Instrumentation Tube Fittings
Double Ferrule Union Cross
Double ferrule union cross for connecting four equal-size tubes in a cross configuration. Available in fractional and metric tube sizes for instrumentation and industrial fluid systems.
Specifications
- Series
- UC series
- Connection
- Four Double Ferrule Tube Ends
- Tube Sizes
- Fractional & Metric
- Configuration
- Equal Union Cross
- Standard Material
- 316 Stainless Steel
- Special Materials
- Monel 400, Inconel 625, Super Duplex 2507 & Other Special Alloys
Overview
The UC Series Double Ferrule Union Cross provides a four-way connection between tubes of the same outside diameter. Double ferrule tube connections on all four ends provide mechanical gripping and sealing without requiring threaded intermediate connections.
Fractional and metric tube sizes are available for instrumentation, process control, sampling, testing and other industrial fluid systems.
Key Features
- Four double ferrule tube connections
- Equal-size cross configuration
- Fractional and metric tube-size options
- No pipe-thread connections required between the four tube ends
- 316 stainless steel as the standard material
- Special-alloy options for project requirements
- Multiple size options for instrumentation and industrial fluid systems
Engineering Specifications
Item | Specification |
|---|---|
Product Type | Double Ferrule Union Cross |
Series | UC Series |
Connection | Four Double Ferrule Tube Ends |
Configuration | Equal Union Cross |
Tube Sizes | Fractional and Metric |
Standard Material | 316 Stainless Steel |
Special Materials | Monel 400, Inconel 625, Super Duplex 2507 and other special alloys |
Pressure Rating | Based on tubing, material and operating temperature |
Dimensions | Configuration-specific |
Tube Size Options
UC Series Union Crosses are available for fractional and metric tubing. Each standard UC configuration connects four tubes of the same outside diameter in an equal cross arrangement.
Select the required tube O.D. in fractional or metric sizing.
Size & Configuration Information
Dimensions and ordering numbers vary by tube O.D. Configuration-specific dimensional information can be provided for quotation and technical review.
Materials
316 stainless steel is the standard material for this series.
For corrosive or special-service requirements, Monel 400, Inconel 625, Super Duplex 2507 and other special alloys are available for applicable project configurations.
Specify the required material grade together with the tube size and quantity when requesting a quotation.
Pressure & Temperature Considerations
Allowable working pressure depends on the complete tube-fitting system rather than the Union Cross body alone. Relevant factors include tubing material, tube O.D., wall thickness and operating temperature.
The pressure capability of the lowest-rated component in the assembled system should be considered when determining allowable working pressure.
For pressure- or temperature-sensitive applications, provide the tubing specification, material, operating pressure and operating temperature for review.
Typical Applications
Double Ferrule Union Crosses are commonly used for:
- Instrument and analyzer tubing
- Multi-branch process-control lines
- Measurement and monitoring systems
- Hydraulic and industrial fluid systems
- Four-way tube connections in equipment and piping assemblies
Selection & Ordering Information
To specify the required Union Cross, provide:
- Tube O.D. — fractional or metric
- Material
- Operating pressure and temperature
- Quantity
Existing part numbers, drawings, specifications or product references can also be used for product matching and quotation review.
