Pipeline Testing Equipment

 
 
Development path of ZWH (Ziwei Test)
1996

Shenyang Ziwei Electromechanical Equipment CO.,Ltd. was established and started business.

1997

The first domestic plastic pipe pressure resistance burst test bench was developed successfully.
The first domestic valve test bench was developed successfully.

1998

Keep innovating.
The first domestic bathroom nozzle pressure flow test system was developed successfully.

2001

Breakthrough field.
The pilot unit of experimental training base of National Building Energy Conservation Testing Center.

Why Choose Us

Professional Team
ZWH pays great attention to the development of employees, the company has developed to the present day, which has emboldened the loyalty, enthusiasm and creativity of all employees, thus forming a team with appeal, cohesion and centripetal force.


One-stop Solution
We can offer a range of services, from consultation and advice to product design and delivery. It is a convenience for the customers, as they can get all the help they need in one place.


Rich Experience
Dedicated to strict quality control and attentive customer service, our experienced staff is always available to discuss your requirements and ensure complete customer satisfaction.


After-Sale Service
Professional and thoughtful after -sales team, let you worry about us after -sales Intimate service, strong after -sales team support.

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What is Pipeline Testing Equipment?

 

 

Pipeline Testing Equipment or uses traditional methods to inspect pipelines. The inspection includes the quality of the anti-corrosion layer of the pipeline, defects and damage of the pipeline body, etc. There may be defects in pipelines during the manufacturing and operation processes. It is necessary to detect pipelines in a timely manner to accurately understand the operating status of pipelines and ensure reliable and safe operation of pipelines.
The emergence of Pipeline Testing Equipment can not only detect diseases in underground pipelines, but also assist workers in determining the direction of the drainage pipe network, which has brought great significance to ensuring the normal operation of underground pipelines in the process of urbanization.

Benefits of Pipeline Testing Equipment
 

Can improve work efficiency

The so-called good work, must first sharpen its device, the traditional Pipeline Testing Equipment or maintenance work generally needs to be buried in the underground pipeline dug out and then construction operations. However, when the excavation work often takes a lot of time, the pipeline inspection, maintenance also need to be buried again, so it costs time. Easy-to-use pipe inspection equipment is similar to pipeline robot, which does not have to start work to improve work efficiency.

Reduce operating costs

As mentioned above, the quality assurance of pipeline inspection technology can eliminate the need to break ground, thus saving the construction of temporary construction walls on the road, and thus saving the corresponding engineering expenses. The use of pipeline detection equipment can directly open the well cover for the operation, and for pipeline problems will be directly recorded and feedback, convenient for the construction team.

Can enhance operation safety

Because the environment of the pipeline is relatively closed and special, it is dangerous to run the well without knowing its internal environment. The use of pipeline inspection equipment does not require or reduce the frequency of workers going down the well and entering the tube way. It can directly enter the pipeline to detect pipeline problems, which has the function of replacing manual operations, thereby enhancing the safety of the construction process.

Type of Pipeline Testing Equipment

 


Diameter Detection Technology
This technology is mainly used to detect geometric deformation of pipelines caused by external forces and determine the specific location of the deformation. By using pipeline inspection equipment or utilizing the principle of magnetic induction, pits, ovality, geometric changes in the inner diameter, and other geometric anomalies that affect the effective inner diameter of the pipeline can be detected.


Leak Detection Technology
At present, the more mature technologies in the field of leakage detection technology are the pressure difference method and the acoustic wave radiation method. The former consists of a pipeline detection equipment with a pressure measuring device. Considering that the pressure formed in the pipeline at the leakage point is relatively low, the leakage situation can be interpreted by installing a detection instrument here; the latter uses acoustic leakage Based on detection, the unique sound generated when the pipeline leaks is used to collect it through electronic pipeline detection equipment with appropriate frequency selection, and then detect and determine the location of the leak through the mileage wheel and marking system.


