1502 type union is the most widely used, can be connected by pipeline thread and welding, divided into standard and sour gas service, the latest introduction of Fig5"6" type, equipped with replaceable elastic nitrile rubber sealing ring, solid wall thickness design for high pressure system.

Recommended for cementing, fracturing, acidizing, testing and plugging and killing pipelines. It can also be used for pressure-free sealing connections with butt welding Sch XXH.

Note: The actual parameters are subject to the latest atlas