W-Liner

After trenchless rehabilitation with the W-Liner, pressure pipes can once again transport drinking water and other types of water safely and without loss.

For application in the water sector, the inner and outer layers of the liner consist of polyethylene (PE).

The W-Liner satisfies the highest requirements for drinking water and is certified in accordance with globally reputable standards such as KTW-BWGL, DVGW Technical Standard W 270, ANSI/NSF/CAN 61, BS 6920, AS/NZS 4020 and many more.

The Primus Line W-Liner is ideal for:

Drinking water
Fire water
Industrial water
Sea water
Process water
Residential wastewater
Industrial wastewater
Treated wastewater
Brine

Other media only after detailed examination and approval by our technical department.

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Additional information on the variants

¹ determined according to ISO 9080 for water at 20 °C
² liner labeling may differ due to different calculation basis

Variants

Type ND

Variant	Outer diameter	Wall thickness	Inner diameter	Burst pressure	Operating pressure¹⁺²	Weight
ND 150	134 mm	6.0 mm	122 mm	63 bar	25 bar	2.1 kg/m
ND 150 SD	150 mm	6.0 mm	138 mm	54 bar	20 bar	2.4 kg/m
ND 200	183 mm	6.0 mm	171 mm	47 bar	18 bar	2.9 kg/m
ND 203 SD	205 mm	6.0 mm	193 mm	42 bar	16 bar	3.3 kg/m
ND 250	237 mm	6.0 mm	225 mm	38 bar	15 bar	3.8 kg/m
ND 261 SD	261 mm	6.0 mm	249 mm	30 bar	12 bar	4.2 kg/m
ND 300	284 mm	6.0 mm	272 mm	30 bar	12 bar	4.6 kg/m
ND 350	312 mm	6.0 mm	300 mm	33 bar	13 bar	5.0 kg/m
ND 400	354 mm	6.0 mm	342 mm	30 bar	12 bar	5.8 kg/m

Type MD

Variant	Outer diameter	Wall thickness	Inner diameter	Burst pressure	Operating pressure¹⁺²	Weight
MD 150	134 mm	6.0 mm	122 mm	140 bar	56 bar	2.2 kg/m
MD 150 SD	150 mm	6.0 mm	138 mm	120 bar	48 bar	2.4 kg/m
MD 200	183 mm	6.0 mm	171 mm	100 bar	40 bar	3.0 kg/m
MD 203 SD	205 mm	6.0 mm	193 mm	84 bar	33 bar	3.4 kg/m
MD 250	237 mm	6.0 mm	225 mm	75 bar	30 bar	4.0 kg/m
MD 261 SD	261 mm	6.0 mm	249 mm	64 bar	25 bar	4.4 kg/m
MD 300	284 mm	6.0 mm	272 mm	64 bar	25 bar	4.8 kg/m
MD 350	312 mm	6.0 mm	300 mm	50 bar	20 bar	5.2 kg/m
MD 400	354 mm	6.0 mm	342 mm	46 bar	18 bar	6.0 kg/m
MD 450	408 mm	6.0 mm	396 mm	40 bar	16 bar	7.0 kg/m
MD 500	454 mm	6.0 mm	442 mm	40 bar	16 bar	7.7 kg/m

Type HD

Variant	Outer diameter	Wall thickness	Inner diameter	Burst pressure	Operating pressure¹⁺²	Weight
HD 150 SD	155 mm	8.0 mm	139 mm	206 bar	82 bar	3.3 kg/m
HD 200	187 mm	8.0 mm	171 mm	173 bar	69 bar	4.0 kg/m
HD 250	241 mm	8.0 mm	225 mm	128 bar	51 bar	5.3 kg/m
HD 300	288 mm	8.0 mm	272 mm	110 bar	44 bar	6.4 kg/m
HD 400	357 mm	8.0 mm	341 mm	82 bar	32 bar	8.1 kg/m