H1400-40 - Smith H1400 Series 40 SCFH Fixed Flow Orifice Adaptor

Set It and Forget It: Consistent Shielding Gas Flow

Tired of guessing your flow rate or finding that someone has messed with your regulator settings? The Smith H1400-40 Fixed-Flow Adaptor is the simple solution to keeping your shielding gas exactly where you need it. Calibrated to deliver a steady 40 SCFH, this adaptor takes the guesswork out of your setup. Whether you are running a MIG torch or a TIG rig, 40 SCFH provides robust coverage for many standard applications, ensuring your weld pool stays protected from the atmosphere without wasting expensive gas.

Installation is a breeze. If you are running off a pipeline system or a standard cylinder regulator, just ensure your delivery pressure is set to 30 PSIG, screw this adaptor in, and you are good to go. It fits standard 5/8"-18 outlets and 1/4" NPT fittings, so it works with most shop setups. Plus, it has a built-in filter to catch any dirt or grit coming down the line, keeping the flow smooth and your welds clean.

Using a fixed-flow adaptor like the H1400-40 is also a great way to save money and hassle. Adjustable flowmeters can be sensitive and easily knocked out of adjustment, leading to gas surges or insufficient coverage. With this solid brass adaptor, you get the same flow every time you pull the trigger. It’s perfect for production shops where consistency is key, or for any welder who wants one less variable to worry about while laying beads.