Designed for borewell contractors, farmers, project engineers and dealers working on borewell and tubewell projects across India.
Duke uPVC casing pipes are designed to provide a stable casing system for borewell and tubewell applications. The current technical range includes multiple casing and screen configurations with detailed specifications for nominal diameter, actual outside diameter, wall thickness, connection diameter, thread length and screen parameters.
The correct casing pipe should be selected according to the bore design, actual pipe dimensions, geological conditions and screen requirement—not by nominal inch size or price alone.
Relevant Indian Standard: IS 12818:2010 covers PVC-U screen and casing pipes for bore/tubewells.
Manufacturer: Duke Pipes Private Limited, Gujarat, India
Manufacturing piping solutions since: 1998
CTA: View Technical Specifications
CTA: Request Current Price
A uPVC casing pipe is installed inside a drilled borewell or tubewell to provide a stable lining for the bore. Plain casing is generally used where structural support is required, while screen sections allow groundwater to enter through designed openings in selected water-bearing zones.
uPVC is commonly used for borewell casing because it does not suffer from conventional metal rusting, is comparatively lightweight and can be manufactured in different sizes and casing or screen configurations.
The relevant Indian Standard for this product category is IS 12818:2010 — Unplasticized Polyvinyl Chloride (PVC-U) Screen and Casing Pipes for Bore/Tubewells.
Duke Pipes manufactures uPVC casing solutions with detailed technical dimensions to help contractors, project buyers and dealers select pipes according to actual borewell requirements.
uPVC does not rust like conventional ferrous metal casing, making it suitable for many underground water applications.
Its comparatively low weight helps simplify transportation, site handling and pipe lowering.
Duke casing pipes use threaded connection arrangements for joining individual pipe sections during installation.
The Duke technical range includes CS, CM and CD casing pipes along with additional configurations shown in the Technical Parameters section.
Plain casing and screen pipe options allow different sections of a borewell to perform different functions.
Duke publishes nominal diameter, mean outside diameter, wall thickness, maximum connection diameter and thread-length data so selection can be based on actual measurements rather than only nominal size.
For the water-lifting section of a borewell system, explore uPVC column pipes for submersible pumps.
Duke’s technical range includes CS, CM and CD casing pipes for different borewell requirements.
The correct series should not be selected only by price.
Before choosing a casing series, consider:
Exact depth suitability should always be checked against Duke’s latest approved technical specifications before installation.
If you are still deciding which type is suitable for your project, read our guide on how to choose the best casing pipe for a borewell.
Across Duke’s currently published technical tables, casing sizes vary by series and extend from smaller nominal diameters through DN400, depending on the configuration.
For example:
Additional R-CS, R-CM and R-CD technical tables are also available on the page.
Before ordering, always check:
This distinction is important when matching a casing pipe to a drilled bore.
A pipe commonly described as a 6-inch casing pipe is not necessarily exactly 6 inches across its outside surface.
Example: Duke’s current CS technical table lists DN150, commonly referenced as 6 inch, with a mean outside diameter of approximately 165.0–165.4 mm. Its maximum outside diameter over the connection is 174 mm.
This is why casing clearance should be calculated using the actual pipe and connection dimensions rather than the nominal inch description alone.
For a broader understanding of casing, column and other borewell components, read the complete borewell pipe guide.
The Technical Parameters section should remain a key part of this product page.
Do not convert these specification tables into images.
For clearer reading and better search-engine interpretation, use these column names consistently:
Nominal Diameter
Mean Outside Diameter (mm)
Wall Thickness (mm)
Maximum Outside Diameter Over Connection (mm)
Thread Length (mm)
Use Minimum and Maximum instead of only “min” and “max” where layout permits.
For the R-CS table, remove quotation marks from values in the millimetre column. For example, display 100 under mm and 4.0″ under inch—not 100" under mm.
Technical buyers can also download Duke Pipes technical specifications and brochures.
Duke’s current technical tables include DN165 / 6.5-inch nominal casing in CS, CM and CD configurations.
The actual dimensions vary according to series.
| Series | Nominal Size | Mean Outside Diameter | Wall Thickness | Maximum Connection OD |
|---|---|---|---|---|
| CS | DN165 / 6.5″ | 180.0–180.3 mm | 6.10–7.10 mm | 188 mm |
| CM | DN165 / 6.5″ | 180.0–180.4 mm | 8.0–8.5 mm | 196.7 mm |
| CD | DN165 / 6.5″ | 180.0–180.4 mm | 12.0–12.5 mm | 200 mm |
This comparison shows why a buyer requesting a 6.5-inch casing pipe price should also specify the required series. The nominal diameter may be the same while wall thickness and connection dimensions differ.
