was established in 2009 ,during these years Caminix valve testing equipment has been developed into the international market as the superior leader in China domestic market, regarding both the market share and the advanced technology. Our valve testing equipment have being sold to over 20 countries and won a high reputation with good quality and strong after sale services.
If you want to learn more, please visit our website Valve Test Bench Price.
All of our products are designed , developed, manufactured and tested by ourselves. The product development is influenced by the experience that many of our customers have made during their various assignments and also the strong engineer team supporting.
We have various types of
Valve test bench/ valve grinding machine
for different valves with different specification, Please check our products details and welcome to give us some suggestions.Our highest priorities are to secure the production , products quality and after sale services.
CAMINIX BUTTERFLY VALVE TEST BENCH
Key Features:
Designed to test Butterfly Valve/Wafer CheckValve/Knife Gate Valves
Size range: 2''-80'' DN50-DN2000
Pressure range: Class 150-Class300 PN16-PN40
( Pressure to be confirmed as different customers require different pressure ,
customization services available )
Hydraulic Clamping system with jaws, by means of clamping flanges
with blind flange adaptors ensure the positive seals of the valve flanges.
Vertical Design
Stainless steel tubes and pipelines available
With interlock functions for safety
Testing fluid by water or air ,water with a corrosion inhibitor,
according to international valve testing& Inspection standard like API598 etc
Recycle water tanks
Air driven liquid booster pump(Maximator or Haskel)
Data acquisition system is available, including PLC,Touch screen,
Printer,with test graphs & reports.
DN50
25.0 MPa
2.5-38.0 MPa
DN65
25.0 MPa
1.6-38.0 MPa
DN80
25.0 MPa
1.6-38.0 MPa
DN100
15.0 MPa
0-25.0 MPa
DN125
15.0 MPa
0-24.0 MPa
DN150
10.0 MPa
0-15.0 MPa
DN200
5.0 MPa
0-8.0 MPa
DN250
4.0 MPa
0-6.0 MPa
DN300
2.5 MPa
0-3.8 MPa
1.Hydraulic Control Station
7. Clamping Cylinder
13. Movable Cylinder
2. Pressure Gauge
8. Movable Working Table
14. Assembly
3. Control Panel
9. Control Valves
15. Hydraulic Oil Entry
4. Sealing Plates
10. Low Pressure Pump
16. Motor (Oil Pump)
5. Right Table
11. High Pressure Pump
17. Pressurizing Cylinder
6. Clamping Claws
12. Distribution Box, Oil Cooler
Testing Range of CMX-F300 DN50-DN300
If you are looking for more details, kindly visit Gate Valve Test Bench.
Model Name
Size Range of the tested valves
Pressure Rating
Testing Pressure
End
CMX-F300
DN50
2''
Class1500
10-380bar
RF RTJ
DN80
3''
Class1500
10-380bar
DN100
4''
Class900
10-250bar
DN150
6''
Class900
10-250bar
DN200
8''
Class600
10-160bar
DN250 10''Class600
10-160barDN300
12''
Class600
10-150bar
PLEASE CONTACT CAMINIX FOR MORE INFORMATION , CUSTOMIZED DESIGN AVAILABLE
Testing Range of CMX-F600 DN300-DN600
Model Name
Size Range of the tested valves
Pressure Rating
Testing Pressure
End
CMX-F600
DN300
12''
Class900
10-240bar
RF RTJ
DN350
14''
Class900
10-240bar
DN400
16''
Class600
10-150bar
DN450
18''
Class600
10-150bar
DN500
20''
Class300
10-75bar
DN600 24''Class300
10-75barPLEASE CONTACT CAMINIX FOR MORE INFORMATION , CUSTOMIZED DESIGN AVAILABLE
FAQ
FAQ
1. Are you the manufacturer ?
Yes, we are the manufacturer with more than 10 years' experiences in the valve grinding machine & Testing equipments design & development and manufacture.
2. What is your company brand?
We have CAMINIX , CMXCNC, DORY, for the different products line.
3. What is your mininal order qty?
We are manufacture the machines for the industry, the mininal order is one .
4. What is your delivery time?
Our delivery time depends on the machine model, please contact us when inquiry for detailed information.
5. What is your payment term ?
Our standard payment is 50% advance payment by T/T after order confirmation, balance payment 50% paid by T/T before shipment.
6. What is your machine warranty ?
Our machines are guaranteed by 12 months after date of shipment.
7. Can you do OEM services ?
Yes, we can , we can use your logo, please specify when order.
