Petrogen Manual

Question 1

Liquid fuel hoses available in lengths?

Answer 1

6, 10, 20, 50, and 100 feet

Question 2

Oxygen hose lengths ?

Answer 2

9/16 hose connection … 25, 50 and 100 feet

Question 3

Torch head angles?

Answer 3

75, 90 and 180

Question 4

Fuels?

Answer 4

Use clean fuel, gasoline, white gas, camping fuel and stabilizes small engine fuels.

Question 5

Fuel tank ?

Answer 5

2 gallon top weld, operating pressure 20 psi. Container automatic pressure relief valves available at 35, 50 and 100.

Question 6

Fuel control packing nut,
fuel valve packing nut and pre heat oxygen packing nut should be checked?

Answer 6

As part of initial assembly,
routine maintenance and if
leaking is observed.

Question 7

Oxygen hose pressurization

Answer 7

Best to pressurize the oxygen hose before the fuel line. Purge the torch prior to light up.

Question 8

Debris between the regular and oxygen bottle valve can?

Answer 8

Create combustion inside the regulator.

Question 9

How to open the fuel tank shut off?

Answer 9

Open fuel tank shut off slowly 1/4 turn. Too fast will activate the fast flow check valve. Tap the top of the knob lightly to reset.

Question 10

How long it might take to purge fuel lines?

Answer 10

It may take up to 2 min per 25 feet.

Question 11

During cutting operations ensure pressure remains above?

Answer 11

10 psi

Question 12

Fill 2 quart fuel tank filled?

Answer 12

Fill with 1.5 quarts.

Question 13

Fill 2.5 gallon fuel tank to?

Answer 13

Fill to the weld line.

Question 14

Liquid fuel connections and oxygen fitting?

Answer 14

Liquid fuel connections have reverse threads and marked with a notch.
Oxygen fittings have standard right handed threads.

Question 15

Pumping the standard 2 gallon fuel tank will require….

Answer 15

80-100 pumps to reach 20 psi.

Question 16

What does overfilling the fuel tank cause?

Answer 16

Cause pressure to drop rapidly.

Question 17

Right and left gauges?

Answer 17

Left indicates the amount of pressure being derived to the torch,
The right gauge indicates the amount of pressure inside the bottle.

Question 18

Before light up?

Answer 18

Depress the high pressure oxygen trigger to purge the system.

Question 19

Light up; 3 control surfaces to activate….

Answer 19

Recommended sequence:
1/2 turn, purge, 1/2 turn

Question 20

Sequence order?

Answer 20

1) pre-heat oxygen know 1/2 turn
2) high pressure trigger: purge 3-5 sec
3) fuel control knob 1/2 turn

Question 21

Next after sequence order?

Answer 21

Rest tip directly on steel at 45 degree angle for 5-10 sec. Make no flame adjustments.

Question 22

How to run it?

Answer 22

Run hot rich (too lean overheat the head) desired setting 3/16 “ dark blue core

Question 23

Shutdown ops?

Answer 23

Close the fuel know, purge tech for 3-5 sec, close preheat oxygen.

Question 24

After torch shutdown?

Answer 24

Close tank fuel valve,
close oxygen bottle valve,
relieve pressure in the line by depressing high pressure oxygen trigger.

Question 25

Storage shutdown?

Answer 25

Work from the torch to the fuel tank removing any fuel left in the hose.

Question 26

Fuel system storage?

Answer 26

Never store any fuel system in an airtight container or compartment.
Petrogen tanks meets requirement for flammable liquid storage containers. Fuel will remain effective for 2-3 months when stored in the system.

Question 27

Ready levels:

Answer 27

1) Used when cutting operations are to be initiated in the shortest amount of time (pressurizes system)
2) Intermittent (Not under pressure)
3)Prolonged periods ( Everything disconnected and empty)

Question 28

Cutting:

Answer 28

Coupling distance is the distance between the tip and the material..1/4, 1/2
Steel is the fuel: BTU generated by the steel produce the majority of the overall energy

Question 29

Advanced Techniques

Answer 29

V-Cut
Hole Punching
Layer Cutting
Gap Cutting

Question 30

V-Cut

Answer 30

Used to grab steel from the top most layer of the stack to fuel the layers beneath

Question 31

Hole Punching

Answer 31

Maintain 1/4 coupling distance and increases to 1/2, move the torch 1/4 or 1/2” in to the left, right or back. Failure to maintain proper technique could result in overheating. Indications could be tip nut becoming loose and leaking around the tip nut due to melted o ring.

Question 32

Layer Cutting

Answer 32

When cutting layers, it may be necessary to increase on tip size

Question 33

Gap Cutting

Answer 33

Same as layer cutting. Maintain position until the burning of top layers passed the air gap.

Question 34

Tip maintenance

Answer 34

Cleaner tip, clean cut