The hydraulic valve test bench is testing equipment that integrates electromechanical, hydraulic, and liquid medium storage and circulation systems. It has perfect functions, stable performance, and a high degree of automation. It can be widely used for strength testing of various valves, and can also perform various performance tests for valve sealing and anti-leakage, providing various accurate data for industrial production. During the test, it uses the test pressure of the first valve as a reference to adjust the boost pressure of the tested valve. It is strictly forbidden to have an excessively high boost pressure to prevent the valve from being deformed and damaged. Before the hydraulic water supply pump starts to work, it is necessary to adjust the pressure of the electric contact pressure gauge and the valve under test to the same, and then start the operation. Due to the wide variety of valves on the market, the applications of valves in different industries are different. How to produce qualified valves that meet the needs has become a major problem for valve manufacturers. How to test and check the performance of the valves to ensure the valve's qualification and related Standards, we need to use the corresponding valve testing equipment, several of the more commonly used testing equipment.
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Valve Pressure Test Bench
The safety valve calibration table is suitable for the performance test of setting pressure, reseating pressure, and tightness of direct load type and pilot type safety valve.
It is suitable for the valve body strength test and high and low-pressure airtightness performance test of various globe valves, plug valves, check valves, ball valves, regulating valves, valve blocks, and other high-pressure valves, gas cylinder valves and bottle head valves, and instrument valves.
1. The test medium can be water, oil, and gas, which is selected by the user.
2. The ultra-high pressure test bench can be customized according to user needs.
3. The clamping method of the valve is to apply pressure, and the direct flange connection valve is clamped by the side pressure.
It is suitable for pressure test and inspection of various instrument valves, industrial gas cylinder valves, fire gas cylinder valves, and other products.
Applicable to the testing and inspection of various instrument valves, industrial gas cylinder valves, fire gas cylinder valves, and other products;
It is suitable for performance test of setting pressure, reseating pressure and tightness of direct load type and pilot type safety valve;
It is suitable for the static pressure life test of various high-pressure valves and instrument valves such as globe valves, plug valves, check valves, ball valves, regulating valves, valve groups, etc.;
The system is suitable for the flow characteristics of the quick connectors, solenoid valves, ball valves, needle valves, regulating valves and other valves and instruments, and the CV value of the flow system;
It is suitable for various performance tests of various gas cylinder valves to meet the functional and type tests of gas cylinder valves of production units, scientific research institutes, and testing institutions;
Now with the increase in market demand, the types of valve test machine tools are more diversified, including top pressure vertical valve tester, horizontal valve pressure test bench, multi-power position hydraulic valve testbed, diving hydraulic Valve testbed, etc. The user can choose according to the specific situation. The moving parts of the test stand should be lubricated frequently to maintain cleanliness and lubrication. The hydraulic oil should be checked regularly and replaced according to new application equipment. The oil level cannot be lower than the lower limit of the oil level gauge. Valves are a common part of modern production. The performance testing of valves is very important. In the future, the market for hydraulic valve testbeds will be even broader.
Quality inspections and valve testing are extremely important when it comes to the smooth running of fluid systems. Industrial valves are an integral part of many industrial machines and even the tiniest malfunction can have a ripple effect on the rest of the machine. Therefore, it’s important to carry out the right checks to ensure safety and efficiency.
When it comes to testing valves, there are multiple valve testing procedures used and all of them need to conform to the strict acceptance criteria or performance standards. In this article, we’ll go through the key things you need to know about valve inspection procedures and tests.
Valves come in all different shapes and sizes depending on what industry or application they are being used for.
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These are the most common types of valves:
Valves need to conform to certain leakage standards and various other checks are also carried out. Valve testing and inspections should ideally be done every 12 months or so to ensure they are still in the best working condition. However, this will vary depending on the age of the valve, the condition of the valve, and what type of valve is in question.
Valve leakages are a common phenomenon. They can happen for many different reasons. But there are two primary ways a leak can happen in a valve: fugitive emissions from a valve escaping into the atmosphere and leaks escaping through the valve but remaining contained within the piping system.
The first can naturally damage the environment and become a potential safety hazard to people. Valves are considered to be the major reasons for fugitive emissions being lost so quality management and testing of valves are important.
Valve leakage is a common problem in most industries and it can be caused by a series of factors. But the most common causes of leakages in valves include a valve not being fully closed because the valve seat is being prevented from closing due to dirt, rust, or line debris; there being insufficient actuator travel, or the valve seat being damaged. There are naturally other factors that could cause leakages and testing will check for all of these potential issues.
The reasons for potential leaks into the atmosphere could include the gasket between the valve body and valve bonnet being damaged or the stem packing being out of place, worn, or damaged in some way.
Valve testing is a process that is used to test and evaluate the health or condition of an operational valve. Naturally, there are many different types of tests and inspections that are performed on valves to ensure they are in the best condition and safe for use.
A typical testing procedure for a hydrostatic valve might involve the following stages:
Here is a list of the most common types of tests carried out to check for valve leakages and the types of valves associated with them:
The valve seat tests procedure involves placing a valve under pressure, then measuring the amount of leakage on the other side of the valve. The test pressures are often determined according to the American Society of Mechanical Engineers (ASME) B16.34.
Valve backseat tests are commonly conducted on valves that have a backseat element, such as the gate and globe valve types. The back seat tests are performed according to the approved test procedure, but they often involve opening the valve while the packing gland is loose or not installed.
The closure test is a test that is typically conducted on valves that are used in full closed and full open service. These kinds of valves include, but are not limited to, stop valves, globe valves, plug valves, and ball valves.
Valve Shell Leakage Test is a test that helps identify the presence of water and other fluids in the valve casing. The test is conducted by pressuring the valve for a specified amount of time, usually one minute or more, and looking for leaks. They are performed on valves like a check, stop, and isolation types.
Below is a breakdown of some of the most common valve testing standards:
All of the above documentation can be gained through a third-party quality management company such as HQTS. Our inspectors are ready to perform testing on your valves to ensure only the best products leave your factory which keeps your customers happy and the environment in a better state.
The quality control procedure for valves is integral to the success of any manufacturing process. Valves are important in many fields – and even the smallest malfunction can have a detrimental effect on operations. The valve inspection procedure ensures that the valve is free of defects and will meet the defined quality standards
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