DI VALVE
[CODE NO 4015]
What is Valve
A valve is a device that regulates, controls, or directs the flow of a fluid by opening, closing, or partially obstructing fluid flow. A sound bit complicated? Ok, let me further simplified this. A valve is a mechanical device that controls the flow and pressure of fluid within a system or process. So basically, it controls flow & pressure.
Valves Perform Different Functions:
• Start-stop flow (on-off or isolation valves or block valves)
• Regulate flow
• Prevent flow reversal (Check valves/Stop-check valves)
• Throttling flow (control flow rate wrt. feedback from process variables - resulting in Pressure, Temperature and Level control in a system or process)
• Prevent overpressure in piping system (Pressure Relief Safety Valves)
Component of Valves
Regardless of types, all valves have the following basic parts
• Body
• Gasket
• Bonnet
• Packing
• Trim consisting of seat, closure member and stem
• Operating mechanism
Body
The body forms the primary pressure boundary of a valve and holds all the components in position. Most of the valves require an opening across the body to assembly the closure member, seat and other parts inside the valve. In order to assembly all these parts the body is partitioned to provide an opening.
Bonnet
The cover for the opening in the valve body is the bonnet. The bonnet is the second principal pressure boundary of a valve. It is cast or forged of the same material as the body and is connected to the body by a threaded, bolted, or welded joint. In check valve, it is called as cover.
Valve Trim
The sealing components of valve are called as trim of the valves. They consists of seat, closure member and stem. These components requires higher hardness, corrosion and erosion resistant properties to give long trouble-free performance of valves.
COST ESTIMATION
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%
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 – 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)
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