Magnetic Flux Leakage Detection Technology
Among all pipeline inspection technologies, magnetic flux leakage inspection appeared earlier because it can detect volumetric defects caused by corrosion inside and outside the pipe island. It has low requirements on the inspection environment and can be used in both oil and gas pipelines. , and can also indirectly determine the coating condition. Pipeline inspection equipment designed using this technology has a wide range of applications. In fact, since magnetic flux leakage is a relatively noisy process, even without any form of amplification of the data, abnormal signals are obvious in the data recording, and its application is relatively simple.

What Can Pipeline Testing Equipment Do?

The production of working equipment is mostly based on work requirements. For Pipeline Testing Equipment, because the market has different requirements for pipeline inspection work, the equipment has different functions, but it can be roughly divided into the following three types of basic work.

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Pipeline Testing Equipment Can Detect The Sludge In The Pipe
The most common type of pipeline is the municipal pipeline, among which the sewage pipeline occupies a large proportion. The detection and maintenance of this type of pipeline can actually be said to have a certain periodicity. Easy-to-use pipeline detection equipment can often detect the sludge deposition in the pipeline, which has an intuitive response to the smoothness of urban sewage, and also ensures the cleanliness of urban sanitation.


Pipeline Testing Equipment Can Detect The Location Of Pipeline Cracks
Due to different materials or uses, different pipes are often cracked or cracked during use and even burst in severe cases, which brings a lot of hidden dangers to the life safety of rural or urban residents and factory employees. Pipe inspection equipment can learn the location of the rupture and the size of the wound through the pipeline inspection technology of high-definition underground pipe inspection camera and sonar detection, and provide corresponding information for subsequent repair work.


Pipeline Testing Equipment Can Detect The Gas Composition In The Pipe
Most of the functions of pipelines can be classified as the transportation of gases and liquids. Whether in industry or in life, the gas and liquid in the pipelines have certain complexity, and it is dangerous to enter or open the pipeline suddenly. Pipeline Testing Equipment with reliable quality can detect the gas in the pipeline to a certain extent, making industrial production and pipeline inspection safer.

 

That the functions of Pipeline Testing Equipment are relatively diverse, and the pipeline inspection technology can basically meet the daily work of pipeline inspection, and at the same time, it has different corresponding functions according to the properties of different pipelines. As for the detection of the humidity, temperature and wind speed of the pipeline, there is also room to play a role.

What the Pipeline Inspection Equipment does?

In cities, it is very common for various pipelines to crisscross and pile up pipeline systems, but the management of pipelines is indeed very difficult. When these pipelines are used for a long time, problems of one kind or another will inevitably occur. Many places have begun to use testing equipment.

 

Check Pipe Corrosion And Its Age
Problems such as aging pipes and complementary feeding need to be measured and discovered in advance instead of waiting for problems to occur before remediating them. This not only consumes cost, but also consumes time. Generally, the pipes are inspected through testing equipment to see which parts Problems can be remedied in time to prevent serious corrosion or aging. If such problems occur, they can be repaired in time.

 

Check For Pipe Leaks
The installation environment of pipelines is relatively complex. No matter what kind of pipeline it is, problems of one kind or another will occur over time. Many problems must be discovered and dealt with in time, otherwise they will cause certain losses. Through inspection The equipment can detect these problems in time, allowing maintenance staff to repair them in time.

 

Data Transmission
After testing, the testing equipment can bring the test results to the staff, just like when taking pictures to learn about the situation inside the pipeline, or when testing the pipeline through ultrasonic and other technologies, it can also timely discover whether there are any problems inside the pipeline. In order to prevent foreign matter blockage and other aspects, the functions of this monitoring equipment can be increased or decreased according to the actual situation.

 

Pipeline inspection equipment has too many functions. It can not only check for problems of this kind, but also transmit detailed data back. Now it has been widely used. I believe that with the continuous improvement of this technology, people will pay more attention to the pipeline system. management will also become better.

