Socket three pass application field editor

Mainly applicable to petroleum, chemical, pharmaceutical, health, electricity, aerospace, military, fire, metallurgy, shipbuilding, gas, nuclear power, environmental protection and other requirements, high pressure, size, precision and other departments and fields.

Insert three pass notes for use

The over size inserted pipe is divided into two types, namely A series (Series I) over size and B series (Series II) over size or is the imperial takeover (A series size) and metric over (B series size). Also, some standards specify the size of the takeover A series. These standards are ASME, B16.11, SH3410 standards. Some standard two sizes are in production need to implement over size, these standards are GB/T14383-2008, GB/T14383-93, HG21634 and so on, if Party A fails to provide the choice of what kind of over size, usually the default for the A series. However, we should pay attention to the standard HG21634, if it gives the takeover is A, then choose the B series take over size.