PVC-U pipes for low-pressure conveyance in irrigation-Metric

OD mm

Wall thickness e mm

0.2MPa

0.25MPa

0.32MPa

0.4MPa

75

—

—

1.6

1.9

90

—

—

1.8

2.2

110

—

1.8

2.2

2.7

125

—

2.0

2.5

3.1

140

2.0

2.2

2.8

3.5

160

2.0

2.5

3.2

4.0

180

2.3

2.8

3.6

4.4

200

2.5

3.2

3.9

4.9

225

2.8

3.5

4.4

5.5

250

3.1

3.9

4.9

6.2

280

3.5

4.4

5.5

6.9

315

4.0

4.9

6.2

7.7

Item

Requirements

1

density kg/m³

1350 ~1550

2

Falling Weight Impact Test(0℃,TIR)

≤10%

3

Hydrostatic test

(20 ℃, 4 times nominal pressure, 1 hour)

No rupture

No leakage

4

Longitudinal Reversion Rate(%)

≤5%

5

Flat performance

No cracks, no rupture

6

Tensile Yield Strength(MPa)

≥40

7

Ring stiffness

0.2MPa

≥0.5 kN/m²

0.25MPa

≥1   kN/m²

0.32MPa

≥2   kN/m²

0.4MPa

≥4 kN/m²