8. Do you have any references in overseas?
Yes, we have. We have exported many machines to overseas market, There are some wellknow company like Emerson, Praxair etc.
Please contact us for detailed information.
For many years, ultrasound has been utilised by various vendors as an additional method to find the set point in cases the standard diagrams are hard to analyse. This can be the case when testing safety valves on liquid services.
Many system vendors today claim ultrasound to be the perfect solution to work around unclear standard diagram problems as the ultrasound diagrams show a significant diagram reaction where lift and force do not. Ultrasound „appears“ to solve those cases.
Within an extensive benchmark test, METRUS in co operation with Sweden‘s biggest nuclear power station Ringhals AB investigated the approach to use ultrasound as an additional indication for the set point on liquid service safety valves. The result of 55 tests on different valves is that the „Ultrasound point“ is completely depending on the seat condition. This result perfectly first the fact that ultrasound will detect the start to leak point and not the set point (start to lift point).
Only on a new or freshly serviced valve, the set point will be close to the ultrasound point. Even tiniest soiling or improper maintenance will cause the ultrasound to severely „drift away“ from the true set point. Within a typical online safety valve testing scenario where a valve has not bee serviced for a year or more, it is not at all recommended to use ultrasound to identify the set point.
There are still two useful applications for ultrasound within online safety valve testing. A very simple but effective use is to compare the sound level of the valve before and after the test. Comparing those sound levels will indicate if after the test (disk lift) the valve is left in a similar condition to its previous untested state. This could be first information if the valve did properly reseat and seal after it has been lifted. White Paper – Online safety valve testing METRUS Valve Test Bench Exellence
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Knowing why safety valves should be tested online and how this is done in theory, it is most helpful to get an idea of the every day questions you will have to deal with. It will enable you to imagine how online safety valve testing appears in real life.
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Plant operators are often surprised when being asked by online testing engineers whether it is a problem to open a valve. Considering the definition of the set point to be the initial moment when the disk starts to lift the safety valve disk must lift to find that point in a test diagram. It very much depends on the test equipment how long and high the valve will open, but it definitely has to open. geöffnet wird.
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To test a safety valve, it must be possible to lift the disk and measure the force when doing so. If a safety valve has a spindle, it is possible in 95% of all cases to test it online. Some valves might require a simple spindle modification. This depends on the valve and the adapter solution how to „connect“ the test rig. Valves that do not have a spindle at all can not be tested.
Valves installed on extremely dirty fluids like bituminous crude oil should not be tested unless they are equipped with a rupture disk to keep the seat clean. Dirt could prevent the disk from sealing properly and the valve will remain leaking after the test. It the maintenance departments decision whether to agree with slightly lifting a valve or not.
Safety valves installed in EEx areas require special equipment to operate the test rig. If such equipment is available, it is important to check the specific EEx certificate for the approved EEx class and EEx area. As of now and to our best knowledge, there is no online safety valve testing system available that has an EEx approval for the whole machine. The test rigs are approved but the power unit usually has to stay outside the EEx area or have to be protected with special temporary solutions.
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A frequent question to be found in industry is „what is the highest set point and the largest nominal diameter you can test?“. According to the online testing formula of fig. 1 the set pressure is calculated from line pressure, seat area and test force. Those parameters interact. The more line pressure is to be found under the safety vales disk the less force is required to lift (test) it. A final statement can never be made as it depends on seat area, set point and line pressure, whether or not the force capacity of specific equipment will be strong enough to test a valve.
Some suppliers claim that their equipment can test „any“ safety valve. Technically speaking it means raising the line pressure will lead to a remaining test force small enough to be covered by the test equipments force capacity. As online safety valve testing should not affect the plant operation this statement is not very respectable. Usually the line pressure can not be changed significantly just to test a valve.
Thinking about the largest valves, small and medium valves are often forgotten. But those ½“ and 1“ valves built the majority of valves to be found in industry. It is a technical fact, that each measurement task requires suitable sensor ranges. Large valves require large forces and small valves usually small forces. The operational range of online safety valve test equipment is therefore not only defined by its strongest force capacity. It is a question how accurate it can deal with a variety of forces and pressures – small and large.
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Online safety valve testing offers major cost saving potential. In most cases it is cheaper than workshop testing after comparing direct testing costs. This of course requires the test equipment to be efficient in handling and operation.
Safety valves need to be tested at various locations within a plant. It is common to move the test equipment a few times during a test day. Different valve types to be tested require retooling of the test rig. In every day life the equipment will be packed and unpacked several times and it will require adaptation to fit the test rig on the safety valve. Valves will be located on top of tall reactors and on difficult to reach places under or behind pipelines.
