Refueler 60 with natural gas cylinder 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

Order a G-TEC

Natural Gas

Pressure Booster

G-TEC Systems are

Approved in the

US and Canada

Contact G-TEC

if you have

questions

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 and DM-60 Torch Booster/Refueler

Click here for instructions to install TB-250/500 Torch Boosters and Refueler 180

Low pressure natural gas pipe tee

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


TB-15/30 Torch Boosters require a minimum 1/2” diameter low pressure gas supply pipe. TB-60, Refueler 60 and DM-60 require a minimum 3/4” diameter low pressure supply pipe. TB-125 requires a minimum 1” diameter low pressure supply pipe. Do not connect a Booster/Refueler to a pipe leg that has a heater, oven or other high volume gas consuming device sharing the pipe.


Do not attempt this installation yourself unless you are qualified to work on natural gas pipes. For most applications gas supply pressure should be between ¼ to 1 psi….some applications can support up to 5 psi gas supply but this should be discussed with G-TEC on a case by case basis.











Connect the ball valve to the gas line


G-TEC includes a shutoff valve with each system, 1/2” for the TB-15/30 and 3/4” for the TB-60/125. 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.

B fitting adapter with torch hose

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/Refueler 60/DM-60

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.


Newer G-TEC systems have a lock fitting designed to prevent internal piping from twisting so the nut can be tightened with a single wrench.

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.

Wrap pipe end in Teflon tape

Connect a regulator and flashback arrestor to the gas outlet fitting if you have a Torch Booster


When installing the regulator on 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. Newer G-TEC Torch Boosters have a lock fitting designed to prevent internal piping from twisting.


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. If the unit makes a clicking sound or seems to struggle to start STOP AND CALL G-TEC - 1-800-451-8294.

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

TB-250 and TB-500 Torch Boosters and Refueler 180 Cylinder Filling Systems 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 with a metal cap using Teflon sealant.

If air gets into the Torch Booster/Refueler it will  VOID THE WARRANTY and destroy the compressors.


These units 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 inlet on the cabinet. The 3/4” pipe should be as short and with as few bends as possible.


Electrical requirement for the Refueler 180 is 120 V 30 amp service. For the TB-250 and TB-500 Torch Boosters the electrical requirement is 208 single phase 30 amp and it is essential that power supply meet this parameter - measure your power supply when the Booster’s compressors are running to be sure. Voltage in excess of 220V  or lower than 200V will cause high amperage, burning at wire connections and VOID THE WARRANTY. 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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How to install your G-TEC System

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

Order a G-TEC

Natural Gas

Pressure Booster

G-TEC Systems are

Approved in the

US and Canada

Contact G-TEC

if you have

questions

Refuelers let you fill

G-TEC cylinders with high

pressure natural gas

Torch Applications

work better with high

pressure natural gas