install

G-TEC provides a shutoff valve with the Torch Booster or Refueler

Flexible hose screws onto the cabinet for low pressure gas supply

Torch Boosters elevate

gas for direct supply to

torches and cutting tables

Natural Gas Cylinders

hold high volumes of

natural gas at only 275 psi

Refuelers let you fill

G-TEC cylinders with high

pressure natural gas

Torch Applications

work better with high

pressure natural gas

This is a general description of how to install G-TEC Torch Boosters and Refuelers.

Please read the Owner Manual that is included with with your G-TEC System for complete installation details.

Note: G-TEC Pressure Boosters must be installed by a person qualified to

work on natural gas pipes. Do not install your system yourself unless you are qualified.

Click here for instructions to install TB-15/30/60/125 Torch Boosters, Refueler 60,180 and DM-60 Torch Booster/Refueler

Click here for instructions to install TB-250/500 Torch Boosters

Start with the right tools! - You will need a roll of Teflon sealant tape, 4 sizes of open end wrenches ( 9/16”, 5/8”,3/4” and 7/8”) and an adjustable wrench that opens at to least 1 1/4”.

Install a tee fitting in the building gas line

A qualified technician should install a tee in the existing gas line with a 1/2” male fitting for the TB-15/30/ 60 or 1” for the TB-125 Torch Booster. Do not attempt this installation yourself unless you are qualified to work on natural gas pipes. Gas Supply pressure must be between ¼ to 1 psi. Do not connect gas pressure higher than 1 psi to your pressure booster!

Connect the ball valve to the gas line

G-TEC includes a shutoff valve with each system, 1/2” for the TB-15/30/60 and 3/4” for the TB-125. Apply Teflon sealant tape to the thread on the male pipe end then tightly screw the shutoff valve onto the pipe.

B fitting adapter is included with the Torch Booster

Or, connect a torch directly to the Torch Booster

You may connect a torch directly to the Torch Booster and G-TEC provides an adapter that presents a “B” fitting to your torch hose. If you attach a torch directly to the Torch Booster be sure to install “Torch Mount” flashback arrestor check valves on the torch for safety.

Or, connect your own regulator to the Torch Booster

If you already own a regulator with a CGA 510 fitting (this is the same fitting that screws onto a propane BBQ tank) then you can use it with your Torch Booster. Your system includes a female CGA 510 fitting and adapter for connection to the Torch Booster. Be sure to install a “Regulator Mount” flashback arrestor on the regulator, or a “Torch Mount” flashback arrestor on your torch.

CGA 510 adapter is included with the Torch Booster

You can use your own regulator if it has a CGA 510 stem

Connect the other end of the supply hose to the gas inlet fitting on the back of the Torch Booster

You must use the hose supplied by G-TEC. Do not substitute any other hose, hard pipe or yellow flex hose. Safety equipment inside the Torch Booster is calibrated to the hose provided and anything else will cause the system to shut down without warning.

You will need two wrenches for this step. Use a 9/16” wrench on the nut at the end of the hose for the TB-15/30/60 or ¾” wrench for the TB-125, and a 5/8” (TB-15/30/60) or 3/4” (TB-125) wrench on the nut attached to the cabinet. When tightening the fitting hold pressure on the cabinet nut so that it does not turn. Failure to support the nut on the cabinet will result in twisting the internal piping and void your warranty.

Shutoff valve, adapter and flexible supply hose

Connect the flexible supply hose to the shutoff valve

After the shutoff valve is connected to the supply pipe screw the adapter fitting into the ball valve. Be sure to use sealant tape for this fitting and tighten the adapter with a 7/8” open ended wrench. Next, screw the flexible hose onto the adapter with a 3/4” wrench.

Brace this fitting

when tightening

hose nut

Wrap the end of the gas pipe

with Teflon tape

Screw the shutoff valve onto

the pipe and tighten with

the crescent wrench.

You can connect a regulator and flashback arrestor to the gas outlet fitting

When connecting the regulator to the Torch Booster use sealant tape on the high-pressure outlet fitting on the Torch Booster. Be sure to hold a wrench on the high pressure outlet fitting when screwing on the regulator to relieve pressure on the fitting. Failure to do so may result in twisting the internal piping and void the warranty.

Connect a “Regulator Mount” flashback arrestor check valve to the regulator.

If you are connecting the Torch Booster to a pipe manifold put a B to NPT adapter on the end of the flashback arrestor check valve for connection to the pipe going to the jewelers’ torches. This adapter is not part of the Torch Booster system but can be ordered from G-TEC, or purchased locally.

Connect your Refueler to your natural gas cylinder, or G-TEC Manifold

Your Refueler comes with a hose to connect to either single cylinder (left) or a G-TEC Manifold (right). Cylinder valves are CGA 510 female fittings.

How To Start Your G-TEC System

As a safety feature G-TEC Torch Boosters and Refuelers must build up a minimum 22-25 psi before they will operate automatically. Turn on the ON switch then press START and hold it until the amber RESET light goes out. At this point the unit has built sufficient pressure to operate without further attention.

TB-250/TB-500 Torch Booster connection to low pressure gas

TB-250 and TB-500 Torch Boosters are hard piped to the low-pressure natural gas pipeline. There are two gas inlet fittings on the rear panel of the unit: the fitting on the left side is for gas supply pressure between 1 to 5 psi and the inlet fitting closer to the red/yellow cutoff switch is for gas pressure between ¼ to 1 psi. Whichever inlet fitting you connect to, cap the other fitting.

These Torch Boosters require a minimum 1 1/2” diameter supply pipe to come as close as possible to the point of connection before breaking down to a 3/4” pipe to connect to the Torch Booster. The 3/4” pipe should be as short and with as few bends as possible.

Electrical requirement is 208 - 220V single phase 30 amp and it is essential that power supply meet this parameter - measure your power supply to be sure. The best power supply is 208V but voltage up to 220V is acceptable. Voltage in excess of 220V will cause the Torch Booster to overheat and spontaneously shut down. Some customers assume their power supply is 208V and don’t actually measure it until they start to experience shutdown problems.

The gas supply pipe is connected to the low pressure inlet (¼ to 1 psi) in this photo.

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