Valve Testing
Sealing performance is an important indicator of the valve and is an intuitive data to identify the quality of the valve. Any leakage that does not meet technical requirements can lead to loss of resources, pollution of the environment and, in serious cases, safety accidents, making it important to test the sealing performance of valves.
It is also necessary for industrial valves to include performance testing in their maintenance programme; for gate valves, globe valves, check valves, ball valves, butterfly valves, regulating valves, safety valves, breathing valves, Valveman's professional team can provide those below.
◇Open pressure test
◇ Shell strength tests
◇ ◇Shell sealability test
◇ Valve seat seal test
◇ Upper seal test
◇Torque test
◇Gate strength test
Testing standards:
API 598 Inspection and testing of valves
ISO 5208 Industrial valves Metal valve pressure testing
GB/T 13927 Industrial valves Pressure testing
GB/T 26480 Inspection and testing of valves
ANSI FCI70-2 Control valve seat leakage
GB/T 12241 General requirements for safety valves
GB/T 12242 Pressure relief device Performance test specification
GB/T 12243 Spring loaded direct load safety valves
TSG ZF001 Safety Valve Safety Technical Supervision Regulations
BS EN 12266-1 Industrial valves Metal valve pressure testing
BS EN 12266-2 Industrial valves Metal valve pressure testing
Microleakage Testing
Microleakage is defined as any physical form of any chemical or mixture of chemicals, the unintended or concealed leakage of which from equipment in industrial premises occurs.
Valves have evolved from meeting the basic conditions of limiting internal leakage, external leakage and handling flexibility, to the need to meet the requirements of valves with minor emissions to the external environment.
As the global green sustainability strategy continues to advance, environmental protection has become an ongoing concern and low leakage valves are now the first choice for major oil companies.
Valveman's professional team can provide test methods below,
◇ vacuum process
◇Inhalation method
Testing Sandards:
ISO 15848-1 Industrial valves - low leakage detection, testing, certification (type testing)
ISO 15848-2 Industrial valves - low leakage testing, testing, certification (product testing)
TA-LUFT Technical guidance for air quality control
API 624 Low leakage type test for packing seal lift rod valves
API 641 Low leakage type testing of ¼ turn valves
API622 Valve packing low leakage type test
EPA Method 21 US EPA - VOC Leakage Determination
Fire resistance test
Valves in the use of flammable and explosive substances in the media, there is a risk of fire or explosion, the valve requires a special design so that the valve after a certain period of fire still has a certain sealing performance and operational performance.
Valveman professional team can provide valve fire resistance test.
Testing standards:
ISO 10497 Fire resistance test requirements for valve testing
API 607 Fire test for 1/4 turn non-metallic seat valves
API 6FA Technical specifications for fire resistance testing of valves
API 6FD Technical specifications for fire resistance testing of check valves
JB/T 6899 Fire resistance testing of valves
Testing process:

Fluidity testing
The flow characteristics and resistance characteristics test of valves is an important parameter to identify the technical level of the product and ensure the quality of the product, and is an important step to ensure the normal work of the pipeline flow control system. Applicable to the determination of gate valves, globe valves, check valves, ball valves, butterfly valves, regulating valves, etc. Valveman's professional team can provide testing services for.
Testing Standards:
BS EN1267 Valves - Use water as a medium to measure flow resistance
GB/T 30832 Valves Flow coefficient and flow resistance coefficient test methods
Valve Low Temperature Testing
The valve cryogenic test is a simulation of the valve's low or ultra-low temperature working conditions, the valve will be placed in the low temperature environment to check its internal or external leakage. It is mainly applied to safety valves, gate valves, globe valves, check valves, ball valves, butterfly valves, regulating valves, etc. in LNG, LPG, LEG, air separation and other cryogenic industries. Valveman's professional team can provide testing services for.
Testing Standards:
GB/T 26480 Valve inspection and testing
GB/T 24925 Technical conditions for low temperature valves
SHELL SPE 77/200 Cryogenic and ultra-low temperature valves
BS6364 Ultra low temperature valves
Vacuum Testing
Vacuum valvesare vacuum components used in vacuum systems to isolate airflow, regulate airflow flow and distribute airflow, and they occupy an important position in both simple and complex vacuum systems. The size of their leakage rate often becomes the shortcoming of a vacuum system to reach a certain vacuum level. Valve vacuum testing is important and Valveman's professional team can provide testing services for.
Test standard:
GB/T 32218 Leakage test methods for vacuum systems in vacuum technology
GB/T34878 Vacuum technology Valves Leak testing
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