ISO 2531 Ductile iron pipe

Internal Protection

External Protection

Pipes & Fittings:

Cement mortar lining complying with ISO 4179

Pipes & Fittings:

metallic Zinc Coating+Bitmen complying with ISO8179

Norminal Diameter DN(mm)

Allowable Angles of Delfection at Installation Work

Norminal Diameter DN(mm)

Allowable Angles of Delfection at Installation Work

80

100

125

150

200

250

300

350

400

5°

5°

5°

5°

4°

4°

4°

3°

3°

450

500

600

700

800

900

1000

1100

1200

3°

3°

3°

2°

2°

2°

1°

1°

1°