Precautions for the use of socket welded tees: The size of the connecting pipe for socket fittings can be divided into two types: A series (I series) connecting pipe size and B series (II series) connecting pipe size, or in other words, English connecting pipe size (A series size) and metric connecting pipe size (B series size). Also, some standards directly specify that the connecting pipe size is A series, including ASMEB16.11 and SH3410 standards. Some standards have both sizes, and during production and processing, it is necessary to implement the connecting pipe size. These standards include GB/T14383-2008, GB/T14383-93, HG21634, etc. If the user does not provide which connecting pipe size to choose, it is generally assumed to be the A series. However, it should be noted that the HG21634 standard, if it specifies that the connecting pipe is A, then the B series connecting pipe size should be selected

Socket welded tees are mainly suitable for petrochemical, pharmaceutical and health, power, aerospace, fire protection, metallurgy, shipbuilding, gas, nuclear power, and environmental protection, which require high pressure resistance and size