HDPE Pipe karachi | HDPE Pipe Islamabad

High Density Polyethylene Pipes and Fittings

Pipes made from polyethylene is a cost effective solution for a broad range of piping problems in municipal, industrial, marine, mining, landfill, duct and agricultural applications. It has been tested and proven effective for above ground, surface, buried, slip lined, floating, and sub-surface marine applications. High-density polyethylene pipe (HDPE) can carry potable water, wastewater, slurries, chemicals, hazardous wastes, and compressed gases. In fact, polyethylene pipe has a long and distinguished history of service to the gas, oil, mining and other industries. It has the lowest repair frequency per mile of pipe per year compared with all other pressure pipe materials used for urban gas distribution. Polyethylene is strong, extremely tough and very durable. Whether you’re looking for long service, trouble-free installation, flexibility, resistance to chemicals or a myriad of other features, high-density polyethylene pipe will meet all your requirements.

Advantages of HDPE Pipes

Durability
Leak free
Creep
Installation advantages
Light weight and flexible
Low pressure loss
Excellent flow characteristics
Stress relaxation
High impact resistance
Not effected by sea water
Visco-Elasticity
It is not possible for plant and tree root to penetrate inside the pipes.

Durability
Leak free
Creep
Installation advantages
Light weight and flexible
Low pressure loss
Excellent flow characteristics
Stress relaxation
High impact resistance
Not effected by sea water
Visco-Elasticity
It is not possible for plant and tree root to penetrate inside the pipes.

Applications of HDPE Pipes

Potable water pipe lines
Gas lines
Pressure irrigation system
Hydroelectric power plant
Treatment plant pipe line
Water treatment installation
Swimming pools pipe line
Chilled water pipe line

Compressed air lines
Solid material conveying lines
Chemical substance pipe lines
Sewage pipe lines
Solid waste methane gas discharge line
Sea discharge applications
Fish farm applications
Geothermal jacketing heating pipes

Chemical Resistance of HDPE Pipes

Acetone
Formaldehyde 10-40%
Gas Oil
Caproic Acid
Iodine
Isobutanol
Isopropanol
Mineral Oil
Motor Oil
Natural Gas
Gasoline
Phenol
Transformer Oil
Vaseline

Lead Salts
Oxalic Acid (All Conc.)
Potassium Chloride
Sulfurous Acid
Hydrochloric Acid (All Conc.)
Formaldehyde (40%)
Acetatic Acid
Ammonia (Aqueous)
Calcium Hydroxide
Diethylene Glycol
Ethylene Glycol
Ethanol 100%
Glycerin
Glycol

Hydrogen Peroxide 30%
Mercury
Methanol
Potassium Hydroxide 30%
Sodium Hydroxide
Aluminum Hydroxide
Ammonium Phosphate
Butane
Sea Water
Urea
Heptane
Diethyl Carbonate

Jointing System

The jointing techniques for HDPE pipes and fittings are following:

1- Butt Fusion

2- Electro Fusion

3- Socket Fusion

4- Flange Connection

ISO-4427 Water (Dimensions in Millimetres)


