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Each member from our significant effectiveness gross sales team values customersâ wants and enterprise communication for China Float Ball Valve, Stainless Steel Valve£¬ball valve 316, We have established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Please feel free to contact us for more details.
Body pressure detection
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ANSI B 16.34 Section 7.1 |
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|
Valve size NPS |
Test pressure  |
Test time sce |
|
DN50¡à |
1:5 times the 100¡ãC F |
15second |
|
DN65-200 |
Rating of AN ST Class |
60second |
|
DN250¡à |
Max. operating pressure |
180second |
|
Detect pressure than the maximum working pressure  valve 1.5 times higher (100F) |
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1.Seal hydrostatic test:The pressure should be more 1.1 times than working pressare by seal hydrastatic test.
|
ANSI B 16.34 Section 7.2 |
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|
Valve size NPS |
Test pressure  |
Test time sce |
|
DN50¡à |
1:5 times the 100¡ãC F |
15second |
|
DN65-200 |
Rating of AN ST Class |
30second |
|
DN250¡à |
Max. operating pressure |
60second |
|
Detect pressure than the maximum working pressure  valve 1.5 times higher (100F) |
||
2.Seal air test: Seal air leakage test is based on 80psig (6kgf/cm^ nin-actiue gas or full filled with air, after dose the valve, then check it is leakage or not by one side  of the valve.