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121-2002 - Miller Smith Silverline 2-Stage CO2 Regulator 0-60 PSI CGA 320

Packaging: 1 per ea
$862.78/ea $571.11/1 per ea only $571.11/eaSave 34%

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SKU: MIL121-2002 Categories: ,

OVERVIEW

Precision CO2 Control for Laboratory and Industrial Applications

The Miller Smith 121-20-02 Silverline Series General Purpose Two Stage Regulator is engineered to meet the rigorous demands of laboratory and analytical environments where gas purity and pressure stability are paramount. Designed specifically for Carbon Dioxide (CO2) service with a CGA 320 inlet connection, this regulator exemplifies the quality and reliability associated with the Miller Smith brand. The two-stage design is a critical feature for applications requiring unwavering consistency; unlike single-stage regulators that may allow delivery pressure to fluctuate as the supply cylinder drains, this unit maintains a constant output pressure throughout the life of the cylinder.

At the heart of the 121-20-02 is a large 1-7/8 inch diaphragm, which provides exceptional sensitivity and precise control over the delivery pressure range of 0-60 PSIG. This level of control is essential for sensitive instrumentation and process control where even minor deviations can impact results. The regulator also features Miller's proprietary Sure-Seat technology and a filtered seat design. These features work in tandem to prevent debris from entering the seating area, thereby ensuring maximum gas stream purity and significantly extending the service life of the regulator. This makes it an ideal choice for facilities that cannot afford downtime due to equipment failure or contamination.

Durability is not sacrificed for precision. The body is machined from rugged brass bar stock and finished with a high-quality plating that protects the bonnet, body, and gauges from corrosion and wear. The large 2-1/2 inch single scale gauges are easy to read, allowing operators to monitor cylinder and delivery pressure at a glance. Whether used for inert gas blanketing, analytical instruments, or general plant maintenance, the Miller Smith 121-20-02 delivers the performance and reliability required by professional gas users.

Additional Information
CGA Fitting:cga320
Item:Regulator
Max Inlet:3500psi
Max Outlet:60psi
Used On Which Gas:CO2
Series:Silverline 120
Stage Type:Two Stage
Body Material:Brass (Plated)
Outlet Connection:1/4" MNPT with Needle Valve
----- new values below ----
Series:Silverline 120
Stage Type:Two Stage
Body Material:Brass (Plated)
Diaphragm Size:1-7/8 inch
Gauge Size:2-1/2 inch
Outlet Connection:1/4" MNPT with Needle Valve
Brand:Miller
CGA Fitting:cga320
Item:Regulator
Max Inlet:3500psi
Max Outlet:60psi
Used On Which Gas:co2

INCLUDED

  • 1x Miller Smith 121-20-02 Silverline Two Stage Regulator
  • 1x Set of 2-1/2" Single Scale Gauges
  • 1x CGA 320 Inlet Connection
  • 1x 1/4" MNPT Outlet with Needle Valve
  • 1x Operations Manual

APPLICATIONS

  • Laboratory gas control and analysis
  • General plant maintenance and repair
  • Industrial shops requiring constant delivery pressure
  • Inert gas blanketing (CO2)
  • Pneumatic testing and calibration
  • Non-corrosive gas distribution

FAQ

A two-stage regulator, like the Miller Smith 121-20-02, reduces cylinder pressure in two steps. This allows it to maintain a constant delivery pressure even as the cylinder pressure drops during use. A single-stage regulator may show a slight rise in delivery pressure as the cylinder empties, requiring manual adjustment.

The CGA 320 fitting is the standard connection for Carbon Dioxide (CO2) cylinders in the United States. This regulator is specifically configured for CO2 service.

This specific model comes with a CGA 320 inlet for CO2. To use it with Argon or Nitrogen (which typically use CGA 580), you would need to change the inlet stem and nut or use an adapter, provided the gas service is compatible (inert/non-corrosive). However, it is sold ready for CO2.

The Miller Smith 121-20-02 has a delivery pressure range of 0-60 PSIG, making it suitable for low to medium pressure applications.

Yes, this model is equipped with a 1/4" MNPT outlet that includes a needle valve for fine flow control.

No, the Silverline Series 120 is designed for general purpose, inert, and non-corrosive gases only. Using it with corrosive gases can damage the brass components and seals.

The regulator is rated for a maximum inlet pressure of 3500 PSIG.

The regulator features a large 1-7/8" diaphragm, typically made of stainless steel or high-grade elastomer in this series, designed for precise pressure control.