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Regulators

 

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How to Select Regulators

How to Order Praxair Regulators

Regulator Summary

Critical Purity - 4000 Series Regulators

These stainless steel and brass regulators are highly recommended where purity and contamination requirements are extremely important. They are most often used with Critical Purity Gases (greater than 99.9995% or purity grade 5.5) and Toxic or Flammable gases, where vent lines are required from the regulator. The 4000 Series regulators are available for both corrosive and non-corrosive service.

High Purity - 3000 Series Regulators

These nickel-plated brass/stainless steel regulators are recommended for applications where diffusion resistance is an important factor in ensuring purity. They provide the same features as the 4000 series with the exception of the relief valve. This series is most often used with high purity gases (equal to 99.999% or purity grade 5.0). The 3000 Series regulators are available for both corrosive and non-corrosive service.


High Purity Economical - 2000 Series Regulators

These chrome-plated brass regulators have similar features to the 3000 Series with a few specific design characteristics. They are most often used with high purity gases (less than 99.999% or purity grade 5.0) when higher flow rates are required and cost is the most important issue. The 2000 Series regulators are available for noncorrosive service.

Special Purpose Regulators

These regulators incorporate quality features from all of the above series. They have been designed with special features for specific applications.

The following Regulator Reference Guide will assist you in the appropriate selection of a Specialty Gas regulator. We have provided a "Series" recommendation for each pure gas offered in this catalog. Within each Series select which model best suits your needs using the selection and reference guidelines. If you have any questions, contact your local Praxair Specialty Gases representative or Customer Service Center.

   

Click on your desired regulator below for more information.

 

Critical Purity – 4000 Series

 

Special Purpose

Non-Corrosive Models Regulator Type
4012 Series Dual Stage
4002 Series Single Stage
4005 Series Line Regulator
Corrosive Models Regulator Type
4032 Series Dual Stage
4022 Series Single Stage
4025 Series Line Regulator
 
Regulator Models Regulator Type
2006 Series
Cryogenic Liquid Cylinder Service
Single Stage
3025 Series
Non-Corrosive Gas in Lecture Bottles
Single Stage
3026 Series
Corrosive Gas in Lecture Bottles
Single Stage
100 Series
Corrosive Service
Dual Stage
4083 and 4085 Series
Critical Purity/High Flow, Non-Corrosive Service
Single Stage/Line
4084 and 4086 Series
Critical Purity/High Flow, Corrosive Service
Single Stage/Line
4092 and 4093 Series
High Inlet/Outlet Pressure for Corrosive and Non-Corrosive Service
Piston
145 Series
High Inlet/Outlet Pressure for Corrosive and Non-Corrosive Service
Piston
4094 and 4095 Series
High Pressure/High Flow
Piston
4096 Series
Dive Gas Transfill Regulator
Piston
4097 and 4098 Series
Laser Assist Regulator
Pilot/Dome Load
4008 Series
High Purity, Corrosive Gas Service
Single Stage
3008 Series
Electrically Heated Regulator
Single Stage
170 Series
Low Pressure Line Regulator
Line
3028 Series
Lecture Bottles, Corrosive Service
Single Stage
4448 Series
Vaporizing Regulator
3000 Series
Flowmeter and Regulator Combinations Corrosive and Non-Corrosive Service
Single and Dual Stage
300 Series
High Purity/Low Flow for Corrosive and Non-Corrosive Service
Two Stage
7002 Series
Semiconductor Process Gas Regulators
Single Stage
7003 Series
Semiconductor Process Gas Regulators
Single Stage
7004 Series
Semiconductor Process Gas Regulators
Single Stage

 

 

High Purity – 3000 Series

Non-Corrosive Models Regulator Type
3012 Series Dual Stage
3002 Series Single Stage
3004 Series Line Regulator
Corrosive Models Regulator Type
3032 Series Dual Stage
3022 Series Single Stage
3024 Series Line Regulator
 

 

 

High Purity Economical – 2000 Series

Non-Corrosive Models Regulator Type
2012 Series Dual Stage
2002 Series Single Stage
2005 Series Line Regulator
 

 

 

General Purpose

Non-Corrosive Models Regulator Type
120 Series Single Stage
100 Series Dual Stage
1009-65 Series Single Regulator
1009-75 Series Two Stage