Phone: 1-877-739-2721
 

Industrial Gas Manifold Systems:

Each Rexarc industrial gas distribution system comes complete with everything needed to meet applicable codes. This section contains configurations for standard gas manifold systems for industrial gases. These gas distribution manifolds are included in Rexarc's five days or free shipping program. If you don't find the configuration you need, don't hesitate to contact Rexarc to have a customer designed gas distribution system built to meet your needs.

Pipe Sizing Chart

Fuel gas branch lines under 2, over two, or no pipe size restriction on branch lines with brazing torch station and liquid flashback arrester components
Protective equipment, including a flashback arrester, is required in fuel gas and oxygen piping systems to prevent a reverse flow of oxygen from flowing back up the fuel gas line, or a reverse flow of fuel gas from flowing back up the oxygen line, also to prevent excessive pressure build-up in the system and stop a flashback from reaching the supply source. Piping systems shown comply to National Fire Protection Association Bulletin #51. Copies can be obtained by writing

National Fire Protection Association, Inc.,
Batterymarch Park, MA 02269.

 
  • 15 to 30 psig operating pressure
  • 30 to 50 psig operating pressure
  • 50 to 100 psig operating pressure

 

Standard
Cubic Ft
Per Hour
Length of pipe — Lineal Feet
50 100 250 500 750 1000 1250 1500 2000
100 3/4” 3/4” 1” 1” 1” 1” 1-1/4” 1-1/4” 1-1/4”
200 3/4” 1” 1” 1-1/4” 1-1/4” 1-1/4” 1-1/2” 1-1/2” 1-1/2”
300 1’ 1’ 1-1/4” 1-1/4” 1-1/2” 1-1/2” 1-1/2” 1-1/2” 1-1/2”
400 1” 1-1/4” 1-1/4” 1-1/2” 1-1/2” 1-1/2” 2” 2” 2”
500 1-1/4” 1-1/4” 1-1/2” 2” 2” 2” 2” 2” 2-1/2”
750 1-1/4” 1-1/2” 1-1/2” 2” 2” 2-1/2” 2-1/2” 2-1/2” 2-1/2”
1000 1-1/2” 1-1/2” 2” 2-1/2” 2-1/2” 2-1/2” 2-1/2” 2-1/2” 3”
1250 1-1/2” 1-1/2” 2” 2-1/2” 2-1/2” 2-1/2” 3” 3” 3”
1500 1-1/2” 2” 2” 2-1/2” 3” 3” 3” 3” 3-1/2”
1750 1-1/2” 2” 2-1/2” 2-1/2” 3” 3” 3” 3-1/2” 3-1/2”
2000 2” 2” 2-1/2” 3” 3” 3” 3-1/2” 3-1/2” 3-1/2”
2500 2” 2-1/2” 2-1/2” 3” 3-1/2” 3-1/2” 3-1/2” 3-1/2” 3-1/2”
3000 2” 2-1/2” 3” 3-1/2” 3-1/2” 3-1/2” 3-1/2” 4” 4”
3500 2-1/2” 2-1/2” 3” 3-1/2” 3-1/2” 3-1/2” 4” 4” 4”