Information on the most widely used ASTM standards within the materials testing industry
Pipe Hydrostatic Pressure Test
Pipe hydrostatic testing machine is a precision testing device specially designed to test the long-term pressure resistance and short-term burst performance of plastic pipes, composite pipes, and other pipeline materials. It is widely used in pipe manufacturing enterprises, quality inspection agencies, and research institutions, and is one of the core pieces of equipment for evaluating pipe quality and service life. It can also undergo stability performance testing (110°C, 8760 hours), pipe slow crack resistance testing (notch test), fitting system compatibility, and other pressure tests.
Our Most Popular Products for Hydrostatic Testing
ISO 1167 Pipe Hydrostatic Pressure Tester
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Hydrostatic Pressure and Burst Tester, ASTM D1598
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Hydrostatic pressure constant temperature tank
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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.
1, Short-term burst test: Under higher pressure and specified temperatures (such as 20°C, 40°C, 60°C), test the instantaneous pressure resistance limit of the pipe to determine whether it meets the minimum burst pressure requirements specified by the standard.
2, Long-term static hydrostatic life test: Under lower pressure and conditions close to actual operating temperatures, conduct continuous pressurization tests for several thousand to tens of thousands of hours, and estimate the long-term service life of the pipe through data fitting (for example, predicting the pressure resistance corresponding to a 50-year service life).

Hydrostatic pressure test report
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.
What Data and Result you can get from the Hydrostatic Pressure Testing?
Pressure Resistance Performance
By simulating the long-term pressurized environment of pipes, the creep resistance and durability of the pipe material are assessed. According to standard requirements, the pressure values are adjusted based on the designed pressure rating of the pipe (e.g., SDR11, SDR17) and the test temperature (20°C, 80°C); for instance, the test pressure for PE100 pipes at 80°C is generally 4.6MPa.
Temperature Control
The tests need to be conducted in a constant temperature environment, with temperature fluctuations controlled within ±1°C. If the temperature deviation exceeds this range, it may lead to invalid test results or data errors. For example, a temperature increase of 2°C can accelerate the pipe's creep, resulting in a shorter test duration.
Failure Modes
Record the rupture time and failure mode of the pipe material (ductile fracture or brittle fracture), and analyze the material properties through features such as the elongation rate and cross-sectional flatness. For example, brittle fractures are often caused by processing defects or material degradation.
Data Recording
Real-time acquisition of pressure, time, and temperature parameters in synchronized curves is necessary, with a sampling frequency of ≥1Hz. Data should include original waveform recordings and photographs of failure modes. Manual recording can easily lead to transcription errors, so it is recommended to use an automated acquisition system.
Why Choose UnitedTest Hydrostatic Pressure Testing Machine and the feature of UnitedTest testing machine?
HYD series Pipeline 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.
Importance of Hydrostatic Testing
If the static hydrostatic pressure strength performance of the pipe is not qualified, the pipe is susceptible to rupture and leakage under certain working pressures, leading to the failure of the water supply system to operate normally, severely affecting the lifespan of the project and posing significant safety risks. Therefore, when pipes are used for water supply purposes, static hydraulic strength is a key indicator for testing the pressure resistance performance of the pipes, and it is also an important criterion for controlling the quality of the pipes.

Key Chalenges of Hydrostatic Testing?
A: Test Pressure Setting
The pressure value needs to be precisely calculated based on the pipe design pressure grade (such as SDR11, SDR17) and the test temperature (20℃, 80℃). If there is a standard misuse (such as incorrectly recording the pressure value of PE100 pipes as 4.2MPa instead of 4.6MPa), it may lead to test failure.
B: Temperature Control Accuracy
A temperature fluctuation exceeding ±1℃ (for example, a drift from 80℃ to 82℃) will accelerate the creep of the pipe materials, resulting in a shortened test duration or misjudgment of the pressure threshold. For instance, a temperature increase of 2℃ can cause PE80 pipes to rupture 200 hours earlier in a 1000-hour test.
C: Pipe end cap Installation
The installation procedure for large fixtures is complex, the weight of the pipe is heavy, making it difficult to operate. If the sample is not circular and irregular, it can cause pressure leaks.
Benefits of Using Our Hydrostatic Pressure and Burst Tester
1, Quality Assurance: With our tester, manufacturers can ensure that each batch of plastic pipes is subjected to rigorous quality checks. This guarantees the reliability of products and instills confidence among end-users.
2, Regulatory Compliance: Adhering to industry standards is crucial. Our testing equipment is designed to meet various regulatory requirements, aiding manufacturers in achieving compliance without headaches.
3, Streamlined Production: Achieve higher levels of efficiency in your production process. By utilizing our Hydrostatic Pressure and Burst Tester, manufacturers can quickly identify weak links in their pipe production and make necessary adjustments, leading to enhanced efficiency and reduced waste.
4, Increased Product Lifespan: Ensuring the strength and durability of your products contributes significantly to their lifespan. Our testing equipment helps to identify materials and designs that may lead to failure under pressure, allowing for improvements that enhance overall product longevity.
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