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323-00310000 - Miller Smith 320 Series High Purity SS Two-Stage Regulator, CGA 705, 250 PSI

Packaging: 1 per ea
$2,889.13/ea $1,748.29/1 per ea only $1,748.29/eaSave 39%

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OVERVIEW

Reliable Control for Specialty Gas Applications

When your work involves specialty gases that demand the highest levels of cleanliness and corrosion resistance, the Miller Smith 320 Series High Purity Two-Stage Regulator is the tool for the job. This isn't your standard shop regulator; it is a precision instrument built from 316 stainless steel to handle the tough stuff—corrosive gases that would eat through standard brass equipment. With a CGA 705 connection, it is ready for specific chemical applications right out of the box.

Why Two-Stage Matters

If you are running sensitive analytical equipment or precise chemical processes, pressure fluctuation is the enemy. Single-stage regulators allow the outlet pressure to creep up as the tank pressure drops. This Miller Smith two-stage regulator eliminates that problem by stepping the pressure down twice, giving you a rock-steady 0-250 PSI delivery pressure from a full tank all the way down to empty. You get consistent flow without constantly adjusting the knob.

Built for Safety and Durability

Dealing with hazardous gases requires equipment you can trust. This regulator features a metal-to-metal diaphragm seal, eliminating rubber seals that can leak or contaminate your gas. It also includes captured vent ports, allowing you to pipe any potential leaks away from the work area—a must-have feature for safety compliance. The 316 stainless steel filtered seat not only protects the regulator from internal damage but also ensures that your high-purity gas stays pure.

Key Features for the Pro

  • Stainless Steel Body: 316 SS bar stock resists corrosion and maintains purity.
  • Precise Control: Convoluted SS diaphragm for accurate pressure settings.
  • Easy Monitoring: Large 2.5-inch gauges make it easy to check tank and line pressure at a glance.
  • Versatile Mounting: Threaded front and rear bonnets allow for panel mounting if needed.

Whether you are setting up a lab, a testing facility, or a specialized welding application requiring exotic gases, this Miller Smith regulator delivers the reliability and safety you need.

Additional Information
Brand:Miller
Packaging Description:1 Per Ea
Gas Service:Corrosive, High Purity, Specialty Gas
Stage Type:Two Stage
Body Material:316 Stainless Steel
Inlet Connection:CGA 705
Outlet Connection:1/4" FNPT
Delivery Pressure Range:0-250 PSIG
Max Inlet Pressure:3500 PSIG
Series:320 Silverline

INCLUDED

  • Miller Smith 320 Series Two-Stage Regulator
  • Instruction Manual

APPLICATIONS

  • Analytical Laboratories
  • Semiconductor Manufacturing
  • Chemical Processing
  • Corrosive Gas Handling (Ammonia, Amines)
  • High Purity Gas Delivery
  • Research and Development Facilities
  • Laser Gas Regulation

FAQ

A two-stage regulator reduces the cylinder pressure in two steps, providing a constant delivery pressure even as the cylinder pressure drops. A one-stage regulator may show a slight increase in delivery pressure as the cylinder empties.

CGA 705 is typically used for corrosive gases such as Ammonia, Dimethylamine, Monoethylamine, and Trimethylamine. Always verify compatibility with your specific gas supplier.

316 Stainless Steel offers superior corrosion resistance compared to brass or 304 stainless steel, making it essential for handling corrosive gases and maintaining high purity in the gas stream.

This model features captured vent ports (1/16" FNPT) in the bonnet rather than a standard relief valve venting to atmosphere. This allows hazardous gases to be piped away safely in the event of a diaphragm failure.

No, this regulator comes with a CGA 705 connection which is not for oxygen. Oxygen regulators require CGA 540. Never adapt a regulator to a different gas service without manufacturer approval.

This specific model (323-00-31-00-00) has a delivery pressure range of 0-250 PSIG.

Yes, for hazardous or corrosive gas applications, a Cross Purge Assembly is highly recommended to safely remove toxic gas traces during cylinder changes.

Yes, the front and rear bonnets are threaded to accommodate front panel mounting.