Pre Weld Heating

Hot Coils® Specifications

(1) Based on 4 inch schedule 40 pipe at an ambient temperature of 70˚ F (21˚ C)

Download Specs (PDF Format)

Pre Weld Heating Coil Features

Quick and Easy Set-up:

Only 6 in. (150 mm) long and weighing in as little as 6 lbs. (2.7 kg.) Hot Coils®, part of your welders toolbox, can be easily set in place with your existing labor force. No need to hire specialized and expensive set-up crews resulting in time and dollar savings. Also eliminates the need to lug heavy propane tanks around the job-site to feed a Tiger Torch.

Low Voltage Requirements:

Hot Coils can be plugged into any 110/120 volt, 15 amp. power outlet. This allows you to utilize existing utility power or in remote applications plug into generators or welding machines. This eliminates the need and high cost of “High Voltage Generator Trucks”.

Adjustable Heat:

Hot Coils® feature an adjustable thermostat which allows you to preset the specified temperature of the weld joint meeting welding procedures and specification every time.

Accurate Heating:

The Hot Coils® thermostat holds the joint at the pre-set temperature. With an accuracy of +/- 2.5˚F it helps you maintain welding procedures and stay on specification every time.

Rapid Heating Cycle:

Depending on ambient temperature and pipe thickness, Hot Coils® can reach a maximum internal temperature of 550˚F (286˚C) within 20 minutes. This allows for a quicker welding cycle and increased productivity.

Uniform Heat:

Hot Coils® provide even heat throughout the entire joint. And unlike flame heating there are no “cold spots” in those hard to reach areas. Temperature can be charted to ensure compliance to welding specifications.

Versatility:

In addition to pipe pre-heating, Hot Coils® can also be used for Hydrocarbon bake-out applications. Simplifies the welder’s tool-box requiring only one tool to do multiple jobs.

Multi Tasking:

Using additional Hot Coils® reduces welder down-time. Hot Coils can be installed on the next joints to be welded, preheating them to be at the ready when the welder is. Maximizes welder efficiency and reduces down-time keeping you on or ahead of schedule.

Always On Spec.:

Can be used with Hot Coils® Data Loggers, chart recorders or any other recording device. Helps ensure you stay on spec. and provides quality assurance with a temperature profile chart of each weld.

Thinking Ahead:

Hot Coils® can be used in conjunction with electrical timers. Get a jump start on the day by having the coils preheat the weld joints before your crew starts the next shift.

Meets All Standards:

Hot Coils® have been approved with a zone 1 division 1 rating by UL, CSA and CUS regulatory agencies. This assures that you are using a product that has met the most stringent safety requirements.

Safe Operation:

Hot Coils® at maximum reach a low 125˚F (52˚C) outside shell temperature. Unlike open flame heating this reduces the chance of accidental burns.

Use Almost Anywhere:

Hot Coils® requires only low voltage and amperage to operate. No uncontrolled open flame. Safer and more environmentally friendly, increases the area in which the Hot Coils® can be operated in. Also eliminates the need to have a fire watch crew standing by.

Breath A Little Easier:

Operated by clean electrical energy Hot Coils® eliminate the dangers of open flame, explosive gasses and high heat hazards associated with propane. The operator is not exposed to the exhaust gasses or the burning of any pipe coatings or oil film.

All The Angles are Covered:

Hot Coils® can be used in horizontal, vertical or at any angle in between. Regardless of the direction of the pipe run, in-position welding becomes a breeze.

Uncluttered Work Space:

Hot Coils® only require low voltage wiring (extension cords). This eliminates high voltage electrical cable hazards in the work area.

Sized For The Job:

Hot Coils® are available to fit standard 4, 6, 8, 10 and 12 in. dia. pipe. This provides you with increased versatility by having the right tool in your tool box to handle any job.

Long Term Reliability:

Hot Coils® are manufactured with a tough stainless steel outer shell. Provides protection and helps improve the service life of the product allowing you a greater return on your investment.

Hot Coils®

Saving Time – Saving Dollars – Staying on Spec. – Safer Operation

Download Heating Coil Features (PDF Format)

Hot Coils® vs Flame Heating

It’s time to dump the old days… and the old ways ….

We no longer use an open flame for heating, cooking or providing light and now its time to use today’s technology in preheating pipe in preparation of welding or hydro carbon bake-out.

Hot Coils® versus propane heating of pipe … check out how they compare ….

Efficiency: Typically a Tiger Torch or open flame propane heating system is less than 50% efficient. Hot Coils® induction heating system is close to 95% efficient. This means that more energy is transferred directly to the area to be heated resulting in quicker more accurate heating of the joint.

Fast Accurate Temperature Control:

Hot Coils® with its adjustable thermostat allows you to preset the desired specified temperature and hold it there until you are ready to weld the joint. With Hot Coils® a typical 4” dia. Schedule 40 pipe at 70° F (21° C) can be brought to a maximum temperature of 550° F (286°C) within 20-minutes.  Achieving and maintaining a specified temperature is more difficult and time consuming with propane.

Uniform Heating: Because Hot Coils® wrap 360° around the pipe you achieve an even and uniform heat throughout the heating zone.  This eliminates “Cold Spots” associated with propane heating in difficult to reach hard to heat areas. Hot Coils® allow you to stay on specification throughout the entire joint area every time!

Use Anywhere: Unlike restrictions placed on using open flame heating systems on some job-sites, Hot Coils® can be used anywhere you can plug into a 110 volt 15 ampre service.

Clean Operation: Operated by clean electrical energy Hot Coils® eliminate the dangers of open flame, explosive gasses and high heat hazards associated with propane. The operator is not exposed to the exhaust gasses or the burning of any pipe coatings or oil film.

Low Operating Temperature: Operating a Tiger Torch in hot ambient temperatures is no fun at all and can really get the operator hot under the collar. In addition the entire pipe heat zone is exposed causing a burn risk. With Hot Coils® the maximum outer shell temperature does not exceed 150° F (66°C). This means heat is transferred to the pipe joint not to the work area or the operator.

Easy to Handle: Weighing as little as 6 lbs. (2.7 Kg.) Hot Coils® are easy to handle making set-up quick and effortless. Compare this to wrestling heavy propane tanks weighing 30 lbs. (13.6 kg) or more around the job-site.

Work Smarter – Increase Productivity!

With Hot Coils® the pipe is brought to an even uniform specified heat throughout the joint. The Hot Coils® can then be slid to the side to allow welding while they are still in place and continuing to hold the joint to the specified temperature. While welding one joint additional Hot Coils® can be preheating the next joint in the series to be welded so it’s ready when you are. Using Hot Coils® multiple joint heating system you can easily increase your production without adding additional labor!

Work a Little Greener:

Hot Coils operating from a clean 110 volt, 15 amp. power source and use on average less than $0.03* of electrical power per day. Hot Coils cast a smaller environmentally friendlier foot print compared to high powered, high voltage diesel generators or the burning of high amounts of fossil fuels when using propane tiger torches.

*Based on heating 10 joints per day, 15-minutes each at a cost of $0.08 kW/hr

Hot Coils®

Saving Time – Saving Dollars – Staying on Spec. – Safer Operation

Download Hot Coils vs Heating Flame (PDF Format)

Hot Coils® vs High Voltage Heating

Download Hot Coils vs High Voltage Heating (PDF Format)