Our Patented Gas Saver System Controls The "Gas Blast" Caused By The Higher Pressure Needed For Choked Flow .
Like "Chocked Flow" it Does Not Need Any Moving Parts or Feedback Circuits to Achieve the Gas Savings and Improved Weld Starts!
That excess gas, stored in the gas delivery hose when welding stops, "blasts out"
of the MIG nozzle at each weld start! This high flow not only wastes gas but the
high velocity (we have measured peak flows exceeding 200 CFH) creates a high
degree of turbulence that causes air to
be pulled into the shielding gas stream. The air causes problems with
weld quality and produces excess spatter. This gas waste can be over
half the total gas used.
The solution to the gas waste and high peak gas surge
is our patented Gas Saver System.
It is a simple, custom extruded, small ID, heavy wall thickness gas delivery hose with
a peak flow limiting orifice built into in the welder/feeder end brass
hose barb fitting. It maintains system pressure and therefore Automatic Flow Compensation.
Also very important, the controlled small amount of extra gas it retains, quickly purges air from the
weld start zone and MIG gun nozzle. Purging air
from the weld start area and gun nozzle is essential for quality weld
Some devices have been tried over the years that attempt to control flow at the wire feeder or welder to eliminate surge and have been rejected by welders! We used to agree with management believing welders just didn't care about "saving gas." Since forming WA Technology and working with a number of welders in production operations related to gas flow control we have found they were right! These devices such as Simple Orifices, Flowmeters or Regulators and Low Pressure Regulators that mount at the wire feeder do not provide the needed extra start gas to purge air!
Stauffer in a 1982 patented device (Patent Figure Left) discussed the need for extra start gas and in his device adding a reservoir (#112 in Figure) to hold and deliver some extra start gas! When encountering flow control at the wire feeder, welders either drill out the orifice or if a flowmeter or regulator mounted at the wire feeder is being used they increase the steady state flow in attempt to compensate! They may not even know that they are trying to provide some extra purge gas but they see the inferior weld start result and attempt to compensate for the lack of purge gas! Increasing the steady state flow DOES NOT fully solve the lack of some extra start gas and it WASTES RATHER THAN SAVES GAS! IT DEFEATS WHAT THE MANAGEMENT WAS ATTEMPTING TO ACCOMPLISH IN THE FIRST PLACE!
CLICK TO SEE DOCUMENTED CASES OF THE PROBLEMS WITH LACK OF START GAS
CLICK TO SEE WHY WE SELL DIRECTLY ON THE INTERNET AND NOT IN "STORES'"
The patented Gas Saver System (GSS):
1) Reduces the volume of excess initial gas flow at weld starts over 80%.
Quickly supplies a controlled amount of extra start gas purge at each weld start.
3) Controls the maximum gas velocity of the extra start purge gas using a
peak flow control orifice preventing excess turbulence.
4) Maintains system pressure and "Automatic Flow Compensation."
5) Does the above with no moving parts or knobs to adjust- just continue to use your existing flow control device to set the steady state flow rate.
The GSS provides improved weld starts with less spatter and elimination of sub surface porosity while saving money. There are well over 10,000 GSS's in fabrication shops saving millions of dollars of wasted shielding gas each year while improving weld start quality!
Note: The peak flow control orifice Does Not effect the steady state flow while welding - that is set by the
existing conventional gas flow control device. For cylinder gas supply
that can be a quality regulator/flowmeter or a regulator/flowgauge. On pipeline
supply it can be a flowmeter or simple orifice located at the pipeline drop. It will prevent setting very high excessive flow rates if that is an issue.