Working principles and methods of Pipeline Testing Equipment
 

Is working principle is that after the pressure Pipeline Testing Equipment, when the pressure water rushes out from the damaged opening of the pipe, the sound vibration and other additional vibrations caused by the friction with the pipe wall are transmitted to the top of the pipe floor, and instruments are used to detect the leakage point on the road surface.

 

Generally speaking, the basic detection method is: connect the host, headphones, and sensors. Turn on the switch, wear headphones, place the sensor on the road above the pipeline, place it step by step according to the length of the steps, and measure the listening step by step. The closer to the leak point, the stronger the signal, and the farther away from the leak point, the weaker the signal. By comparing different points The signal strength between them achieves the purpose of detecting leakage points. Therefore, when we use the instrument, it is meaningless to listen to the leakage signal at just one point.

 

We need to compare it repeatedly at multiple points. The place with the larger sound vibration is the leaking point. Of course, we also need to consider many other additional factors. For example, the direction of the leakage point and the damaged opening is a problem. Because the pipeline is round, if there is water leakage from the side, the larger point may be on the side of the road above the pipeline instead of on the road above the pipeline, so the location of the pipeline must be clear. , In addition, tees, turns, water pressure, burial depth, buried layers, etc. will all have an impact, and these should be taken into consideration during inspection.

Pipeline Testing Equipment Importance

 

 

In this case, the line is filled with water and subjected to pressure by means of special pumps. When the required pressure has been reached, it is maintained for a number of hours, during which any tendency for that pressure to drop is a clear indication that the pipeline-testing procedure has detected a leak. Once this has been located and repaired, the pipe must be re-pressurised and the Pipeline Testing Equipment repeated to confirm that the repair was effective. The precise time and pressure requirements for the Pipeline Testing Equipment depend on the test specifications and will usually be dictated by the client.


To mitigate the risks of a failure during Pipeline Testing Equipmenting, most operators utilise a technology that can detect weaknesses and anomalies before they become serious enough to fail a Pipeline Testing Equipment. This technology is called intelligent pigging and has become standard practice in the oil and gas industries for inspecting transmission and distribution pipelines.

 

However, some pipeline’ design is of such a nature that they cannot be inspected by intelligent pigs at all and these are mainly the short lines – the types that are typically found at tank farms or inside the boundaries of the oil and gas facilities. They are typically identifiable by the absence of permanent pig traps but they also typically have very short-radius bends or even mitre bends, many have pipe diameters that vary and reduced bore valves.

 
Our Factory

 

Development path of ZWH (Ziwei Test)
1996: Shenyang Ziwei Electromechanical Equipment CO.,Ltd. was established and started business.
1997: The first domestic plastic pipe pressure resistance burst test bench was developed successfully.
The first domestic valve test bench was developed successfully.
1998: Keep innovating.
The first domestic bathroom nozzle pressure flow test system was developed successfully.
2001: Breakthrough field.
The pilot unit of experimental training base of National Building Energy Conservation Testing Center.

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Certificate
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FAQ
 

Q: How do you test pipelines?

A: During a hydrostatic test, pipeline workers fill an isolated section of pipe with water, pressurizing the pipe until it's slightly above its normal pressure requirement. Workers then hold the pipe at that pressure level and record information about the volume and pressure levels within the pipeline.

Q: What are the methods of pipe testing?

A: These testing methods include hydrostatic testing, pneumatic testing, ultrasonic testing, magnetic particle testing, radiographic testing, visual inspection, and leak testing. It also highlights how these methods contribute to safety, operational standards, and quality assurance in piping systems.

Q: What are the standards for pipeline pressure testing?

A: The hydrostatic test pressure at any point in the piping system shall not be less than 1.5 times the design pressure, but shall not exceed the maximum allowable test pressure of any non-isolated component, nor shall it exceed the limits of calculated stresses due to occasional loads.

Q: How do you test for leakage in piping?

A: The piping being tested is isolated and filled with water to the test pressure. All joints, both welded and mechanical, are then visually inspected for leakage. The sensitivity of the hydrostatic testing method is in the range of 1 to 10− 2 std.

Q: How do you test a pipe for leaks?

