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Turbulent flow pulls air into the gas shield creating excess weld spatter
and inferior weld quality. Flow rates causing turbulent
shielding can be as low as about 40 CFH depending on nozzle size! We have measured 150 CFH with some flowmeters when the
ball is pinned to the top of the flowmeter! That is not only wasting
gas but definitely pulling air into the shielding gas stream causing excess
spatter and inferior weld quality.
To Use Our "Flow Rate Limiter"
Simply:
Set maximum flow rate desired.
Slip "Flow Rate Limiter" over control knob so Pin
limits further flow increases.
Tighten set screw. Locking
system blocks set screw access (Note: all locks are keyed the same.)
Download
Sales Flyer PDF |
|
LIMITED TIME OFFER
FREE
"Lean Welding Manufacture Training" designed for
welders
$95 VALUE
SEE
DETAILS
|
FLOW RATE LIMITER
Part Number WAT-FRLL Shown Fits most popular flowmeters and
regulator- flowmeters.
|
|
Details
of Free Portable Flow Meter Offer
Purchase one or more WAT FRL or
FRLL products and receive one
WAT-LWM-WELD-PFM
"Lean Welding Manufacture Training" program designed for welders (a
$95.00 value) per shipping location during this promotion period.
This will not show on the order-- a PDF file will be sent to the email
address placing the order. Note only one provided per order (not per product) for each
new ship-to location during the promotion. |
The flowmeter on the left incorporates a typical needle valve to control gas
flow rates. A wide flow
adjustment range is possible. Unfortunately welders often use the
adage that; "If some is good more must be better," when
setting gas flow rates. This not only wastes gas but creates a
turbulent shielding gas stream pulling air into the arc.
The patent pending WA Technology Flow Rate Limiter (FRL)
has a billet aluminum body with a permanently affixed
stainless steel PIN. When attached to the flow control knob, the PIN
contacts
the flowmeter body limiting the amount it can be turned. Controlling the counterclockwise movement restricts the maximum flow.
The amount it can be decreased depends on the specific flowmeter model. Details are provided
for popular models in the table below. |
 To assure the settings are not altered, a Flow Limiting Locking system
(FLL) is available. It consists of a stainless steel Blocking Bar that
slips into holes in the FRL and
prevents access to the set screw. A sold brass Lock in then
inserted into a hole in the Blocking Bar to prevent its
removal. Payback can be measured in weeks from gas savings with improved weld
quality a bonus. Model FRLL
includes a FRL with a
FLL.
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WAT FRL Mounted on Several Flowmeter
and Regulator/Flowmeter Models
|
|
Shielding Gas Source |
Brand
(note 1) |
Model |
Figure
Below |
Max Flow (2)
Set As Desired |
Min Flow |
| Cylinder |
ESABTM |
R-33 (3) |
A |
40 CFH |
23 CFH
(7) |
| Pipeline |
ESABTM |
L-33 (3) |
A |
40 CFH |
23 CFH
(7) |
| Cylinder |
ESABTM |
R5007(4) |
B |
40 CFH |
11 CFH
(7) |
| Pipeline |
ESABTM |
L-32 (4) |
B |
40 CFH |
11 CFH
(7) |
| Cylinder |
VictorTM |
HRF1435 (5) |
C |
40 CFH |
32 CFH |
| Cylinder |
HarrisTM |
355-2 |
similar to C |
40 CFH |
15 CFH |
| Pipeline |
VictorTM |
FM372KM (6) |
D |
40 CFH |
32 CFH |
|
Footnotes:
1)
ESAB is a registered trademark of ESAB Welding and Cutting Products; Victor
is a registered trademark of Thermadyne Holdings. Harris is a
registered trademark of Harris Calorific, Inc - A Lincoln Electric Company.
This product or WA Technology, LLC are not affiliated with these companies.
2)
The Max Flow was arbitrarily set at 40 CFH to show what minimum flow would
be available at that setting. The Max Flow can be set at any level
desired before the FRL is locked in place.
3)
Valve placement in this model may require mounting with the lock up.
4) It
is also possible to mount the lock up and essentially lock the flow at the
desired setting.
5)
It is also possible to mount the lock facing back toward the body and essentially lock the
flow at the desired setting.
6)
For this model the normal mounting is with the lock facing up (see photo D).
7)
Special Reduced Flow Range FRLL available for this model flowmeter of
regulator/flowmeter: WANT TO
SEE INFORMATION ON THIS PRODUCT?
|
| A |
B |
C |
D |
 |
|
 |
|
|
Fits Some Other Models |
Victor
Model HRF2325 regulator (photo left) is an
 old style with a plastic
knob. The knob diameter from peak to peak is larger than the 0.750
inches of the newer models and will not fit the FRL. The peaks were
simply removed with a Dermal Tool so it fit the hole in the
FRL.
A customer reports the
FRL fits a Harris
Model 355 (photo Left) When set at
45 CFH max they reported being able to reduce flow down to 20 CFH. Have another model?
Contact us with details to see if it will fit. |
|
Save Additional Gas Waste With Our Patented Gas Saver
System |
 |
Purchase
Training
Products |
Purchase Wire Feeding Aids |
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|
Purchase Gas Saving Products |
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|
Excessive Flow Rates Waste Shielding Gas and Cause
Turbulent Shielding. 
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