614-03090000 - Miller Smith Silverline High Purity Regulator, 0-500 PSI, CGA 580, 1/4 Tube Outlet

Reliable Gas Delivery for Critical Welds

When your welding or fabrication project demands absolute cleanliness and precision, the Miller Smith Silverline 614-03-09-00-00 Regulator is the professional's choice. While standard regulators are fine for general MIG or TIG work, high-stakes applications—such as aerospace welding, titanium fabrication, or pressure testing—require equipment that guarantees zero contamination. This regulator is built with the legendary quality of Smith Equipment (now Miller), featuring a robust nickel-plated brass body machined from bar stock, not forged, ensuring it stands up to the toughest shop environments.

Why a Stainless Steel Diaphragm Matters

In standard regulators, rubber diaphragms can fluctuate with temperature changes and eventually dry rot. This Silverline model uses a stainless steel diaphragm, which provides two major benefits for the serious fabricator: unmatched pressure stability and zero contamination. The metal-to-metal seal ensures that no air or moisture seeps into your shielding gas line, which is critical when working with sensitive alloys. The single-stage design is tuned for accuracy, delivering a consistent pressure output up to 500 PSI, making it suitable not just for welding shielding gas, but also for high-pressure purging and leak testing applications.

Built for the Pro

This unit comes ready for action with a CGA 580 connection, fitting standard tanks for Argon, Nitrogen, and Helium. The outlet is equipped with a 1/4" tube fitting and a high-quality packless diaphragm valve, giving you positive shut-off control without the risk of leaks associated with traditional packed valves. The large 2-1/2" gauge is easy to read at a glance, and the bonnet is designed to be panel-mounted if you are building a custom gas manifold or test bench. Whether you are purging a stainless pipe run or setting up a lab-grade test station, this Miller Smith regulator delivers the performance you can trust.