Industry Overview
Valves are mechanical devices used to regulate, control, isolate, or direct the flow and pressure of fluids within piping systems and industrial processes. Depending on their design and application, valves can start or stop flow, regulate flow rates, prevent flow reversal, provide throttling control, and protect piping systems from excessive pressure.
A valve generally consists of a body, bonnet, gasket, packing, valve trim, and an operating mechanism. The valve body forms the primary pressure boundary and houses the internal components, while the bonnet provides access to the internal assembly and forms another important pressure boundary. Valve trim includes the seat, closure member, and stem, which require suitable hardness and resistance to corrosion and erosion for reliable service.
The valve industry includes various designs such as gate valves, non-return or check valves, and butterfly valves. Manufacturing typically involves procurement of raw materials, machining, lapping, assembly, pressure testing, finishing or painting, inspection, packing, and dispatch. Valves are widely used across industrial plants and fluid-handling systems, making appropriate material selection, manufacturing quality, testing, and inspection important considerations for dependable operation.
Cost Estimation
| Particulars | Value |
|---|---|
| Plant Capacity | 400 MT/Day |
| Land & Building (2500 sq.mt.) | Rs. 2.58 Cr |
| Plant & Machinery | Rs. 2.09 Cr |
| Working Capital for 2 Months | Rs. 160.50 Cr |
| Total Capital Investment | Rs. 165.40 Cr |
| Rate of Return | 52% |
| Break Even Point | 22% |
Content Index
- INTRODUCTION
- WHAT IS VALVE
- VALVES PERFORM DIFFERENT FUNCTIONS:
- COMPONENT OF VALVES
- REGARDLESS OF TYPES, ALL VALVES HAVE THE FOLLOWING BASIC PARTS
- BODY
- BONNET
- VALVE TRIM
- SEAT
- CLOSURE MEMBER
- STEM
- GASKET
- PACKING
- OPERATING MECHANISM
- MANUAL OPERATION
- GEAR OPERATION
- POWER OPERATION
- ACTUATORS
- ELECTRIC ACTUATORS
- PNEUMATIC ACTUATORS
- HYDRAULIC ACTUATORS
- TYPES OF VALVES
- (1) GATE VALVE
- GATE VALVE PARTS
- SPECIFICATION OF GATE VALVE
- TYPES OF GATE VALVES
- THERE ARE THREE WAYS TO CLASSIFY THE GATE VALVE.
- 1. TYPES OF DISK
- 2. TYPES OF BODY BONNET JOINT
- 3. TYPES OF STEM MOVEMENT
- ADVANTAGES OF GATE VALVE
- DISADVANTAGES OF GATE VALVE
- (2) NON –RETURN VALVE/CHECK VALVE
- PARTS OF NON-RETURN VALVE
- TYPES OF CHECK VALVES
- BALL TYPE AND PLUG TYPE LIFT NRV
- DUAL PLATE / DUAL DISC CHECK VALVE
- SPECIFICATION OF CHECK VALVE
- ADVANTAGES & DISADVANTAGES
- (3) BUTTER FLYVALVE
- APPLICATIONS
- ADVANTAGES
- DISADVANTAGES
- USES AND APPLICATION
- USES AND APPLICATION OF GATE VALVE
- USES AND APPLICATION OF CHECK VALVE (NRV)
- USES AND APPLICATIONS OF BUTTERFLY VALVE
- B.I.S. SPECIFICATION
- PROCESS FLOW CHART
- MANUFACTURING PROCESS
- PROCUREMENT OF RAW MATERIALS
- MACHINING
- LAPPING
- BONNET
- ASSEMBLY
- TESTING
- PRESSURE TEST
- FIGURE: EQUIPMENT OF PRESSURE TEST
- FINISHING/PAINTING
- FINAL INSPECTION
- PACKING
- DISPATCH
- MARKET POSITION
- KEY TARGET AUDIENCE:
- PLANT LAYOUT
- SUPPLIERS OF DI VALVE
- SUPPLIERS OF RAW MATERIALS
- SUPPLIERS OF DI CASTING
- SUPPLIERS OF BRASS CASTING
- SUPPLIERS OF CUTTING FLUIDS
- SUPPLIERS OF EPOXY COATING POWDER
- SUPPLIERS OF PLANT AND MACHINE
- SUPPLIERS OF CNC LATHE MACHINE
- SUPPLIERS OF CNC MACHINING CENTRE
- SUPPLIERS OF METAL TESTING MACHINE
- SUPPLIERS OF GRINDING MACHINE
- SUPPLIERS OF DRILLING, LATHE, TAPING MACHINES
- SUPPLIERS OF METAL TESTING MACHINE
- SUPPLIERS OF PRECISION MEASURING TOOLS
- SUPPLIERS OF NDT INSPECTION EQUIPMENT
- SUPPLIERS OF ELECTRICAL MEASURING INSTRUMENTS
- SUPPLIERS OF DG SETS
- SUPPLIERS OF EOT CRANES
- SUPPLIERS OF POWER TRANSFORMERS
- SUPPLIERS OF ELECTRICAL PANEL
- SUPPLIERS OF ELECTRIC MOTOR
- SUPPLIERS OF COOLING TOWER
- SUPPLIERS OF EFFULENT TREATMENT PLANT (ETP PLANT)
- SUPPLIERS OF AIR POLLUTION CONTROL EQUIPMENTS
- SUPPLIERS OF AIR CONDITIONING EQUIPMENTS
- SUPPLIERS OF AIR COMPRESSORS
