A cross is a connector used for four-way diversion in a pipeline system, mainly including straight cross, oblique cross, reducing cross and other structural types. According to the gas fire extinguishing system design guidelines issued in 2024, the cross should be used with caution in horizontal diversion pipelines. As of 2025, manufacturers have developed new structures such as double-clip cross and angle-adjustable cross, covering the production process of various materials such as carbon steel and stainless steel.
This pipe fitting is widely used in petrochemical, precision instruments and other fields, and is used as a core framework component in the mass spectrometer pre-stage system to optimize gas transmission.