Pipe Repair Clamps
Socket Repair Clamp for Concrete Pipe
For repair of socket joints on self-stressed and pre-stressed concrete pipes. DN100 to DN2000.
Inquire NowSpecifications
How to read the model number： Z100 = socket repair for DN100 self-stressed concrete pipe. Z800-1 = first-stage prestressed; Z800-3 = third-stage prestressed.
| Model | DN | NPS | OD (mm) OD (in) | Length (mm) Length (in) |
|---|---|---|---|---|
| Z100 | DN100 | 4" | 150 mm 5.91" | 378 mm 14.9" |
| Z150 | DN150 | 6" | 200 mm 7.87" | 387 mm 15.2" |
| Z200 | DN200 | 8" | 260 mm 10.24" | 430 mm 16.9" |
| Z250 | DN250 | 10" | 320 mm 12.60" | 452 mm 17.8" |
| Z300 | DN300 | 12" | 380 mm 14.96" | 508 mm 20.0" |
| Z300加长型 | DN300 | 12" | 380 mm 14.96" | 607 mm 23.9" |
| Z400 | DN400 | 16" | 490 mm 19.29" | 573 mm 22.6" |
| Z400-3 | DN400 | 16" | 506 mm 19.92" | 933 mm 36.7" |
| Z500 | DN500 | 20" | 610 mm 24.02" | 755 mm 29.7" |
| Z500-3 | DN500 | 20" | 610 mm 24.02" | 1000 mm 39.4" |
| Z600 | DN600 | 24" | 720 mm 28.35" | 800 mm 31.5" |
| Z600-3 | DN600 | 24" | 720 mm 28.35" | 1130 mm 44.5" |
| Z700-1 | DN700 | 28" | 810 mm 31.89" | 865 mm 34.1" |
| Z700-3 | DN700 | 28" | 830 mm 32.68" | 1223 mm 48.1" |
| Z800-1 | DN800 | 32" | 920 mm 36.22" | 865 mm 34.1" |
| Z800-3 | DN800 | 32" | 940 mm 37.01" | 1230 mm 48.4" |
| Z900-3 | DN900 | 36" | 1050 mm 41.34" | 1243 mm 48.9" |
| Z1000-1 | DN1000 | 40" | 1140 mm 44.88" | 996 mm 39.2" |
| Z1000-3 | DN1000 | 40" | 1160 mm 45.67" | 1325 mm 52.2" |
| Z1200-3 | DN1200 | 48" | 1380 mm 54.33" | 1422 mm 56.0" |
| Z1400-3 | DN1400 | 56" | 1600 mm 62.99" | 1470 mm 57.9" |
| Z1600 | DN1600 | 64" | 1800 mm 70.87" | 1147 mm 45.2" |
| Z2000 | DN2000 | 78" | 2260 mm 88.98" | 1255 mm 49.4" |
Frequently Asked Questions
What pipe types and sizes is the Socket Repair Clamp for Concrete Pipe compatible with?
The Socket Repair Clamp for Concrete Pipe fits DN100 to DN2000 pipelines and is engineered for pre-stressed concrete (PCCP) and self-stressed concrete. 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 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 Concrete 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.
