Overview
Our φ114–219 mm, Hydrostatic Tester for OCTG Production Line conducts hydrostatic pressure testing for seamless and welded pipes over a wide OD range to uncover concealed internal pipe defects. Fitted with wide-opening radial and end-face sealing assemblies, it securely seals pipe ends before high-pressure water is pumped into the pipe bore. The test pressure is maintained in compliance with industry specifications including API 5CT to validate sealing integrity and detect leakage. All test data is automatically saved to a dedicated database for full traceability. Its integrated auto/manual dual-control system ensures stable, safe and environmentally compliant operation.

Process Flow
The hydraulic pressure test has three processes: pipe flushing, pressure testing and water drainage, and they are run in sequence as follows:
(Loading Rack → Pipe Stop & Distributor) → Pipe Tilting → Alignment & Flushing → Standby Station → Feeding into Testing Machine → Clamping by Jigs → Both-End Test Heads Advance to Position → Pre-sealing → Water Filling & Venting → Pipe Body Pressure Boosting → Pressure Holding → Sequential Pressure Relief → Both-End Test Heads Retract → Jigs Release, Steel Pipe Retracts from Test Heads → Pipe Discharge from Testing Machine (signal output for untest-passed pipes) → Residual-water Blowing-off → Discharge onto Unloading Rack → Next Cycle
Specifications
| NO. | Products Name | Specification |
| 1 | φ12-42 Hydrostatic Testing Machine | GH42,12-42mm O.D;4-station,Max. pressure:120Mpa |
| 2 | φ21.3-50 Hydrostatic Testing Machine | GH50,21.3-50mm O.D; 6-station,Max. pressure:120Mpa |
| 3 | φ76 Hydrostatic Testing Machine | GH 76,21.3-76mm O.D; 6-station,Max. pressure:120Mpa |
| 4 | φ12-89 Hydrostatic Testing Machine | GH89,12-89mm O.D; 4-station,Max. pressure:120Mpa |
| 5 | φ≤89 Hydrostatic Testing Machine | GH89,double station,Max. pressure:120Mpa |
| 6 | φ89 Hydrostatic Testing Machine | GH 89,21.3-89mm O.D; 6-station,Multi-pipe processing (1-8 stations).Max. pressure:120Mpa |
| 7 | φ12-108 Hydrostatic Testing Machine | GH108,12-108mm O.D;4-station,Max. pressure:120Mpa |
| 8 | φ60-114 Hydrostatic Testing Machine | GH114,60-114mm O.D;Single station-threads sealing,Max. pressure:120Mpa |
| 9 | φ48-114 Hydrostatic Testing Machine | GH114,48-114mm O.D;Double station-oil cylinder driven,Max. pressure:120Mpa |
| 10 | φ21-120 Hydrostatic Testing Machine | GH120,21-120mm O.D;Single station-Titanium tube,Max. pressure:120Mpa |
| 11 | φ60-168 Hydrostatic Testing Machine | GH168,60-168mm O.D;Double station,Max. pressure:120Mpa |
| 12 | φ60-178 Hydrostatic Testing Machine | GH180,60-178mm O.D;Double station-oil cylinder driven,Max. pressure:120Mpa |
| 13 | φ60-178 Hydrostatic Testing Machine | GH180,60-178mm O.D;Single station-leading screw driven,Max. pressure:120Mpa |
| 14 | φ60-178 Hydrostatic Testing Machine | GH180,60-178mm O.D;Single station,Max. pressure:120Mpa |
| 15 | φ73-219 Hydrostatic Testing Machine | GH219,73-219mm O.D;Single station,Max. pressure:80Mpa |
| 16 | φ60-219 Hydrostatic Testing Machine | GH219,60-219mm O.D;Double station,Max. pressure:80Mpa |
| 17 | φ219-3 Hydrostatic Testing Machine | GH219,89-219mm O.D; 3-station,Max. pressure:80Mpa |
| 18 | φ219-4 Hydrostatic Testing Machine | GH219,114-219mm O.D; 4-station, Max. pressure:80Mpa |
| 19 | φ245-2 Hydrostatic Testing Machine | GH245,Max.245mm O.D; 2-station,Max. pressure:80Mpa |
| 20 | φ178-273 Hydrostatic Testing Machine | GH273,178-273mm O.D; Single station,Max. pressure:80Mpa |
| 21 | φ178-325 Hydrostatic Testing Machine | GH325,178-325mm O.D; Single station,Max. pressure:80Mpa |
| 22 | φ325 Hydrostatic Testing Machine | GH325,Max.325mm O.D; 2-station,Max. pressure:80Mpa |
| 23 | φ178-340 Hydrostatic Testing Machine | GH340,178-340mm O.D;Single station,Max. pressure:80Mpa |
| 24 | φ178-355 Hydrostatic Testing Machine | GH355,178-355mm O.D;Single station,Max. pressure:80Mpa |
| 25 | φ219-426 Hydrostatic Testing Machine | GH426,219-426mm O.D;Single station,Max. pressure:80Mpa |
| 26 | φ219-508 Hydrostatic Testing Machine | GH508,219-508mm O.D;Single station,Max. pressure:80Mpa |
| 27 | φ406-630 Hydrostatic Testing Machine | GH630,406-630mm O.D;Single station,Max. pressure:80Mpa |
| 28 | φ630-1000 Hydrostatic Testing Machine | GH1000(End-face sealing-single station),630-1000mm O.D;Max. pressure:80Mpa |
| 29 | φ630-1500 Hydrostatic Testing Machine | GH1500(End-face sealing-single station),Max. pressure:80Mpa |