H1400-20 - Smith H1400-20 Fixed Flow Orifice Adaptor 20 SCFH

Precision Gas Flow Control for Industrial Compliance

The Smith Equipment H1400-20 Fixed Flow Adaptor is an engineered solution designed to bring rigorous process control to shielding gas delivery systems. In high-volume manufacturing and code-quality welding environments, consistency is paramount. Variable flow rates caused by operator adjustment can lead to porosity, oxidation, or excessive gas waste. The H1400-20 eliminates these variables by utilizing a precision-drilled .026-inch orifice that meters gas flow to exactly 20 SCFH when supplied with a constant 30 PSIG inlet pressure.

This device is constructed from high-quality brass, ensuring compatibility with inert shielding gases such as Argon, Helium, and Argon/CO2 mixtures. It is designed to interface seamlessly with existing gas distribution infrastructure. The unit features a standard 5/8"-18 UNF female inlet thread, allowing it to attach directly to the outlet of a standard flow gauge regulator or a pipeline drop station. The outlet side presents a 5/8"-18 UNF male thread, accommodating standard welding gas hoses without the need for additional fittings.

A critical feature of the H1400 series is the integrated inlet filter. Gas distribution systems, particularly in older facilities, can carry particulate matter that would otherwise clog a precision orifice. The sintered filter screen captures debris before it reaches the flow-restricting element, ensuring long-term reliability and consistent flow performance. By standardizing gas delivery to 20 SCFH, facility managers can accurately predict gas usage, reduce overhead costs, and ensure that every weld station operates within the parameters of the established Welding Procedure Specification (WPS).

The H1400-20 is not merely an accessory; it is a quality assurance tool. By removing the variable of flow adjustment from the welder's daily setup, it enforces a standardized operating condition that promotes repeatability. Whether used in automated robotic cells or manual welding stations, this fixed-flow adaptor provides the assurance that the shielding gas envelope is being maintained at the optimal rate for the application.