The test equipments performance is significantly defined by its mechanical performance – weight and flexibility. The time for unpacking and rigging up as well as for wiring all sensors etc. determines, how fast the individual valve test will be. And in many cases the safety valve requires adjustment. Depending on how long it takes to take the rig off the safety valve, testing and re-testing will be fast and efficient or time consuming.
Within a typical online safety valve test scenario, a valve might need to be adjusted. To adjust a valve, it requires to remove the rig (RR) adjust the valve (VA) and reinstall (RI) the rig before you can carry out the next test to see, if the adjustment was successful. This is done usually two times until a satisfying set pressure is adjusted.
The relation between handling and testing time in average test equipment is about 1/5. It becomes obvious that total test time and efficiency are significantly depending on the test rig performance – weight, portability and speed of set up / dismantling.
As important as an efficient test rig handling is a clearly structured software or control system. The technician will have to deal with a lot of test data and to generate reports. With the TESON® system the technician controls the test completely from the software. The software should support the working process and enable the user to keep an eye on all relevant data without clicking through several hidden menu hierarchies. Data should be stored in databases and generating reports has to be flexible and easy. As most companies use individual test reports as well as overview lists, it is a must to have the software generating all those reports without additional work.
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It may happen that safety valves stay open after the test. To make sure that such event does not affect the plant operation, a concept to remotely close the safety valve, using the test rig is absolutely necessary for safe online safety valve testing.
Testing safety valves online is not at all dangerous as long as the procedure is done properly and the system performs as it should. But there are rare scenarios in which a plant disturbance could appear, especially if a safety valve stays open or gets damaged.
Online safety valve test equipment today is either manually or electronically controlled. Electronic systems support the test process and monitor test limits, taking a lot of responsibility from the technician. TESON® e.g. automatically drives the complete lifting process, monitoring all sensor signals for pre calculated test limits. But electronic systems are sensitive to power black outs as well as to software malfunctions. To deal professionally with those, the online safety valve testing system must have an extensive safety system to guarantee the safety valve will never be blocked open or damaged – whatever might happen.
Manually controlled system are not sensitive to power black outs or system failures. They leave the full control over the test process to the technician. It is up to the technician to control the lifting force and whether or not to overload a valve. Especially with manually controlled system experience plays an important role as the safety issue is basically the human factor. Despite that even manually driven system must have some safety features to respond to hardware or hydraulic malfunction.
Considering the number of parameters to be considered and monitored during an online safety valve test, digital systems are definitely superior as the chance of malfunction and power black outs is considerably small if the systems are well designed and extensively tested. Even after intensive training and years experience it is barely possible for a technician to compete with the reliability and response time of a digital system. Considering the background of online safety valve testing it is a derived requirement of the system to be safely and correctly operated with minimum skill and experience.
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When thinking of a first time investment, it is very often the purchase price that plays an important role. But if you consider the cost saving potential of online safety valve testing or the profit you could make with a service, it becomes obvious that there is more to be considered to get a real view on the cost of ownership.
From the very fist moment employees need to be trained on how to use the equipment. And in case a trained expert leaves the company others will have to substitute him. Besides purchasing good equipment it is valuable to have a comprehensive documentation and training material, making you independent from external trainers, enabling self training. Further more suppliers should be able to offer professional training courses.
Support from your supplier will be crucial for your business. If you are facing time sensitive testing sessions and your equipment gets damaged or you come across complex questions, delays of operations or loosing your customer to the competition can cause severe loss of profit. The system vendor should be able to minimize downtimes with an intelligent support strategy. This includes 24 h availability of technical support, access to most spare parts in local markets and availability of rental equipment to substitute yours during service and repair. The more a supplier is focused on the online safety valve testing business, the better resources he will offer to support your every day work.
Like all measuring equipment, online safety valve testing systems require calibration. Sensors and measuring electronic need calibration (typically every 2-3 years) to harmonize with ISO quality standards. Suppliers must be able to either offer you a calibration service or advice you where to get such service. To minimize transportation costs, the parts and modules that need calibration should be easy to isolate for shipping.
The variety of valves to be found in industry is huge. It is not at all practical to own every type of special equipment that might be required one day to test special applications. Your investment will be significantly lower if you can own core components that cover the majority of your every day online testing needs. Your supplier should offer you special extension for rent to cover the remaining applications once they are required.
We hope this white paper could draw a picture what online safety valve testing is about. If you have any further related question, please feel free to contact METRUS at any time. It will be our pleasure to support and consult you..
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For more information, please visit valve grinding tool.