PE-100	Tolerance (mm)	PN-25		PN-20		PN-16		PN-12.5		PN-10		PN-8		PN-6
		SDR7.4		SDR9		SDR11		SDR13.6		SDR17		SDR21		SDR26
Outer Dia (mm)		emin	emax	emin	emax	emin	emax	emin	emax	emin	emax	emin	emax	emin	emax
Wall Thickness
25	0.3	3.5	4.0	3.0	3.4	2.3	2.7	2.0	2.3
32	0.3	4.4	5.0	3.6	4.1	3.0	3.4	2.4	2.8	2.0	2.3
40	0.4	5.5	6.2	4.5	5.1	3.7	4.2	3.0	3.5	2.4	2.8	2.0	2.3
50	0.4	6.9	7.7	5.6	6.3	4.6	5.2	3.7	4.2	3.0	3.4	2.4	2.8	2.0	2.3
63	0.4	8.6	9.6	7.1	8.0	5.8	6.5	4.7	5.3	3.8	4.3	3.0	3.4	2.5	2.9
75	0.5	10.3	11.5	8.4	9.4	6.8	7.6	5.6	6.3	4.5	5.1	3.6	4.1	2.9	3.3
90	0.6	12.3	13.7	10.1	11.3	8.2	9.2	6.7	7.5	5.4	6.1	4.3	4.9	3.5	4.0
110	0.7	15.1	16.8	12.3	13.7	10.0	11.1	8.1	9.1	6.6	7.4	5.3	6.0	4.2	4.8
125	0.8	17.1	19.0	14.0	15.6	11.4	12.7	9.2	10.3	7.4	8.3	6.0	6.7	4.8	5.4
140	0.9	19.2	21.3	15.7	17.4	12.7	14.1	10.3	11.5	8.3	9.3	6.7	7.5	5.4	6.1
160	1.0	21.9	24.2	17.9	19.8	14.6	16.2	11.8	13.1	9.5	10.6	7.7	8.6	6.2	7.0
180	1.1	24.6	27.2	20.1	22.3	16.4	18.2	13.3	14.8	10.7	11.9	8.6	9.6	6.9	7.7
200	1.2	27.4	30.3	22.4	24.8	18.2	20.7	14.7	16.3	11.9	13.2	9.6	10.7	7.7	8.6
225	1.4	30.8	34.0	25.2	27.9	20.5	22.7	16.6	18.4	13.4	14.9	10.8	12.0	8.6	9.6
250	1.5	34.2	37.8	27.9	30.8	22.7	25.1	18.4	20.4	14.8	16.4	11.9	13.2	9.6	10.7
280	1.7	38.3	42.3	31.3	34.6	25.4	28.1	20.6	22.8	16.6	18.4	13.4	14.9	10.7	11.9
315	1.9	43.1	47.6	35.2	38.9	28.6	31.6	23.2	25.7	18.7	20.7	15.0	16.6	12.1	13.5
355	2.2	48.5	53.5	39.7	43.8	32.2	35.6	26.1	28.9	21.1	23.4	16.9	18.7	13.6	15.1
400	2.4	54.7	60.3	44.7	49.3	36.3	40.1	29.4	32.5	23.7	26.2	19.1	21.1	15.3	17.0
450	2.7	61.5	67.8	50.3	55.5	40.9	45.1	33.1	36.6	26.7	29.5	21.5	23.8	17.2	19.1

ISO 4437 Gas (Dimensions in Millimetres)


Outer Dia (mm)	Minimum Wall Thickness(mm)

	SDR9	SDR11	SDR13.6	SDR17	SDR 17.6	SDR21	SDR26
25	3.0	2.3	2.0
32	3.6	3.0	2.4	2.0	2.0
40	4.5	3.7	3.0	2.4	2.3	2.0
50	5.6	4.6	3.7	3.0	2.9	2.4	2.0
63	7.1	5.8	4.7	3.8	3.6	3.0	2.5
75	8.4	6.8	5.6	4.5	4.3	3.6	2.9
90	10.1	8.2	6.7	5.4	5.2	4.3	3.5
110	12.3	10.0	8.1	6.6	6.3	5.3	4.2
125	14.0	11.4	9.2	7.4	7.1	6.0	4.8
140	15.7	12.7	10.3	8.3	8.0	6.7	5.4
160	17.9	14.6	11.8	9.5	9.1	7.7	6.2
180	20.1	16.4	13.3	10.7	10.3	8.6	6.9
200	22.4	18.2	14.7	11.9	11.4	9.6	7.7
225	25.2	20.5	16.6	13.4	12.8	10.8	8.6
250	27.9	22.7	18.4	14.8	14.2	11.9	9.6
280	31.3	25.4	20.6	16.6	15.9	13.4	10.7
315	35.2	28.6	23.2	18.7	17.9	15.0	12.1
355	39.7	32.2	26.1	21.1	20.2	16.9	13.6
400	44.7	36.4	29.4	23.7	22.8	19.1	15.3
450	50.3	40.9	33.1	26.7	25.6	21.5	17.2