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Bio-Degradable Water Descaler
GSTIC
LimeX
●Non Toxic, ●Non Hazardous, ●Non Corrosive ●Non Flammable● Biodegradable Descalers
How LimeX Works
LimeX is a water-based solvent containing wetting agents, corrosion inhibitors, anti-foam and degreasing compounds. It
is designed to penetrate and remove encrusted lime scale, rust, corrosion products and dirt from water-wetted surfaces
in process equipment, e.g., exchangers and liquid-ring vacuum pumps. LimeX can also be used to remove lime scale in
commercial and industrial applications.
With a pleasant citrus-lime fragrance that masks the obnoxious odors normally associated with dissolving water scale
and corrosion, LimeX changes from a pale yellow color to a vivid bluish-purple color when it is spent. It is low foaming
and quickly releases the carbon dioxide (CO ) gas generated by the reaction of lime scale with LimeX.
2
Before
&
After
Removes Scales pictures
above & makes pipes as
good as new
Why Use LimeX
The formation of scale in process equipment increases pressure drop, requiring more pumping horsepower to maintain
volumetric throughput. Heat transfer surfaces gradually become fouled and thermal efficiencies decrease. Pieces of
scale attach themselves to rotating equipment, i.e., pumps and mixers, and cause bearing failure. If these problems
sound familiar, then you know why you need to periodically clean the lime scale and rust out of the system with LimeX.
LimeX provides an excellent method to clean equipment without expensive disassembly. In some applications, the
cleaning can be accomplished while the system is in operation. LimeX can remove scale in small, inaccessible places that
cannot otherwise be cleaned.
Other benefits to using LimeX include, but are not limited to:
1. Does not require pre-mixing; does not separate.
2. Effective-one gallon dissolves approximately 1.5 lbs. of scale.
3. Safe-no special shipping, transportation or handling required.
Gulf Sahar for Trading & Industrial Co. * P.O. Box 5266, Dammam 31422 * Kingdom of Saudi Arabia
Tel: +966(3) 811-3125 * Fax: +966(3) 811-3089
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Bio-Degradable Water Descaler
GSTIC
4. Rapidly biodegradable.
5.
6.
7.
8.
9.
Safe-no special shipping, transportation or handling required.
Changes color from amber to purple when spent (pH 5.8).
Non-Hazardous, Non-Corrosive, Non-Flammable.
Pleasant has a pleasant sassafras odor, free rinsing and low foaming.
Re-usable, if not spent.
Before
After
GSTIC Degreasers &
Descalers are
Biodegradable , and can
dispatch through normal
sewers directly…
When the solution is
spent, B.O.D. Value is less
than 6mg/L.
Why Does LimeX Change
LimeX comes in a pale yellow color that changes to a deep bluish-purple color when it is spent. There are four important
advantages to this color change:
1. You know when the solution is spent and should be discarded.
2. You don't spend time circulating a spent solution.
3. The color change occurs at a pH of 5.8 to 6.0, which is well within the safe disposal range of
most of the current governmental waste water regulations.
4. If the equipment is clean and LimeX has not changed color, you can save it and use it
again.
Made in the USA
Meets or Exceeds Regulations
Made in the USA, LimeX is non-toxic, non-corrosive, non-flammable and non-hazardous when used as directed. The
ingredients in LimeX, when spent, are not listed as hazardous waste, nor does it possess any of the hazardous
characteristics specified in 40 CRF 261. LimeX has a low B.O.D. (Basic Oxygen Demand) rating.
LimX is U.S.D.A. approved and acceptable for use as an acid cleaner in all departments of official establishments
operating under the Federal Meat, Poultry, Shell Egg Grading and Egg Products Inspection Program within the U.S.
LimeX meets all the requirements of the U.S. Department of Transportation regulations given in 173.240 (a) for
shipment without hazardous warning.
