Technical Information

Fuel Consumption

Bethlehem’s Surface-Mixed Burners

Listed below are the fuel consumption data for the Bethlehem Burners. All burners were set at the maximum flame setting that yields the hottest flame without distorting the solid blue feature of the Bethlehem flame. The numbers are expressed in Liters Per Minute (LPM). The fuel used for the Alpha and Bravo burners was propane gas that was regulated by approximately 2 pounds per square inch (psi). The oxygen was delivered from a compressed gas cylinder with a regulator and set for approximately 8psi. The fuel used for the Champion and Grand burners was Propane gas that was regulated by approximately 5 pounds per square inch (psi). The oxygen was delivered from a compressed gas cylinder and set for approximately 20psi. Burner flames used for soft glass will not require as much heat as a flame for hard or borosilicate glass. All Bethlehem Burners can work both soft and borosilicate glass.

More technical information about our torches can be found here. If you’re using an Oxygen Concentrator with your Bethlehem Burner this document will also prove useful.

Alpha

Gas/Oxygen Flow Rates:

GAS: 2-5 psi – 3 LPM
OXYGEN: 8-20 psi – 10 LPM
BTU: 200 BTU per minute

Bravo

Gas/Oxygen Flow Rates:

GAS: 2-5 psi – 6 LPM
OXYGEN: 8-20 psi – 30 LPM
BTU: 570 BTU per minute

Champion

Gas/Oxygen Flow Rates:

GAS: 5 psi – 8 LPM
OXYGEN: 20 psi – 40 LPM
BTU: 775 BTU per minute

Champion Sharp Flame

Gas/Oxygen Flow Rates:

GAS: 5 psi – 8 LPM
OXYGEN: 20 psi – 40 LPM

Grand

Gas/Oxygen Flow Rates:

GAS: 5 psi – 12 LPM
OXYGEN: 20 psi – 60 LPM
BTU: 1,150 BTU per minute

The STACKS

Gas/Oxygen Flow Rates:

GAS: 2-5 psi – 3 LPM
OXYGEN: 8-20 psi – 10 LPM (STACKS I = 180 LPH, 6.36 cu ft/h; STACKS II = 900 LPH, 31.78 cu ft/h)

Sharp Flame Hand Torch

Gas/Oxygen Flow Rates:

GAS: 2-5 psi – 3 LPM
OXYGEN: 8-20 psi – 10 LPM

The Grand Sharp Flame

Gas/Oxygen Flow Rates:

GAS: 5 psi – 12 LPM
OXYGEN: 20 psi – 60 LPM
BTU: 1,150 BTU per minute

Product Diagrams

Alpha

Burner Configuration:

Center Fire – 6 jets
Face Diameter – 5/8″

Bravo

Burner Configuration:

Center Fire – 6 jets
Outer Fire – 12 jets
Face Diameter – 1″

Champion

Burner Configuration:

Center Fire – 6 jets
Outer Fire – 30 jets
Face Diameter – 1 1/8″

Grand

Burner Configuration:

Center Fire – 6 jets
Middle Fire – 12 jets
Outer Fire – 24 jets
Face Diameter – 1 3/8″

Parts of a valve