A: The two most common water leak detection tests are Hydrostatic Testing and Isolation Testing. Hydrostatic Testing involves pressurizing the tank or pipe while monitoring water levels in the system. On the other hand, Isolation Testing involves blocking and pressurizing a specific section of a plumbing system.

Q: How do you pressure test a piping system?

A: The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection, and pressurization of the vessel to the specified test pressure. Pressure tightness can be tested by shutting off the supply valve and observing whether there is a pressure loss.

Q: How do you hydrotest a pipeline?

A: Hydrostatic testing involves isolating that portion of the pipeline undergoing testing, filling it with water, and then pressurizing the line to a specified pressure to check for leaks.

Q: What is the importance of pipe testing?

A: Subsequently, pipe-testing work is also done as part of a pipeline, or a tubing system's regular maintenance. Wear and tear can affect the quality of the pipe, so they need to be periodically tested for any flaws that may result in order to measure the serviceability of the pipe.

Q: How do you measure pressure in a pipeline?

A: The simplest method of measuring the pressure of a fluid in a pipe is to use a piezometer ("pressure measuring") tube. This is a tube, containing the fluid under pressure, in which the fluid is allowed to rise to a height that corresponds to the excess of the pressure of the fluid over its surroundings.

Q: What is the primary objective of pipeline testing equipment?

A: The main goal is to ensure that pipelines are safe, functional, and free from defects that could lead to failures, leaks, or accidents. This involves regular inspections and tests to verify the structural integrity and operational performance.

Q: How does hydrostatic testing equipment work?

A: Hydrostatic testing involves filling the pipeline with water and pressurizing it above the maximum operating pressure. The equipment monitors the pressure over time to detect any loss due to leaks or weaknesses in the pipe wall.

Q: What are the benefits of smart pigging technology?

A: Smart pigging allows for the internal inspection of pipelines without interrupting service. It provides precise data on the condition of the pipe, including the presence of cracks, dents, and corrosion, which helps in planning maintenance and repair work.

Q: Can pipeline testing equipment detect small leaks?

A: Yes, modern pipeline testing equipment, especially sophisticated leak detection systems, is capable of identifying even very small leaks. These systems use various technologies, such as acoustic detection, pressure wave analysis, and tracer gas methods.

Q: What is the role of flow measurement equipment in pipeline testing?

A: Flow measurement equipment is critical for confirming that pipelines are delivering the correct amount of fluid within acceptable parameters. Accurate flow measurements help in optimizing operations, billing, and ensuring compliance with contractual obligations.

Q: What valve testing equipment is available, and how is it used?

A: Valve testing equipment includes devices that simulate the opening and closing of valves to ensure they function properly under different conditions. This testing is vital for preventing valve failures, which could result in significant disruptions to pipeline operations.

Q: How does corrosion monitoring equipment work, and why is it important?

A: Corrosion monitoring equipment uses sensors to measure the rate at which pipelines are corroding. By understanding the rate of corrosion, operators can implement timely mitigation measures to prevent pipeline failure due to material thinning.

Q: How often should pipeline testing be conducted?

A: Testing frequency varies depending on factors such as the type of pipeline, its age, the nature of the transported substance, and the regulatory requirements. Regular testing is typically scheduled annually or semi-annually for most pipelines.

Q: How does the integration of technology enhance pipeline testing?

A: The integration of advanced technologies enhances pipeline testing by providing more accurate and real-time information, enabling proactive maintenance, reducing downtime, and improving overall safety and reliability.

Q: How does environmental regulation impact pipeline testing?

A: Environmental regulations influence pipeline testing by requiring regular and rigorous inspections to prevent leaks and spills that could harm the environment. Compliance with these regulations is mandatory and enforced by government agencies.

Q: What is the future direction of pipeline testing equipment?

A: The future direction of pipeline testing equipment is likely to involve greater automation, enhanced data analytics capabilities, and the development of new technologies that allow for more frequent and detailed inspections without disrupting pipeline operations.

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