Information on the most widely used ASTM standards within the materials testing industry
HYD-B series Pipe hydrostatic pressure testing machine, Computer + LCD meter both way control.
HYD-B series Pipe hydrostatic pressure testing machine is designed according to ISO 1167, ASTM D1598, ASTM D1599. It's mainly used to test the plastic pipeline, compound pipeline, such as PP-R, PP-B, PP-A, PVC, PE, PE-X etc. Under a stipulated constant hydrostatic pressure force, keeping provision time; or inside the pipe, apply a constant and rapid hydraulic pressure to make the specimen broken in a short period time, check the max. pressure force, then calculate the ring stress. This tester is necessary equipment for plastic pipe manufacturer.
General introduction
UnitedTest Pipe hydrostatic testing machine is primarily used to simulate the pressure conditions that plastic pipes experience in actual use. By precisely controlling pressure and temperature, and conducting long-term or short-term tests, it comprehensively evaluates the pipe's pressure resistance, creep resistance, and service life, providing a scientific basis for product quality assessment, production process optimization, and safe usage.
Principle:
Test pieces are subjected to a specified constant internal hydrostatic pressure for a specified period of time or until a test piece or pieces fail.
Throughout the test, the test pieces are kept in an environment at a specified constant temperature: this is commonly in water (“water-in-water” test).
The following test parameters shall be specified by the standard or specification making reference to this part of ISO 1167:
a) the type of end cap to be used (see 5.1 and ISO 1167-2:2006, 4.1);
b) the test temperature;
c) the number of test pieces;
d) the duration of the test under pressure and the criteria for a failure;
e) the test pressure, p, or the circumferential (hoop) stress, σ, to be induced by the test pressure.
Standard:
ISO 1167: Thermoplastics pipes, fittings and assemblies for the conveyance of fluids -- Determination of the resistance to internal pressure;
ASTM D1598: Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure;
ASTM D1599: Standard Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings;
Main Features
1, Computer controlled test, and LCD meter control. Both way. And the both way independent, one type failure not affect the another way test.
2, All working stations can execute both the hydrostatic pressure test and burst test.
3, working station standard, can extend to more stations like 5, 6, 9, 12 etc., Customer can choose the test stations 2, 3 or 5, 6, 10 or even more.
4, Pressure 10Mpa (100bar) / 20Mpa (200bar);
5, All stations are totally independent, all stations can do burst test, and long term hydrostatic pressure test as well. Like test pressure, test time etc., can be free set on each test stations.
6, Setting the test parameter on the software, then operation is automatic till the test finish.
7, Test can be operated through the PC software, or manual operate on the meter of the mainframe.
8, Pressure-time curve, real-time pressure value checking is available.
9, 10mm ~ 2000mm large pipe sample range.
1, Constant-temperature tank is composed of 304# stainless steel interior and aluminum alloy/steel plate outer plate, no corrosion,
2, Imported circulation pump, high accuracy heater and temperature holding system;
3, Rigid and thick heat insulation polyurethane foam, and temperature proof layer to ensure the temperature and energy keeping performance, avoid energy loss.
4, For big tank, the cover of tank equipped with automatic lifting device, more reliable and convenient;

1, Annual production end closure tens of thousands sets to ensure our technical and quality of this important pipeline hydrostatic pressure test fixtures;;
2, We adopt raw material is 45# carbon steel or 304# stainless steel, several type end closures for pipe or pipe fitting;
3, ISO 1167 Type A structure, External type: for diameter 16mm till 2000mm, three to six petals structure(not welding), no leakage under high pressure, Nickle coating, reliable and durable, 100% success installation.
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| 1000mm end cap | Pipe joints end cap |

Main technical specification
| Model | HYD-B |
| Display type | Digital meter & PC software both way |
| Working station | 1 to 20 working stations |
| Burst test | All stations can execute the burst test |
| Hydrostatic pressure test | All stations can execute the long-term hydrostatic pressure test |
| Max. pressure | 0 ~ 10Mpa (100 bar) / 0 ~ 20Mpa (200 bar) |
| Constant pressure accuracy | -1%, +2% |
| Pressure resolution | 0.001Mpa |
| Time count range | 1~9999h 59min 59s |
| Time display accuracy | 1s |
| Constant temperature media box temp. | Ambient temperature to 95℃ 15℃ to Ambient temp. with cooling unit |
| Temp. indication accuracy | ±0.5℃ |
| Power supply | 380V AC 50HZ, 3 phase |
| Pipe sample diameter range | 10-2000mm (Customized) |
| Standard end cap | φ16, φ20, φ25, φ32, φ40, φ50, φ63, φ75, φ110, φ125, φ140, φ160, φ180, φ200, φ225, φ250,φ280, φ315, φ355, φ400, φ450, φ500, φ560, φ630, φ710, φ800, φ900, φ1000, φ1100, φ1200, φ1300…φ2400 |
| Customized end cap | φ1/2",φ3/4",φ1" …. φ20" etc., inch sizeor any other size according requirement. |
Main Accessories
| Item | Quantity |
| Frame | 1 set |
| (include solenoid, pressure sensor, accumulator) | |
| Pressure loading system | 1 set |
| (include pump, motor, Build-in water Reservoir) | |
| Constant temperature tank (stainless steel interior) | 1 set |
| Cooling unit for low temperature (Optional) | 1 set |
| Connection hose for pressure control system and constant temperature medium tank | 1 set |
| Connection hose for pressure source and pressure control system | 1 set |
| End closure (According sample diameter size) | |
| Computer | 1 set |
| Professional test software (English) | 1 set |
| Documents (Manual, packing list, certificate) | |
304# stainless steel end cap of pipe hydrostatic pressure test;
diameter size 10mm-2000mm.
Pipe break under hydrostatic pressure
3 stations standard INTERNAL PRESSURE TEST MACHINE.
What Is Hydrostatic Pressure Testing?
Hydrostatic Pressure Testing or hydrotest of pipes is a specialized testing method used to assess the pressure resistance performance of pipes under constant pressure and temperature, mainly applied to quality inspection of plastic, composite, and other types of pipes.
Testing Principle: By applying constant pressure inside the pipe and maintaining it for a specified duration (such as 24 hours or longer), the test simulates the stress state under actual working conditions, observing whether any cracking, leakage, or deformation occurs, thus evaluating the material's pressure resistance strength and sealing ability.
In What Application scenario you need use the Hydrostatic Pressure Testing Equipment?
The static Hydrostatic Pressure Testing of pipes is mainly used to assess the pressure resistance and sealing performance of pipes under constant pressure, and its application scenarios cover multiple fields:
Gas Pipeline Safety Testing:Used for strength verification of underground polyethylene gas pipeline systems, simulating actual working conditions to test the pressure resistance of the pipeline, ensuring gas transportation safety.
Plastic Pipe Performance Testing:Applicable to long-term pressure resistance testing of thermoplastic pipes such as PE, PVC, and PP-R, conducted according to the national standard ISO 1167 to evaluate their cracking resistance and sealing performance.
Automotive Component Testing:Can determine the pressure endurance time and burst pressure values of automotive hoses, rubber hoses, air conditioning pipes, etc., ensuring the safety of automotive hydraulic systems.
Metal Pipe Verification:Conduct macro strength and sealing tests on metal pipes such as steel and aluminum pipes to ensure the stability of metal pipelines under high-pressure environments.
Other Material Testing:Applicable to pressure resistance evaluation of non-metallic materials such as rubber hoses and geothermal pipes, by controlling pressure and temperature parameters to simulate actual use scenarios.
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