Crosses

Valco crosses are precision fluidic connectors designed to join four tubing lines of the same outer diameter, enabling balanced flow distribution or multi-line routing in chromatography and analytical systems. These crosses help maintain consistent flow paths while supporting complex fluidic configurations.

Standard Valco crosses are manufactured from 300 series stainless steel for strength, durability, and chemical compatibility. Additional material options—including Hastelloy C, gold-plated stainless steel, and titanium—are available for aggressive solvents, inert applications, or specialized operating environments.

TUBING OD BORE CROSSES
1/16"0.25ZX1C
1/16"0.50ZX1M
1/16"0.75ZX1
1/16"1.00ZX1L
1/16"0.50ZX1M
1/16"0.25ZX1C
1/8"0.75ZX2
1/8"2.00ZX2L
Key Definitions â–¶
Cross Fitting
A fluidic connector that joins four tubing lines of the same outer diameter, enabling multi-directional flow distribution in chromatography systems.
Tubing OD
The outer diameter of tubing. Valco crosses are selected based on matching tubing OD to ensure proper compression sealing.
Flow Distribution
The routing or splitting of fluid across four ports while maintaining consistent pressure and minimal system volume.
300 Series Stainless Steel
A corrosion-resistant stainless steel commonly used in chromatography fittings for strength, durability, and chemical compatibility.
Compression Connection
A sealing method that uses nuts and ferrules to compress onto tubing, creating a leak-resistant interface without permanently deforming the tubing.
Material Options
Valco crosses are available in 300 series stainless steel, Hastelloy C, gold-plated stainless, and titanium for aggressive or specialized applications.
Frequently Asked Questions â–¶
What are Valco crosses used for?
Valco crosses are used to connect four tubing lines of the same outer diameter, enabling multi-directional flow distribution in chromatography and analytical systems.
Do all four ports on a Valco cross use the same tubing size?
Yes. Standard Valco crosses are designed for four lines of the same tubing OD to ensure consistent compression sealing and balanced flow paths.
What materials are available for Valco crosses?
Standard crosses are manufactured from 300 series stainless steel. Optional materials include Hastelloy C, gold-plated stainless, and titanium for aggressive solvents or specialized applications.
Are Valco crosses suitable for HPLC and UHPLC pressures?
Yes. Valco crosses are engineered for high-pressure chromatography environments and are commonly used in HPLC and UHPLC systems when properly installed.
Can Valco crosses be reused?
The fitting body may be reused, but nuts and ferrules should be inspected for wear. Replacing deformed ferrules is recommended to maintain reliable sealing performance.