Pressure grade: for PE different-diameter direct connection with dn<400mm, the maximum nominal pressure is 1.6MPa. For PE different-diameter direct connection with dn≥400mm, the maximum nominal pressure is 1.0MPa.
Executive standards: for PE different-diameter direct connection of Donghong, national standards GB/T13663.2-2005 and GB 15558.2-2005 apply.
Specification and dimension: specification and dimension of PE different-diameter direct connection meet the requirements in the table below