The couplings for joining pipes of the same diameter are threaded (ductile iron/steel) and welded. DN 15-100, thread G½"–G4". Quick installation without welding.
| Item | The coupling is straight |
|---|---|
| Connection | Threaded (BP) / welded |
| Nominal bore DN | 15–100 mm |
| Carving | G½″ – G4″ |
| Material | Ductile iron, steel, stainless steel |
| Coverage | Black / Galvanized |
| Standard | ГОСТ 8943-8968 (threaded connectors ductile iron parts) |
| Pressure | up to PN 16 (threaded) |
| Medium | Water, heating, gas, air |
The letters on the diagram correspond to the columns of the dimension table below.
| DN | Thread G (pipes) | Diameter of the pipe, mm |
|---|---|---|
| 15 | G½″ | 21,3 |
| 20 | G¾″ | 26,9 |
| 25 | G1″ | 33,7 |
| 32 | G1¼″ | 42,4 |
| 40 | G1½″ | 48,3 |
| 50 | G2″ | 60,3 |
| 65 | G2½″ | 76,1 |
| 80 | G3″ | 88,9 |
| 100 | G4″ | 114,3 |
Compliance with Dn and cylindrical pipe thread G. Couplings are available in series ГОСТ 8943-8968; face length L — according to standard size. Thread BP (internal) / HP (external) — according to the design.
Internal thread BP at both ends — connects pipes of the same diameter.
Steel coupling for the welded joint.
Ductile iron (black/galvanized), steel, stainless steel.
The connecting pipe connects pipes of the same diameter, the transitional pipe connects pipes of different diameters (see "Transitional coupling").
Cylindrical tube G according to DN (Ду15=G½" ... Ду100=G4"), internal (BP).
Ductile iron, steel, stainless steel; black or galvanized coating.
Threaded ductile iron — up to Ру16.
Yes — steel couplings for the welded joint.
Send the parameters (DN, PN, material, GOST) or a specification — we will prepare an offer with lead times.
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