Pipe Repair Clamps
Socket Repair Clamp for DI Pipe
For emergency repair of socket joints on ductile iron and grey cast iron pipes. Full range DN80 to DN1600.
Inquire NowSpecifications
How to read the model number： H100 = repair of the socket joint on a DN100 ductile iron pipe. Suffix "+" indicates the extended-length variant.
| Model | DN | NPS | OD (mm) OD (in) | Length (mm) Length (in) |
|---|---|---|---|---|
| H80 | DN80 | 3" | 98 mm 3.86" | 270 mm 10.6" |
| H80+ | DN80 | 3" | 98 mm 3.86" | 358 mm 14.1" |
| H100 | DN100 | 4" | 118 mm 4.65" | 274 mm 10.8" |
| H100+ | DN100 | 4" | 118 mm 4.65" | 374 mm 14.7" |
| H150 | DN150 | 6" | 170 mm 6.69" | 281 mm 11.1" |
| H150+ | DN150 | 6" | 170 mm 6.69" | 383 mm 15.1" |
| H200 | DN200 | 8" | 222 mm 8.74" | 285 mm 11.2" |
| H200+ | DN200 | 8" | 222 mm 8.74" | 390 mm 15.4" |
| H250 | DN250 | 10" | 274 mm 10.79" | 300 mm 11.8" |
| H250+ | DN250 | 10" | 274 mm 10.79" | 400 mm 15.7" |
| H300 | DN300 | 12" | 326 mm 12.83" | 308 mm 12.1" |
| H300+ | DN300 | 12" | 326 mm 12.83" | 405 mm 15.9" |
| H350 | DN350 | 14" | 378 mm 14.88" | 414 mm 16.3" |
| H400 | DN400 | 16" | 429 mm 16.89" | 362 mm 14.3" |
| H400+ | DN400 | 16" | 429 mm 16.89" | 446 mm 17.6" |
| H450 | DN450 | 18" | 480 mm 18.90" | 393 mm 15.5" |
| H500 | DN500 | 20" | 532 mm 20.94" | 366 mm 14.4" |
| H500+ | DN500 | 20" | 532 mm 20.94" | 465 mm 18.3" |
| H600 | DN600 | 24" | 635 mm 25.00" | 386 mm 15.2" |
| H600+ | DN600 | 24" | 635 mm 25.00" | 472 mm 18.6" |
| H700 | DN700 | 28" | 738 mm 29.06" | 421 mm 16.6" |
| H800 | DN800 | 32" | 842 mm 33.15" | 452 mm 17.8" |
| H900 | DN900 | 36" | 945 mm 37.20" | 475 mm 18.7" |
| H1000 | DN1000 | 40" | 1048 mm 41.26" | 504 mm 19.8" |
| H1200 | DN1200 | 48" | 1255 mm 49.41" | 567 mm 22.3" |
| H1400 | DN1400 | 56" | 1462 mm 57.56" | 615 mm 24.2" |
| H1600 | DN1600 | 64" | 1668 mm 65.67" | 830 mm 32.7" |
Frequently Asked Questions
What pipe types and sizes is the Socket Repair Clamp for DI Pipe compatible with?
The Socket Repair Clamp for DI Pipe fits DN80 to DN1600 pipelines and is engineered for ductile iron and grey cast iron. It seals longitudinal cracks, pinholes, circumferential fractures, and joint leaks without cutting out the damaged pipe section.
What is the working pressure rating?
Rated for 1.0 MPa (standard) / 1.6 MPa (upgraded). Standard clamp bodies are tested to at least PN16 (1.6 MPa); higher-pressure variants are available on request for gas-distribution and industrial service.
Can this clamp be installed on a live, pressurized pipeline?
Yes. The Socket Repair Clamp for DI Pipe is designed for installation on live pipelines under pressure, which means municipal water, gas, or process flow does not have to be interrupted. Our technical team provides pre-install checklists to ensure safe deployment.
What materials are used in the body and sealing gasket?
Construction — shell: Ductile iron QT450-10 · seal: EPDM. Corrosion-resistant stainless-steel banding (SUS304 / SUS316) with EPDM (potable water) or NBR (oil / hydrocarbon service) gaskets is available depending on the application.
What is the lead time and how is it shipped?
Standard lead time is 15 working days ex-factory, shipping FOB Shanghai. Sea, air, and combined transport are arranged through PipeKnot to over 40 countries. Volume orders and project tenders receive priority scheduling.
Is installation guidance and technical support included?
PipeKnot provides English-language installation drawings, torque specifications, and remote technical support. On-site commissioning support can be arranged for qualifying projects in partnership with Anhui Tongfa field engineers.
