| Vendors: | Ecolab | Nalco Company |
United Worth Hydrochem |
Wesco Chemicals |
|
| I. | Chilled Water Closed Loop Chemicals-Program for "Tight" Closed Loops: | ||||
| 1 | Generic Type: Nitrite | ||||
| 1a | Program Name/No. | Multi Guard 3107 |
Nitrite- Nalco 2833 |
S-539 | WES 26C |
| 1b | Manufactuer's recommended dosage-lbs. per 1,000 gallons of make-up water | 1.8 gal/ 1,000 g. |
26# | 8 lbs. | 9.35 lbs. |
| 1c | Cost per pound of Products: | $2.90/lb. | $5.15/lb. | $1.88 | $1.49/lb. |
| 1d | Cost to treat 1,000 gallons of chilled water: | $51.23 | $133.90 | $15.04 | $13.93 |
| 1e | Cost to treat 80,000 gallons of make-up water | $4,098.05 | $10,712.00 | $1,203.20 | $1,393.00 |
| 1f | Percent of total active ingredients in product: | 23% | 33.73% | 41.00% | 18.50% |
| 2 | Corrosion inhibitor/anti-scalant | ||||
| 2a | Generic Type: Nitrite | Nitrite- Borate- Triazole (3107) |
Polymetic Dispersant |
Nitrite-TT | Included in WES 26C |
| 2b | Recommended ppm as nitrate in system: | 400-600 ppm |
300-500 ppm as NO2 |
500 | 400 ppm- cold 500 ppm- hot |
| 2c | Manufacturer's recommended dosage rate per 1,000 gallons of chilled water | 1.8 gal/ 1,000 g. |
same as above |
8 lbs. | 9.35 lbs. |
| 2d | Percent of nitrite (NO2) in product: | 19.00% | 24.40% | 32.00% | 15.00% |
| 3 | Copper Corrosion Inhibitor | ||||
| 3a | Generic Type: TT | yes | Tolyltriazole | 2 | n/a |
| 4 | Product shall also contain pH control and a uniform agent | ||||
| II | Cooling Tower Chemicals | ||||
| 1 | Corrosion Inhibitor/Anti-scalant | ||||
| 1a | Program Name/No. | Cooling Care 8021 |
Nalco 23265 |
C-1340 | WES 388T |
| 1b | Manufactuer's recommended dosage-lbs. per 1,000 gallons of water (based on 5 cycles of concentrated) | .25#/1000 g. | .17#/1,000 gal |
.15 lb. | .69 lbs. |
| 1c | Cost per pound of Products: | $3.50/lb. | $5.44/lb. | $1.98 | $1.56/lb. |
| 1d | Cost to treat 1,000 gallons of make-up: | $0.88 | $0.93 | $0.30 | $1.07 |
| 1e | Cost to treat 11,625,000 gallons of water | $10,253.25/ 11,625,000 gal. |
$10,811.25 | $3,487.50 | $12,438.75 |
| 1f | Percent of total ingredients: | 15.00% | 25.00% | 38.00% | 40.00% |
| Maximum temperature range (deg. F) | |||||
| 1g | Into Exchanger (deg. F) | 110 degrees | 95 degrees | 85 degrees | 85F-90F |
| 1h | Out of Exchanger (deg. F) | 120 degrees | 85 degrees | 105 degrees | 110F-120F |
| 1i | Cycles of concentration based on chlorides | five | 5 | 5-8 | 5 as per specifications |
| 2 | |||||
| 2a | Product Name/No. | Cooling Care 8021 |
Nalco 23265 |
S-544 | Included in WEST 388T |
| 2b | Recommended ppm residual in system | 4-6 | 100-120 ppm | 30 ppm | 3-8ppm |
| 2c | Recommended dosage rate per lb. for 1,000 gallons of make-up water |
same as above | 1/4 | .69 lbs. | |
| 2d | Percent of active phosphate in product | already included (1B) |
16.20% | 26.00% | 10.00% |
| 3a | Scale Inhibitor/Dispersant (if required) Generic Type: Synthetic Polymer |
not required | high stress polymer (HSP) |
D-600 | Included in WEST 388T |
| 4a | Copper Corrosion Inhibitor Generic Type: TT |
already included (1B) |
Bensotriazole (BZT) |
Included in WEST 388T |
|
| 5 | Microbiocide General Type: Isothiazalone | ||||
| 5a | Program Name/No. | WCS 102 | Nalco 90005 | A-777 | WES 625 WES 615 WES 618 |
| 5b | Cost er pound of product: | $3.50/lb. | $8.32/lb. | $2.95/lb. | $4.95/lb. $2.02/lb. $1.84/lb. |
| 5c | Cost to treat 1,000 gallons of make-up water: | $0.10 | $6.49/ 1,000 gals. |
$0.97 | $2.52 $.66/lb. $1.21 |
| 5d | Recommended dosage rate per lbs/1,000 gallons: | 1.25# | .78#/1,000 gals. |
$0.33 | .51/ lb. .33/ lb. .66/ lb. |
| 5e | Percent of active ingredients: | 1.50% | 50.00% | 30.00% | 1.5% 15% 12.5% |
| 6 | Microbiocide Generic Type: Oxidizing | ||||
| 6a | Program Name/No. | XY-12 | Nalco 960 | A-780 | WES 600 |
| 6b | Cost per pound of product to treat 1,000 gallons of make-up ater: | $.11/1,000 gal make-up |
$6.24/1,000 gals. | $7.89 | $1.40/lb. |
| 6c | Recommended dosage rate on lbs./1,000 gallons | .25#/1,000 gal. |
.5#/1,000 gals. |
1/5 lbs. | .2 lb. |
| 6d | Percent of active ingredients: | 8.40% | 97.00% | 100.00% | 96.00% |
| 7a | State discount off list price for parts sold by your company that may be required for the water treatment program (i.e., pot feeders, filters, etc.) | 10.00% | 8.00% | no bid | 5.00% |
| NO BIDS: | |||||
| Teaching Systems, Inc. | |||||
| Trane Company | |||||