DOUBLE WALL CORRUGATED (DWC) HDPE PIPES
[CODE NO.4028]
It is a double layer pipe with the outer layer having corrugation and the inner layer with a smooth surface. The outer corrugated layer substantially increases the stiffness of the pipe, which enables the pipe to take same burial load at a fraction of the weight of Solid wall pipes of the same size.
It is a technically superior and cost effective solution for drainage and sewerage systems over conventional DI & RCC pipes with a steep reduction in installation time and equipment hiring cost. These pipes are available in sizes ranging from 100mm DN/ID to 1200mm DN/ID having ring stiffness ranging from SN2.5 to SN16. Inner layer can be in different colours, with the outer layer in black colour.
There are manufactured as per following standards.
• IS 16098 Part II
• ISO-21138 Part III
• IS-14930
• BS EN 50086
QUALITY TESTS PERFORMED
• Density Test
• Mass Melt Flow Rate Test
• Ring Flexibility
• Ring Stiffness
• Impact Strength
• Water Tightness
• Thermal Stability
• Creep Ratio (Oxidation Induction Test)
COST ESTIMATION
Plant Capacity 20 MT/Day
Land & Building (8000 sq.mt.) Rs. 6.64 Cr
Plant & Machinery Rs. 4.62 Cr
Working Capital for 1 Month Rs. 5.34 Cr
Total Capital Investment Rs. 16.91 Cr
Rate of Return 29%
Break Even Point 52%
INTRODUCTION
THERE ARE MANUFACTURED AS PER FOLLOWING STANDARDS.
QUALITY TESTS PERFORMED
DIMENSIONS OF DWC PIPE
DWC PIPE FOR NEW GENERATION
ADVANTAGES OF DWC PIPES
THERE ARE NUMEROUS OTHER FEATURES OF DWC PIPES & THOSE ARE:
USES OF DWC HDPE PIPES
MERITS OF DWC HDPE PIPES
MERITS OF DWC HDPE PIPES:
B.I.S. SPECIFICATION
PRODUCTION TECHNOLOGIES OF DWC PIPE
SINGLE WALL PIPE
DUAL/DOUBLE WALL PIPE
QUALITY CONTROL FOR HDPE
CORRUGATED PIPE STANDARDS AND SN / SR COMPARISON
POINTS TO BE TAKEN INTO CONSIDERATION
PIPE AND ARTICULATION COMPONENT TESTS
TECHNICAL PROPERTIES OF PE CORRUGATED PIPES
TABLE: TECHNICAL PROPERTIES OF CORRUGATED PIPES
DOUBLE WALL CORRUGATED PIPES
DIMENSIONS AND WEIGHTS FOR STANDARD DOUBLE WALL CORRUGATED
PIPES, WITH AN INTEGRATED COUPLING SLEEVE
RECENT PROJECTS - CORRUGATED PIPES, FITTINGS, MANHOLES,
INSPECTION CHAMBERS, DRAINAGE PIPES
COMPARISON OF CORRUGATED PIPE WITH OTHER CONVENTIONAL PIPES
CORRUGATED PIPE VERSUS SOLID WALL PIPE
CORRUGATED VERSUS SPIRAL PIPE
TECHNICAL DETAILS OF CORRUGATED PIPE
TYPICAL PRODUCT SPECIFICATION:
DOUBLE CORRUGATED PIPE WALL STRUCTURE
PIPES ENDS
HYDRAULIC SEALING
FITTINGS
MANUFACTURING PROCESS DESCRIPTION:
TESTING
PROCESS EQUIPMENT
TECHNICAL DATA:
II. DIE HEAD
III. FORMING MACHINE
IV. SPRAY BATH
V. CUT-OFF UNIT
VI. STACKER
E: MECHANICAL PARTS
MATERIAL OF BARREL & SCREW 38CRMOLAA WITH NITROGEN TREATMENT
II. EXTRUSION DIE HEAD
III. SBZ1000 FORMING MACHINE
IV. SPRAY BATH
V. CUT-OFF UNIT
VI. STACKER
MARKET OVERVIEW OF HDPE PIPES
PRODUCTION OF HDPE IN INDIA
CONSUMPTION OF HDPE IN INDIA
IMPORT OF HDPE
PRESENT MANUFACTURERS/SUPPLIERS OF DWC HDPE PIPES
HDPE/PP/PVC DOUBLE WALL CORRUGATED PIPE PRODUCTION LINE
MANUFACTURING PROCESS
PREPARATION OF RAW MATERIAL (RM)
APPROVAL OF RM FOR PURCHASE ORDER
RECEIVING / STORAGE
IF THE LOT IS COMPLIANT, IT IS STORED AND REGISTERED.
MIXTURE
PHASE II
EXTRUSION
PHASE III
CORRUGATION
THIS RECENT TECHNOLOGY IS UNDER STUDY.
PHASE IV
CALIBRATION
PHASE V
FINISHING AND PACKAGING
CONTROLS AND TESTS
TECHNICAL REQUIREMENT OF DOUBLE WALLED CORRUGATED (DWC)
HDPE DUCT
SCOPE:
REQUIREMENTS:
GENERAL INFRASTRUCTUR:
QUALITY CONTROL:
ESSENTIAL MACHINERY & PLANT REQUIRED FOR PRODUCTION:
REQUIRED ESSENTIAL MACHINERY & PLANT SHALL BE AS FOLLOWS:-
ESSENTIAL TESTING EQUIPMENTS REQUIRED FOR QUALITY ASSURANCE
REQUIRED ESSENTIAL TESTING EQUIPMENTS SHALL BE AS FOLLOWS:-
QUALITY ASSURANCE FLOW CHART FOR DWC HDPE DUCT
JOINING SYSTEM AND INSTALLATION OF DWC PIPES
JOINTING PROCEDURE
CONSTRUCTION OF BACKFILL ENVELOPE AND BACKFILLING OF THE TRENCHES
TRANSPORTATION, HANDLING AND STORAGE OF DWC PIPES
TRANSPORTATION OF DOUBLE-WALL PIPE TO THE WORKSHOP
STORAGE AND MAINTENANCE OF DOUBLE-WALL CORRUGATED PIPE
INSTALLING DOUBLE-WALL CORRUGATED PIPES
SUPPLIERS OF PLANT AND MACHINERY
SUPPLIERS OF PLANT AND MACHINERY (IMPORTED)
COMPLETE PLANT SUPPLIERS [IMPORTED]
COMPLETE DOUBLE WALL CORRUGATED HDPE PIPE MAKING PLANT & EQUIPMENTS SUPPLIERS
SUPPLIERS OF AIR POLLUTION CONTROL EQUIPMENTS
SUPPLIERS OF EOT CRANES
SUPPLIERS OF DG SETS
SUPPLIERS OF POWER TRANSFORMERS
SUPPLIERS OF COOLING TOWER
SUPPLIERS OF ETP PLANTS
SUPPLIERS OF MEASURING AND TESTING INSTRUMENTS
SUPPLIERS OF RAW MATERIALS
SUPPLIERS OF HDPE RESIN
SUPPLIERS OF HDPE GRANULES
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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