Gulf Sahar for Trading & Industrial Co. * P.O. Box 5266, Dammam 31422 * Kingdom of Saudi Arabia
Tel: +966(3) 811-3125 * Fax: +966(3) 811-3089
Page 2 of 4
Bio-Degradable Water Descaler
GSTIC
Established Estimates
Cost of 1 ampere per year
The cost savings after reducing vacuum pump motor amperage by 20 amps
Estimated cost of unscheduled downtime on a paper line in a paper mill
Percentage of paper mill’s operating annual budget dedicated to maintenance
Estimated Nash’s service charge to de-scale and service a liquid-ring vacuum pump
The cost of 2 330-gallon totes of LimeX to de-scale a Nash Model 904-R
The time it takes to clean one vacuum pump using LimeX
If LimX is not spent after a cleaning cycle can it be stored for a future cleaning
$1,000 to $1,400
At least $20,000 per year
$18,000 per minute
1%
Between $8,000 & $30,000
Approximately $6500
Between 2 to 4 hours
Yes
Liquid-Ring Vacuum Pump Cleaning
Purpose: To remove most water-formed deposits
including calcium, lime, rust, mud, etc., from the rotor,
hub, cones and casing.
PROCEDURE:
1.
Record the current vacuum pump operating amperage.
2.
Take unit out of service.
Remove bottom & top plugs, and allow all water to drain
from the unit. Attach the inlet hose to the bottom and a
return hose to the top for circulation of LimeX water
scale solvent.
3.
4.
Insert blanks ‘pancakes’ in flanges of discharge and
suction piping, and check to make sure that the pump is
isolated so that no LimeX is wasted.
5.
Add the prescribed amount of LimeX and circulate for the
prescribed amount of time. See attached table.
Tighten vacuum pump seal packing to minimize
leakage.
Paper
mill
After the prescribed circulation time, shut off the
circulation pump and disconnect the return hose and put
all fluid to drain.
6.
7.
De-
8. The exception to #7 above is if you are using full capacity and full strength LimeX, check the strength of
the LimX and return to containers for future use.
9.
Flush the unit with water for 10-15 minutes and reset the vacuum pump seal packing to the correct
setting.
10. Return vacuum pump to service.
11. After the pump has stabilized, record the current operating amperage and compare it to the
amperage prior to cleaning.
12. The amperage readings should be kept and used for scheduling future cleanings of the vacuum pump
with LimX.
Gulf Sahar for Trading & Industrial Co. * P.O. Box 5266, Dammam 31422 * Kingdom of Saudi Arabia
Tel: +966(3) 811-3125 * Fax: +966(3) 811-3089
Page 3 of 4
Bio-Degradable Water Descaler
GSTIC
scaling Application:
1.
2.
3.
4.
5.
Refinery De-Scaling Application:
1. Exchangers
2. All type crackers
3. Converters
4. Air & Gas Compressors.
Vacuum Pumps & Filters
Calendar Rolls
Mill Rolls
Liquor Tanks
Pulverizes
5. Pumps Piping
Able of Prescribed Volumes & Circulation Time
NASH PUMP
MODEL
EXAMPLES
CL – 1000
CL – 1500
CL – 2000
CL – 3000
CL – 4000
H – 10
CL – 6000
CL – 9000
904 – P.L.M
904 – R
L – 10
904 – S
904 – T
CL – 14000
904 – U
HP OF ANY
MANUFACTURER
100% LimeX
(GAL)
CIRCULATIONS
TIME HOURS
< 60
< 70
< 125
< 175
< 225
< 250
< 325
< 500
< 500
< 600
< 650
< 700
< 750
>700
>700
100
110
120
160
180
230
330
480
480
580
640
880
1020
1500
1650
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
2-4
Note: If 50:50 mix of LimeX to water is used the circulation time should be doubled to approximately 4-8 hours due to the
dilution.
Gulf Sahar for Trading & Industrial Co. * P.O. Box 5266, Dammam 31422 * Kingdom of Saudi Arabia
Tel: +966(3) 811-3125 * Fax: +966(3) 811-3089
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