New Fashion Design for China Dn65 AISI304 Sanitation Stainless Steel Butt-Welded-Thread Butterfly Valve with Blue Ball

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All-weldsd ball valve using a long-tsrm reliabls opsration, no maintenance, easy to install, especially DN300 bslow the valvs installation becomes more convenient, not only �reduces the cost of construction, but also saves time.

Fully welded ball valve is widely used in city gas, urban heating, petrochemical, shipbuilding, steel, regulator station on all kinds of pipeline equipment, power plants and so on.

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Body pressure detection

ANSI B 16.34 Section 7.1
Valve size NPS	Test pressure Â	Test time sce
DN50Â¡Ã	1:5 times the 100Â¡Ã£C F	15second
DN65-200	Rating of AN ST Class	60second
DN250Â¡Ã	Max. operating pressure	180second
Detect pressure than the maximum working pressure Â valve 1.5 times higher (100F)

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
Valve size NPS	Test pressure Â	Test time sce
DN50Â¡Ã	1:5 times the 100Â¡Ã£C F	15second
DN65-200	Rating of AN ST Class	30second
DN250Â¡Ã	Max. operating pressure	60second
Detect pressure than the maximum working pressure Â 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 Â of the valve.