Questions & Answers
Low-alloy steels: 10G2, 17G1S, 09G2S.
Structural steels: 35, 10, 25, 15, 20.
Carbon steels: St45, St10, St35, St25, St20.
International standards:
ISO 14713 — Corrosion protection;
ISO 1461 — Hot-dip galvanizing;
ISO 7005-1 — Plugs and flanges;
ISO 5251 — Welded fittings;
ISO 3419 — Steel fittings.
GOST standards:
GOST 9.303-84 — General requirements;
GOST 9.302-88 — Coating control;
GOST 9.301-86 — Metallic coatings;
GOST 9.307-89 — Hot-dip galvanizing;
GOST 6357-81 — Cylindrical pipe threads;
GOST 8965-75 — Threaded plugs;
GOST 17378-2001 — Types and dimensions for pipeline components;
GOST 17380-2001 — Pipeline components;
GOST 17379-2001 — Steel plugs.
European standards:
EN ISO 14713 — Zinc protection against corrosion;
EN 10240 — Coatings of fittings and pipes;
EN ISO 1461 — Hot-dip galvanizing;
EN 1092-1 — Flange plugs;
EN 10253-4 — Alloy steels.
For threaded plugs:
| Du (DN) | Outer diameter, mm | Weight, kg |
| 15 | 21.3 | 0.05 |
| 20 | 26.8 | 0.08 |
| 25 | 33.5 | 0.12 |
| 32 | 42.3 | 0.2 |
| 40 | 48.3 | 0.28 |
| 50 | 60.3 | 0.45 |
| 65 | 76.1 | 0.75 |
| 80 | 88.9 | 1.05 |
| 100 | 114.3 | 1.8 |
| 125 | 139.7 | 2.7 |
| 150 | 168.3 | 4.0 |
| 200 | 219.1 | 7.8 |
For flat welded plugs:
| Pipe diameter, mm | Wall thickness, mm | Weight, kg |
| 25 | 2.8 | 0.1 |
| 32 | 3.2 | 0.18 |
| 40 | 3.5 | 0.28 |
| 50 | 3.5 | 0.42 |
| 65 | 3.5 | 0.65 |
| 80 | 4.0 | 0.95 |
| 100 | 4.0 | 1.55 |
| 125 | 4.5 | 2.4 |
| 150 | 4.5 | 3,6 |
| 200 | 6.0 | 7,2 |