- SUPPLIERS OF PLATFORM WEIGHING MACHINE
- SUPPLIERS OF MATERIAL HANDLING EQUIPMENTS
- SUPPLIERS OF FIRE FIGHTING EQUIPMENTS
- SUPPLIERS OF SHOT BLASTING MACHINE
- SUPPLIERS OF JIGS AND FIXTURE
- SUPPLIERS OF SUBMERSIBLE WATER PUMP
Appendix
- 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)
Frequently Asked Questions
A valve is a mechanical device used to control the flow and pressure of fluids in a piping or process system.
Depending on its design, a valve can start or stop flow, regulate flow rate, isolate equipment, prevent reverse flow, provide throttling, or protect a piping system against excessive pressure. Valve selection depends on the fluid, operating conditions, pressure, temperature, required flow control, and the intended industrial application.
The main components of a valve include the body, bonnet, gasket, packing, valve trim, and operating mechanism.
The body provides the primary pressure boundary and supports the internal components. The bonnet closes the body opening and forms another pressure boundary. Valve trim generally includes the seat, closure member, and stem. Gaskets and packing provide sealing, while the operating mechanism enables the valve to be manually or mechanically operated.
The report covers gate valves, non-return or check valves, and butterfly valves.
Gate valves are commonly associated with isolation and on-off service, while check valves are designed to prevent reverse flow. Butterfly valves use a rotating disc for flow isolation or control and can be used in a range of fluid-handling applications. The appropriate valve type depends on system requirements, including flow characteristics, pressure, temperature, installation conditions, and required operating function.
Valve manufacturing generally involves raw material procurement, machining, lapping, assembly, testing, finishing, inspection, packing, and dispatch.
The report specifically identifies procurement of raw materials, machining, lapping, bonnet-related operations, assembly, pressure testing, finishing or painting, final inspection, packing, and dispatch. Manufacturing requirements vary according to valve design, materials, dimensions, service conditions, applicable specifications, and quality-control requirements.
Pressure testing is important because it helps verify the pressure-containing and sealing performance of a manufactured valve.
Testing can identify leakage, inadequate sealing, or defects in pressure-boundary components before the valve is placed into service. The applicable test method, pressure, duration, acceptance criteria, and inspection requirements should be established according to the relevant valve specification, design requirements, and intended service conditions.
Valve operating mechanisms can include manual, gear, and powered operation.
The report also covers actuators, including electric, pneumatic, and hydraulic actuators. Manual operation is suitable where direct operator control is practical, while gear mechanisms can assist with operation where greater mechanical advantage is required. Powered actuators can enable remote or automated operation and may be selected according to process-control requirements, available utilities, operating environment, and valve characteristics.
A valve manufacturing plant may require suppliers for production machinery, testing equipment, material handling systems, utilities, and supporting infrastructure.
The report identifies supplier categories covering CNC lathes, CNC machining centres, grinding machines, drilling and tapping machines, metal testing machines, precision measuring tools, NDT inspection equipment, electrical instruments, EOT cranes, DG sets, transformers, electrical panels, compressors, cooling towers, ETP equipment, air pollution control equipment, fire-fighting equipment, shot blasting machines, jigs and fixtures, and other plant utilities and material-handling equipment.
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