WATER TANKS
VMP HOLDING has developed the coating systems based on zinc-rich primers for corrosion protection of tanks and equipments for potable water supply, hot and cold water systems:
- tanks for potable water;
- water tanks;
- decarbonising tanks;
- deairing columns.
VMP coating systems passed the total industrial certification and are included to the normative documents:
- Practical recommendations for water tank corrosion protection and water protection from airing RD 153-34.1-40.504-00;
- Manual for choice and application of coatings for marine tanks of potable and bath water YAKUT 25-055-2000 (CNIIMF);
- Manual for corrosion protection of internal surface of ballast water system and tanks YAKUT 25-069-2001 (CNIIMF);
- Recommendations of Gosstroy of Russia (SNIP 2.03.11-85).
ZFES coating has the State Registration Certificates for application in the hot water supplying systems for internal surface of tanks, piping and other equipments contacted with hot water (№№ 66.01.31.001.P.002576.08.07, 66.01.04.000.Т.000130.06.05).
Coating systems for water tanks with cold water
| Trade name |
Quantity of coats |
Dry film thickness, microns |
|
4 |
140-160 |
| Total film thickness |
140-160 |
|
2 |
80-100 |
|
2 |
40-80 |
| Total film thickness |
140-160 |
Coating systems for water tanks with hot water
| Surface condition before coating application |
Corrosivity category* |
Coating system |
Expected durability **, years, not less |
| New tanks |
low |
ZFES № 2, 4 coats (140-160 microns) |
4-6 |
ZFES № 2, 4 coats (160-180 microns) |
6-8 |
| high |
ZFES № 2, 4 coats (160-180 microns) |
4-6 |
ZFES № 2, 5 coats (180-200 microns) |
6-8 |
| Repaired tanks |
low |
ZFES № 2, 4 coats (160-180 microns) |
4-6 |
ZFES № 2, 5 coats (180-200 microns) |
6-8 |
| high |
ZFES № 2, 5 coats (180-200 microns) |
3-6 |
* water is supposed high corrosive if oxygen concentration is more than 50 μg/l, carbon dioxide concentration is more than 10 μg/l, Langelier's Index is negative, рН is not more than ZFES coating limits..
** surface preparation is 2 degree by GOST 9.402-2004 (Sa 2½, ISO 8501-1:2007).
References: hot water tanks of Kurskaya, Khabarovskaya, Ulyanovskaya and other heat electropower station.
