What do Q47Y-150LBC DN200 RF STL/STL mean in digits and in letters?

2016-01-24View Original

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What do Q47Y-150LBC DN200 RF STL/STL mean in digits and in letters?

Reply #22016-01-24

Engineering pressure 150 LBC, nominal diameter DN200, flange type RF (raised face)

Reply #32016-01-24

What do Q47Y-150LBC DN200 RF STL/STL mean in terms of numbers and letters? Q stands for ball valve, 4 refers to flange connection, 7 indicates a fixed ball, Y means the valve seat sealing surface is made of cemented carbide, 150LB denotes pressure class 150, C represents carbon steel, and DN200 refers to a flange type with a raised face. The valve sealing surface is plated with STL alloy. It is recommended to check the specification for valve numbering. . .

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