Threaded Cross is a type of pipe fitting used in plumbing and industrial piping systems. It is designed to connect four pipes at 90-degree angles, forming a cross shape. Unlike butt weld or socket weld fittings, threaded crosses use threaded connections, which means the pipes are screwed into the fitting rather than welded.
Threaded Cross is a pipe fitting with four threaded openings arranged at 90-degree angles, used to connect four pipes in a piping system. It allows fluid or gas to flow in four directions and is installed by screwing threaded pipes into its ends.
Made from materials like stainless steel, carbon steel, or brass, it is commonly used in low to medium-pressure systems such as plumbing, gas distribution, and irrigation.
Its key advantages include easy installation, reusability, and versatility. However, it is not suitable for high-pressure or high-temperature applications due to potential leak risks at threaded joints.
Type | Characteristics | Applications |
Carbon Steel Threaded Cross | Strong and durable, suitable for high-pressure applications. | Industrial piping, oil and gas, chemical processing. |
Stainless Steel Threaded Cross | Corrosion-resistant, suitable for environments with moisture or chemicals. | Food processing, pharmaceuticals, marine environments. |
Brass Threaded Cross | Corrosion-resistant, suitable for low-pressure applications. | Residential plumbing, irrigation systems. |
Copper Threaded Cross | Excellent corrosion resistance, good thermal conductivity. | Plumbing systems, HVAC systems. |
NPT Threaded Cross | Tapered threads designed to form a tight seal. | General plumbing, industrial applications. |
BSPT Threaded Cross | Tapered threads used in British and European standards. | European plumbing, industrial applications. |
BSP Threaded Cross | Parallel threads used in British and European standards. | European plumbing, industrial applications. |
Small Diameter Threaded Cross | Typically used for pipes up to 2 inches in diameter. | Residential plumbing, HVAC systems. |
Large Diameter Threaded Cross | Used for larger pipes, though less common than small diameter. | Industrial applications. |
Residential Threaded Cross | Suitable for low-pressure applications. | Home plumbing systems. |
Industrial Threaded Cross | Suitable for high-pressure applications. | Oil and gas, chemical processing. |
ASME B1.20.1 Threaded Cross | Follows the American standard for pipe threads. | General plumbing and industrial applications. |
DIN 2999 Threaded Cross | Follows the German standard for threaded pipe fittings. | European plumbing and industrial applications. |
ISO 7 Threaded Cross | Follows the international standard for pipe threads. |
Design: It has four threaded openings, one on each end, forming a cross shape.
Material: Typically made from materials like stainless steel, carbon steel, brass, or other alloys, depending on the application.
Thread Type: Threads can be NPT (National Pipe Thread), BSP (British Standard Pipe), or other standards, ensuring compatibility with threaded pipes.
Applications: Commonly used in low to medium-pressure systems where disassembly or maintenance is required.
Standard Organization | Standard Number | Description | Scope |
ASME | ASME B1.20.1 | Pipe Threads, General Purpose (Inch) | Specifies the dimensions and requirements for general-purpose pipe threads. |
ASTM | ASTM A105 | Carbon Steel Forgings for Piping Applications | Carbon steel fittings for high-pressure applications. |
ASTM | ASTM A182 | Forgings for General Purpose Use | Forgings for piping components, including threaded fittings. |
DIN | DIN 2999 | Threaded pipe fittings | Specifies threaded pipe fittings for industrial applications. |
ISO | ISO 7 | Pipe threads where pressure-tight joints are made on the threads | International standard for pipe threads, including threaded fittings. |
GB/T | GB/T 7306 | Pipe threads for general purposes | Chinese standard for general-purpose pipe threads. |
JIS | JIS B2311 | Specification for steel pipe fittings | |
Ease of Installation: Pipes can be easily screwed into the fitting without welding.
Reusability: Can be disassembled and reused, making it ideal for temporary or modular systems.
Versatility: Suitable for a wide range of applications, including plumbing, gas, and low-pressure industrial systems.
Plumbing Systems: Connects water supply lines in residential or commercial buildings.
Gas Distribution: Used in low-pressure gas lines for distribution.
Industrial Systems: Suitable for low-pressure fluid transport in machinery or equipment.
Fire Protection Systems: Distributes water in fire sprinkler systems.
Irrigation Systems: Connects pipes in agricultural or landscape irrigation.