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622-40090000 - Miller Smith 620 Series Silverline High Purity Two-Stage Regulator, CGA 580, 0-100 PSI

Packaging: 1 per ea
$1,393.16/ea $915.60/1 per ea only $915.60/eaSave 34%

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OVERVIEW

Unwavering Consistency for Critical Welding and Testing

For professional welders and fabricators, consistency is the key to quality, and the Miller Smith 622-40-09-00-00 Silverline Regulator delivers exactly that. This two-stage regulator is built to solve the common problem of 'pressure creep' found in standard regulators. When you are performing critical TIG welding, back-purging stainless steel piping with Argon, or pressure-testing AC systems with Nitrogen, you need the pressure to stay exactly where you set it. With its two-stage architecture, this regulator compensates for the dropping pressure in your tank, providing a rock-steady 0-100 PSI output from the moment you crack the valve until the cylinder is empty. This means no more stopping to readjust your settings mid-job and no unexpected surges that could blow out a weld puddle or damage sensitive downstream equipment.

Durability is woven into every aspect of this Miller Smith unit. The body is crafted from nickel-plated brass bar stock, making it tough enough to withstand the rigors of a busy shop environment while resisting corrosion. The CGA 580 connection makes it universally compatible with standard inert gas cylinders, including Argon, Nitrogen, and Helium. One of the standout features for welders is the stainless steel diaphragm. While rubber diaphragms can degrade over time or become brittle in cold shop environments, the stainless steel diaphragm offers superior longevity and sensitivity. It also ensures that no rubber particles or impurities are introduced into your shield gas, which is vital for meeting stringent code requirements in aerospace or food-grade welding.

The regulator features large, easy-to-read 2-1/2" single scale gauges that allow you to monitor tank levels and delivery pressure at a glance. The 100 PSI delivery range is versatile enough to handle everything from low-pressure shielding gas applications to higher-pressure pneumatic tool operation or leak testing. Additionally, the included needle valve on the 1/4" FNPT outlet gives you precise control over the flow rate, allowing for fine-tuning right at the regulator. When your work demands precision and your equipment needs to last, the Miller Smith Silverline 620 series is the professional's choice for gas regulation.

Additional Information
Brand:Miller
Cga Fitting:CGA 580
Item:Regulator
Max Inlet:3500 PSI
Max Outlet:100 PSI
Used On Which Gas:Argon or Nitrogen
Series:620 Silverline
Diaphragm Material:Stainless Steel
Body Material:Nickel Plated Brass
Stages:Two Stage
Outlet Connection:1/4" FNPT with Needle Valve
Gauge Size:2-1/2 inch
Gas Service:Inert Gas, Specialty Gas
Packaging Description:1 per ea

INCLUDED

  • Miller Smith 622 Silverline Two-Stage Regulator
  • 1/4" FNPT Outlet Needle Valve
  • 2-1/2" Single Scale Gauges
  • Owner's Manual

APPLICATIONS

  • High-purity analytical instrumentation
  • Gas chromatography carrier gas control
  • TIG/MIG welding shield gas delivery
  • Back-purging for stainless steel and titanium welding
  • Laboratory research and development
  • Laser cutter assist gas delivery
  • HVAC/R nitrogen pressure testing
  • Calibration gas control

FAQ

A two-stage regulator provides a constant delivery pressure regardless of changes in the inlet (cylinder) pressure. As the tank empties, a single-stage regulator's output pressure can rise, but a two-stage regulator compensates for this, ensuring steady flow.

The CGA 580 fitting is the standard connection for inert gases, including Argon, Nitrogen, and Helium. It is not compatible with flammable or oxidizing gases.

A stainless steel diaphragm is used to prevent contamination of the gas stream. Unlike rubber or neoprene, stainless steel does not outgas or absorb impurities, making it ideal for high-purity applications.

This regulator is rated for a maximum inlet pressure of 3500 PSI, allowing it to be used with standard and high-pressure cylinders.

No, this regulator comes with a CGA 580 connection for inert gases. Oxygen cylinders use a CGA 540 connection. Never use an adapter to force a connection for a different gas service.

No, this is a pressure regulator with a delivery range of 0-100 PSI. If you need to measure flow in CFH (Cubic Feet per Hour) for welding, you would typically attach a separate flowmeter or use a flowgauge regulator.

The regulator features a 1/4" FNPT outlet connection equipped with a needle valve for flow control.

Yes, the bonnet features a captured 1/16" FNPT vent. This allows for the attachment of tubing to vent hazardous gases away safely in the event of a diaphragm failure, although this is less critical for inert gases.
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