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322-68250000 - Miller Smith 320 Series High Purity Stainless Steel Two-Stage Regulator, CGA 660, 0-100 PSI

Packaging: 1 per ea
$3,122.67/ea $2,052.25/1 per ea only $2,052.25/eaSave 34%

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OVERVIEW

Reliable Control for Specialty Gas Applications

When your work involves specialty gases that are corrosive or require absolute purity, standard brass regulators simply won't cut it. The Miller Smith 320 Series High Purity Two-Stage Regulator is the professional's choice for managing difficult gases with confidence. This specific model, the 322-68-25-00-00, comes equipped with a CGA 660 connection and is rated for delivery pressures up to 100 PSI. Whether you are setting up a process analyzer, managing laser gases, or working in a chemical lab, this regulator provides the consistency and safety you need.

Built for the Toughest Gases

Corrosion is the enemy of precision equipment. That is why this regulator is built from 316 Stainless Steel. Unlike brass, which can react with certain gases and contaminate your process or fail prematurely, stainless steel stands up to aggressive chemical properties. The internal seat is also filtered to prevent debris from causing leaks or pressure creep. If you are working with gases that demand a CGA 660 fitting, you likely know the risks involved; this regulator mitigates those risks with a robust metal-to-metal seal design that ensures what stays in the regulator belongs there.

Consistent Pressure, Every Time

One of the biggest headaches in gas delivery is the "droop" or pressure spike that happens as a tank gets low. Because this is a two-stage regulator, it steps the pressure down twice before it reaches your equipment. This means that even if your tank pressure swings from 3500 PSI down to 500 PSI, your outlet pressure stays rock solid at your set point. You won't have to constantly adjust the knob to maintain flow.

Safety Features You Can Trust

Miller Smith has designed this unit with the operator's safety in mind. It features large, 2-1/2 inch gauges that are easy to read from a distance, so you always know your system status. More importantly, it includes captured vent ports. If a diaphragm were ever to fail, the gas wouldn't just vent into the room; the threaded ports allow you to pipe any escaping gas to a safe exhaust system. This feature is essential for maintaining a safe workspace when dealing with hazardous or toxic fumes.

Additional Information
Brand:Smith Equipment
Item:Regulator
CGA Fitting:CGA 660
Max Inlet:3500 PSI
Max Outlet:100 PSI
Used On Which Gas:Corrosive Gas, Specialty Gas
Packaging Description:1 per each
Body Material:316 Stainless Steel
Diaphragm Material:Convoluted Stainless Steel
Seat Material:PCTFE
Stages:Two Stage
Series:320 Series Silverline
Outlet Connection:1/8" Tube Stainless Steel Needle Valve
Gauge Size:2-1/2 inch

INCLUDED

  • Miller Smith 320 Series Two-Stage Regulator
  • 2-1/2" Inlet and Outlet Gauges
  • Captured Vent Port (1/16" FNPT)
  • Instruction Manual

APPLICATIONS

  • Laboratory Gas Chromatography
  • Emission Monitoring Systems
  • Corrosive Gas Handling (e.g., Ammonia, Chlorine compounds compatible with SS)
  • Semiconductor Manufacturing
  • Research and Development Facilities
  • Laser Gas Regulation

FAQ

A two-stage regulator reduces the cylinder pressure in two steps, providing a constant delivery pressure regardless of changes in the inlet pressure (such as when the cylinder empties). A single-stage regulator's delivery pressure may fluctuate as the cylinder pressure drops.

CGA 660 is typically used for corrosive gases. Always verify the specific gas compatibility with 316 Stainless Steel and PCTFE materials before use.

Stainless steel is required for corrosive gases that would attack brass, and for high-purity applications where the off-gassing or contamination from standard materials is unacceptable.

The captured vent port (1/16" FNPT) allows the user to connect tubing to the regulator bonnet. In the event of a diaphragm failure, hazardous gases can be vented safely to a fume hood or scrubber rather than into the workspace.

Yes, the Miller Smith 320 Series is designed to withstand internal vacuums, making it suitable for purge cycles during cylinder changes to ensure system purity.

This regulator is rated for a maximum inlet pressure of 3500 PSI.

Yes, it is covered by the Miller True Blue Warranty. Please refer to the specific warranty documentation for duration and coverage details.

The wetted parts consist of 316 Stainless Steel and PCTFE, ensuring high corrosion resistance and purity.
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