ESAB No.55 O-A Heating Nozzle P/N 20238 for Use with C-32 or C-77 Oxy-Acetylene Cutting Torch Troubleshooting instruction

INSTRUCTIONS for F-14-460

April, 1995

INSTRUCTIONS for F-14-460

April, 1995

NO. 55 O-A Heating Nozzle

P/N 20238

for use with C-32 or C-77 Oxy-Acetylene Cutting Torch

This multiflame heating nozzle is designed for heating applications using a C-32 or C­77 cutting torch. It is like a standard cutting nozzle without a cutting oxygen bore and it
connects to the torch head in the same manner as a cutting nozzle.

Use only acetylene. Do not use with any other fuel gas.

PRECAUTIONS

To prevent overheating and flashbacks, read and understand the following precautions:

1. Do NOT use this heating nozzle on cutting attachments. Use only hand cutting
torches capable of cutting at least 12-in. thick steel.

2. Be sure to use the oxygen and acetylene pressures as given below using 3/8-in. I.D.
hoses with 1/4-in. I.D. hose fittings.

3. If using hose lengths greater than 25-ft., use an oxygen (P/N 07X17) and acetylene
(P/N 262510) test gauge adaptors to make sure that the recommended operating
pressures are available at the torch inlets.

4. Withdrawal of acetylene from a cylinder should not exceed 1/7 of the cylinder capac­ity. Therefore, if using a cylinder smaller than a WTL (390 cf), 2 or more cylinders
should be manifolded.

5. With proper operating pressure, flame inner cone height should be approximately 1/
2-in. long. Do not operate with flames too short.

6. Do not operate the heating nozzle too close to the work. The tip of the flame inner
cones should be 1/8 to 1/4-in. from the work.

7. If you hear frequent popping noises at the nozzle, a cross leak has developed. Re­tighten the nozzle. If popping continues, send the torch and nozzle to your ESAB
distributor for repair.

OPERATING DATA - NO. 55 O-A Heating Nozzle, P/N 20238

Flame

Oper. Pressure, psig Consumption, cfh Inner Core No. of Tip Cleaning

Torch Oxygen Acetylene Oxygen Acetylene Height Flames Drill Size

C-32 7-11 5-8 70-86 50-62 1/2" 9 61
C-77 10-13 12 -15 70-77 50-55 1/2" 9 (0.039" dia.)

NO. 55 O-A Heating Nozzle

P/N 20238

for use with C-32 or C-77 Oxy-Acetylene Cutting Torch

This multiflame heating nozzle is designed for heating applications using a C-32 or C­77 cutting torch. It is like a standard cutting nozzle without a cutting oxygen bore and it
connects to the torch head in the same manner as a cutting nozzle.

Use only acetylene. Do not use with any other fuel gas.

PRECAUTIONS

To prevent overheating and flashbacks, read and understand the following precautions:

1. Do NOT use this heating nozzle on cutting attachments. Use only hand cutting
torches capable of cutting at least 12-in. thick steel.

2. Be sure to use the oxygen and acetylene pressures as given below using 3/8-in. I.D.
hoses with 1/4-in. I.D. hose fittings.

3. If using hose lengths greater than 25-ft., use an oxygen (P/N 07X17) and acetylene
(P/N 262510) test gauge adaptors to make sure that the recommended operating
pressures are available at the torch inlets.

4. Withdrawal of acetylene from a cylinder should not exceed 1/7 of the cylinder capac­ity. Therefore, if using a cylinder smaller than a WTL (390 cf), 2 or more cylinders
should be manifolded.

5. With proper operating pressure, flame inner cone height should be approximately 1/
2-in. long. Do not operate with flames too short.

6. Do not operate the heating nozzle too close to the work. The tip of the flame inner
cones should be 1/8 to 1/4-in. from the work.

7. If you hear frequent popping noises at the nozzle, a cross leak has developed. Re­tighten the nozzle. If popping continues, send the torch and nozzle to your ESAB
distributor for repair.

OPERATING DATA - NO. 55 O-A Heating Nozzle, P/N 20238

Flame

Oper. Pressure, psig Consumption, cfh Inner Core No. of Tip Cleaning

Torch Oxygen Acetylene Oxygen Acetylene Height Flames Drill Size

C-32 7-11 5-8 70-86 50-62 1/2" 9 61
C-77 10-13 12 -15 70-77 50-55 1/2" 9 (0.039" dia.)

F-14-460 4/95 3C Printed in U.S.A.

F-14-460 4/95 3C Printed in U.S.A.