt-fusion. This method allows pipe to be fused outside of the trench, reducing the trench width required and minimising excavation.

For Electrofusion and Butt-fusion jointing see jointing guides at the end of the Fabricated Fittings section.

Laying of Pipes

The pipes should be installed in the trench with the pipe markings uppermost. Polyethylene may in some instances be laid directly onto the trimmed trench bottom where the soil is uniform, fine grained and free from large stones and flints.

In other cases the trench should be excavated to a depth to allow for a minimum 100mm bed of gravel, crushed stone or coarse sand. A sand/gravel mix is also acceptable, provided the gravel is less than 20mm in size.

Joint clearance holes should be dug into the trench to ensure pipe and sockets are laid level.

Pipes can be laid either in a conventional open cut trench and jointed in the trench, or a narrow trench where the pipes are jointed above ground and subsequently lowered into the trench.

The current practice in the UK is to lay service pipes at 750mm cover and mains pipes at 900mm cover, measured from the pipe crown.

The width of an open cut trench should be the minimum of pipe O.D. plus 250mm to allow for the correct compaction of sidefill and room to work in the trench.

The location of cables and pipes from other utilities should be identified prior to excavation and supported / protected throughout. Any damage should be reported.

Trench walls 1.2m and deeper must be supported – guidance on excavation techniques can be found in:

• BS 6031 Code of practice for Earthworks (general trenchworks)
• Report No. 97 Trenching practice (more specific advice)
• Report UM 1049 : 1990 (review of current practices)

Trench reinstatement in highways is covered in the NRASWA "Specification for the Reinstatement of Openings in Highways", 1992. This code was introduced with the aim that all highway reinstatement is completed as soon as possible to a consistent prescribed performance criteria.

Polyethylene is a flexible material and can deform under load without damage. It is however, important that any deformation is minimised and that the placement of the correct sidefill and initial backfill materials is carried out correctly with adequate compaction. Further details on bed and fill materials are given in WIS 4-08-01.

A minimum 100mm cover should be placed above the crown of the pipe, with heavy compaction equipment not being used with less than 300mm cover. Backfilling can then proceed in 300mm layers.

Trench backfilling should commence as soon as possible after pipe laying to give the pipe protection from damage from objects possibly falling into the trench. To protect the pipe from potential future interference damage it is good practice to install a marker tape 300mm above pipe crown.

Marker tapes can also include a tracer wire to allow future identification of the pipeline. See accessories section for marker tapes.

Handling and Storage

Take care when handling and storing pipes not to scrape and scuff the pipe. Scores and scrapes at less than 10% of the wall thickness will not affect the service performance.

Black, Black/Blue stripe and Black/Brown stripe polyethylene is UV stabilised providing it with excellent protection against UV radiation.

Blue and yellow polyethylene contains enough UV stabilisation to resist degradation in storage only. The maximum recommended storage outside, in the UK, is 12 months. Products stored for longer should be covered or stored inside.

Always

• Store pipes on level, firm ground
• Keep pipe away from sharp objects and stones
• Keep protective packaging intact until required for use

Never

• Drag or roll pipes
• Throw or drop pipe
• Use metal slings and hooks around the pipe
• Store pipes close to petrochemicals or other aggressive materials