Four way connector, other names: fork, cross connector, cross connector. A positive four-way connector is used to connect four pipes with the same nominal diameter that intersect vertically. The positive four-way can be divided into stainless steel positive four-way, alloy steel positive four-way, carbon steel positive four-way, etc. according to the material. It is often made of the same material as the pipe. There are elbows (elbow pipes), flanges, tees, tees (cross heads), and reducers (large and small heads), etc. Bends are used for turning pipes; Flanges are parts used to connect pipes to each other, connected to pipe ends, and tees are used where three pipes converge; A positive four-way junction is used where four pipes converge. The positive four-way connector has the characteristics of easy connection and simple operation.

Zhengsi Tong is widely used in chemical, petroleum, metallurgical, gas, power, shipbuilding, air conditioning, automotive, construction, thermal pipelines, vacuum equipment, and various industrial pipelines.