2. RAJAN RAHEJA GROUP Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
RAJAN RAHEJA GROUP
THE STEPPING STONE TO YOUR SUCCESS

3. The offering of include a complete range of vitrified tiles.
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
H & R Johnson (India), A Division of Prism Cement Limited is a part of the Rajan Raheja Group
The company has strong brands comprising of Johnson, Marbonite, Endura & Johnson Ceramics International.
offers glazed floor and wall tiles, laminate and engineered wood floorings, kitchen, sanitaryware, bathroom accessories and bath fittings.
The offering of include a complete range of vitrified tiles.
brand offers industrial, specialised tiles and industrial products
THE STEPPING STONE TO YOUR SUCCESS

4. LEAD-ACID BATTERIES SAFETY
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
LEAD-ACID BATTERIES
SAFETY
Hydrogen gas is generated during the charging cycle
Only 4% of Hydrogen in air is enough to start catastrophic ignition
Effective dispersion of hydrogen is a serious safety concern
MAINTAINING ELECTROLYTE LEVELS
Higher outgassing would result in greater electrolyte loss
Frequent watering could increase the chances of contamination of the electrolyte
Variation in electrolyte levels could affect the battery performance
THE STEPPING STONE TO YOUR SUCCESS

5. ZERO MAINTENANCE BATTERIES
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
ZERO MAINTENANCE BATTERIES
Zero-maintenance batteries have revolutionized the lead - acid battery industry
One of the key components is a flame arrestor with tailored pore size and pore volume
THE STEPPING STONE TO YOUR SUCCESS

7. FLAME ARRESTORS KEY FUNCTIONS
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
FLAME ARRESTORS
KEY FUNCTIONS
Venting: Tailored pore size and pore volume ensures controlled venting of gases, heat developed especially during charging, preventing the build-up of gases that can otherwise lead to explosion.
POLYMER
CERAMIC
Manufactured by fusion technique, pore size and pore volume can vary significantly
Bond formation is by sintering, and not fusion; the pore size and pore volume can be controlled precisely
Variation in pore size and pore volume can significantly affect the permeability.
Uniform pore size and porosity leads to precise permeability
Pore volume 30 – 35%
Pore volume 45 – 50%
Pore size 100 – 200 microns
Pore size 150 – 200 microns
THE STEPPING STONE TO YOUR SUCCESS

9. FLAME ARRESTORS KEY FUNCTIONS
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
FLAME ARRESTORS
KEY FUNCTIONS
Flame arresting:  In an event of sparking outside a battery, they prevent the propagation/ ingress of flame from outside to inside by its matrix of uniform pores that quench the flame. This provides an extinguishing barrier to the ignited flame.
THE STEPPING STONE TO YOUR SUCCESS

11. FLAME ARRESTORS KEY FUNCTIONS
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
FLAME ARRESTORS
KEY FUNCTIONS
Zero top-up: Small & uniform pores along with the water repellent property prevents depletion of electrolyte through the pores. Water vapour condenses and falls back into the battery.
THE STEPPING STONE TO YOUR SUCCESS

12. Strength POLYMER CERAMIC Limited strength
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
Strength
POLYMER
CERAMIC
Limited strength
Crushing strength is 150 – 200 kg/cm2.
Can be easily inserted without breakage
THE STEPPING STONE TO YOUR SUCCESS

13. Resistance to sulphuric acid
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
Resistance to sulphuric acid
POLYMER
CERAMIC
Polypropylene is susceptible to liquid oxidative degradation leading to charring and brittle failure
The ceramic bond is formed by sintering at very high temperatures, and not by alkali fusion.
The absence of alkali makes the ceramic discs highly resistant even to highly corrosive strong acids even at elevated temperatures.
THE STEPPING STONE TO YOUR SUCCESS

14. Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
CONCLUSIONS
Owing to its higher pore volume and uniform permeability, it is possible to reduce the number of vents
Excellent corrosion resistance of ceramics could translate into a much lower battery maintenance and higher battery life. Number of warranty claims could come down as a result
SAFETY IS GUARANTEED UNDER EXTREME CIRCUMSTANCES !
Much better safety and improved performance could result in an increased market share for the battery manufacturer
THE STEPPING STONE TO YOUR SUCCESS

15. STONE TO YOUR SUCCESS THE STEPPING
Industrial Products & Natural Resources
H & R JOHNSON (INDIA)
( A DIVISION OF PRISM CEMENT LIMITED.)