Union Cross

A union cross is a type of pipe or tube fitting that combines the features of a union with the configuration of a cross. This fitting is designed to allow for easy disassembly and reassembly of piping or tubing systems while providing connections in four directions, creating a cross-shaped intersection. Union crosses are used in various applications, including plumbing, HVAC, and fluid processing systems.

Connects Fractional Tube

Components

Nut: Like other union fittings, a union cross includes threaded nuts to secure the fitting.
Body or Coupling: The body of the union cross contains the internal components necessary for creating secure and leak-proof connections between pipes or tubes.
Cross Connection: The cross portion of the fitting allows for links in four directions—typically forming a right-angle intersection.
O-Ring or Gasket: To ensure a tight seal between the connected pipes or tubes, a union cross may include an O-ring or gasket.

Installation

Cutting and Preparing Pipes: Cut the pipes to the desired lengths and prepare the ends for connection.
Assembling the Union Cross: Slide the nuts over the ends of the pipes, insert the tubes into the appropriate openings on the Union Cross, and then thread the nuts onto the fittings.
Tightening: Use proper tools to tighten the nuts securely, ensuring a leak-proof and stable connection.

Considerations

Material Compatibility: Ensure that the materials of the union cross are compatible with the substances flowing through the piping system.
Application: Consider factors such as pressure, temperature, and the nature of the fluid or gas when selecting a union cross for a specific application.

Types

Equal Union Cross: In an equal union cross, all four cross openings are the same size.
Reducing Union Cross: A reducing union cross has different sizes for the four openings, allowing for connections of varying diameters.

Connects Metric Tube

Note 👍 Union crosses are used when a piping system requires connections in four directions, providing a versatile solution for branching or intersecting pipelines.