Union Cross

Union cross (cross), four-way connection or cross connections

The cross union is used to connect 4 tubes or 4 transmission lines together. This piece of precision instrument fittings is designed without leakage and directly for industrial applications in process sites. Union Cross is recommended when you need a leak-free connection for instrumentation, process and analyzer connections. This tube connector is produced in a wide range of tools and sizes in Alborz Part Jahan company. In the construction of Union Cross, various materials are used, including stainless steel or corrosion-resistant materials with the highest quality standards in this collection. Stay with us so that we can familiarize you with the details of this piece of high pressure fittings.

Types of cross fitting or intersection connection based on pressure class

The junction can be classified according to the pressure class. Union Cross pressure class ranges from 10 psi to 9000 psi. The higher the pressure class, the higher the tolerable pressure for the intersection. This category of union crosses is mostly used for oil and gas, food and pharmaceutical industries. Another point is that the lower the pressure class stated above, the lower the pressure tolerance of the Union Cross.

Types of cross union based on the material

The material or alloy of the cross union has an effective role in the resistance of this instrument connection. In general, the components of the four-way connection are as follows:

Union cross made of stainless steel;

This material is made by adding amounts of materials such as molybdenum to steel and reducing the amount of carbon in it. Stainless steel is a complementary alloy to steel.

Brass square;

This type of alloy is used for parts of industries that have oxidizing fluids (such as water). This alloy consists of copper and zinc metals, which has high resistance to moisture and lack of oxidation. Union cross brass is also widely used in making industrial parts due to its reasonable price compared to other alloys.

Crossroads made of Monel or Union Cross copper and nickel alloys

The high resistance of this alloy to heat makes it a super alloy. The mentioned alloy is mostly used in the oil and gas, petrochemical, aerospace industries, and sectors related to the manufacture of military equipment or aircraft industries.

Crossroads made of chromium, nickel and molybdenum alloy

This alloy, like the Monel alloy, is a type of superalloy in which some cobalt and tungsten are used. This action increases the thermal tolerance of Union Cross.

Cross-unions made of perfluoroalkoxy alkanes

It is a type of reinforced polymer and is used in some industries where it is not possible to use Teflon material.

Crossroads made of Teflon

It is used in various industries as a type of heat-resistant and non-stick coating. In some cases, alloy crosses are used as an internal coating material.

Crossroads made of steel or carbon steel

One of the iron metal alloys is steel or carbon steel, which is used in various industries due to its high resistance to heat, corrosion and pressure. These four ways are used in all industries except for the cases where the fluid inside the pipe is corrosive.