Detailed Project Report on Automotive Tyre and Tube Valves (Valves Manufacturing)

AUTOMOTIVE TYRE AND TUBE VALVES (VALVES MANUFACTURING)

[EIRI/EDPR/1562] J.C. 357

INTRODUCTION

Valves are components used in automobile tubes through which the air is inflated in the tube. The design of these valves is such that they function as non-return valves. In other words they allowed the compressed air to flow inside the tube, but do not allow the air inside the tube to flow out.

Valves consist of four parts as such which are valve body, valve check nut and the valve nut. It is all made out of brass to make it rust proof which is necessary since the use of automobile in all the seasons and they have to pass through all types of rods both dry and wet. Keeping the cost and utility in view brass has been considered as the best material. As regards the use of valves they find their use in automobile tubes.

Valves

(Tubeless rubber “snap-in” type).

Valves are one-way seals that allow us to inflate tyres and check inflation pressures without losing too much air.

There are different sizes, shapes and types of valves available. It is important to recognise the importance of this often neglected component of the wheel assembly. A leaking valve can cause tyre failure with the minimum consequence being the purchase of a new tyre.

Valves consist of three parts, the body, the core and the cap.

The Valve Cap

Metal valve caps which incorporate rubber seals are specially constructed to act as effective seals so that, when applied finger-tight, they will hold 1700 kPa. No dirt can enter and no air can escape. The valve cap – not the valve core – is regarded by the manufacturers of valves to be the primary seal. This simple fact must be considered to be one of the most important points concerning the prevention of tyre failure in this entire book. One-piece plast : caps act as dust covers only.

The Valve Core

The valve core opens and closes many times during the life of the valve. Seals are subject to wear and deterioration caused by dirt and oil from airlines etc. The valve core provides an automatic seal which will hold 1700 kPa. Worn cores are interchangeable but remember, they are designed for only one insertion. For speeds higher than 160 km/h, metal valve caps are doubly essential because the core may lift off its seating and allow air to escape.

The Valve Body

The internal metal body is threaded to take any standard valve cap and fits all standard inflation and service devices for passenger vehicles. The two most common sizes used are the TR. 414 and the longer TR. 418 – which is useful on wheels with wheel-covers or hubcaps.

Metal or Alloy “Clamp-in” Valves

These valves function in the same way as the rubber valves but are recommended for use on high performance vehicles where they remain rigid and unaffected by the increased centrifugal forces created by extremely high rotational speeds. It is also recommended that minibus-taxis use this type of valve due to the high inflation pressures their tyres require.

Certain alloy wheel valve-hole designs are only able to have this type of valve fitted and caution must always be exercised when selecting valves for these rims. Clamp-in valves are available either with a 16mm hexagonal head or screwdriver slot on the base to facilitate easy fitting and removal.

COST ESTIMATION

Plant Capacity            50,000 Nos/Day

Land & Building (1000 sq.mt.)    Rs. 1.55 Cr

Plant & Machinery                    Rs. 1.26 Cr

Working Capital for 3 Months    Rs. 8.43 Cr

Total Capital Investment          Rs. 11.53 Cr

Rate of Return                          32%

Break Even Point                      46%

CONTENTS

INTRODUCTION

USES AND APPLICATION

B.I.S. SPECIFICATIONS

MARKET SURVEY

PEER COMPARISON

LIST OF THE CLIENTS/BUYERS FOR VALVES

MANUFACTURERS/SUPPLIERS/EXPORTERS OF VALVES

SPECIFICATION OF TYRE VALVES

TECHNICAL SPECIFICATIONS

PROCESS OF MANUFACTURE

FLOW DIAGRAM

QUALITY CONTROL

BUREAU OF INDIAN STANDARDS

INDIAN STANDARD

SUPPLIERS OF RAW MATERIALS

SUPPLIERS OF PLANT AND MACHINERY

APPENDIX – A:

01. PLANT ECONOMICS

02. LAND & BUILDING

03. PLANT AND MACHINERY

04. OTHER FIXED ASSESTS

05. FIXED CAPITAL

06. RAW MATERIAL

07. SALARY AND WAGES

08. UTILITIES AND OVERHEADS

09. TOTAL WORKING CAPITAL

10. TOTAL CAPITAL INVESTMENT

11. COST OF PRODUCTION

12. TURN OVER/ANNUM

13. BREAK EVEN POINT

14. RESOURCES FOR FINANCE

15. INSTALMENT PAYABLE IN 5 YEARS

16. DEPRECIATION CHART FOR 5 YEARS

17. PROFIT ANALYSIS FOR 5 YEARS

18. PROJECTED BALANCE SHEET FOR (5 YEARS)