Plain casing and screen pipes perform different functions inside a borewell.
| Pipe Type | Main Purpose |
| Plain Casing Pipe | Provides a solid casing section where water entry through the pipe wall is not required |
| Screen Pipe | Uses designed slots/openings to allow groundwater entry in selected borewell sections |
Duke’s technical section includes screen data covering factors such as nominal diameter, number of slots, slot width, open passage area and permeability.
The screen configuration should be selected according to borewell design and geological conditions rather than simply using the same screen at every depth.
Duke’s screen tables provide more than a simple pipe diameter.
Depending on the screen configuration, technical data includes:
These values help engineers and borewell professionals compare screen configurations for different project requirements.
Any technical symbol or abbreviation used in the table, including values such as Σa ±5%, should have a short legend or definition beside the table based on Duke’s approved technical documentation.
Duke uPVC casing pipes are designed for suitable borewell and tubewell applications where a stable casing or screen system is required.
Typical use cases include:
The final casing configuration should be selected according to the site’s bore design and installation requirements.
The right casing pipe is the one that matches the technical requirements of the borewell—not simply the lowest-priced or largest available pipe.
Before requesting a quotation, confirm:
If you do not yet know the exact series, provide the project details to the Duke Pipes team so the relevant technical specifications can be reviewed.
There is no single fixed uPVC casing pipe price for every borewell project.
Price can vary according to:
Two pipes described using the same nominal inch size may therefore have different specifications and prices.
If you are searching for a 6.5-inch casing pipe price, Duke casing pipe price, or pricing for a particular pipe length, share:
Duke Pipes can then confirm current product availability and provide a more relevant quotation.
Request current uPVC casing pipe pricing.
uPVC casing installation should be carried out by experienced borewell professionals and according to the latest product instructions.
Before and during installation:
Project-specific installation decisions should always follow the applicable technical specification and site conditions.
Duke Pipes Private Limited has been manufacturing piping solutions in Gujarat, India since 1998.
For contractors, dealers and project buyers comparing a uPVC casing pipe manufacturer, useful factors include more than promotional claims.
Duke provides:
This technical information allows buyers to compare products using actual project requirements before ordering.
For current availability, technical guidance or project-specific pricing, keep these details ready:
Contact Duke Pipes for current casing pipe pricing and product guidance.
Phone: +91 73920 73920
Email: [email protected]
For complete borewell selection guidance, read Best uPVC Casing Pipe for Borewell in India.
Select the correct specification first. Compare the price second.
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100 | 4.0 | 113.0 | 113.3 | 4.60 | 5.20 | 116.0 | 48 |
| 125 | 5.0 | 140.0 | 140.4 | 5.30 | 5.60 | 148.0 | 63 |
| 150 | 6.0 | 165.0 | 165.4 | 5.70 | 6.50 | 174.0 | 63 |
| 165 | 6.5 | 180.0 | 180.3 | 6.10 | 7.10 | 188.0 | 63 |
| 175 | 7.0 | 200.0 | 200.5 | 7.00 | 7.80 | 211.0 | 63 |
| 200 | 8.0 | 225.0 | 225.5 | 7.60 | 8.80 | 238.0 | 74 |
| 225 | 9.0 | 250.0 | 250.5 | 8.80 | 9.60 | 262.0 | 74 |
| 250 | 10.0 | 280.0 | 280.5 | 9.60 | 11.0 | 292.0 | 90 |
| 300 | 12.0 | 330.0 | 330.6 | 11.2 | 13.3 | 346.0 | 90 |
| 350 | 14.0 | 400.0 | 400.7 | 14.0 | 15.5 | 420.0 | 90 |
| 400 | 16.0 | 450.0 | 450.8 | 16.0 | 17.5 | 470.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 35 | 1.25″ | 42.0 | 42.2 | 3.5 | 4.0 | 46.0 | 25 |
| 40 | 1.5″ | 48.0 | 48.2 | 3.5 | 4.0 | 52.0 | 25 |
| 50 | 2.0″ | 60.0 | 60.2 | 4.0 | 4.6 | 65.0 | 30 |
| 80 | 3.0″ | 88.0 | 88.3 | 4.0 | 4.6 | 94.0 | 40 |
| 100 | 4.0″ | 113.0 | 113.3 | 5.0 | 5.7 | 120.0 | 48 |
| 115 | 4.5″ | 125.0 | 125.3 | 5.0 | 5.7 | 132.0 | 48 |
| 125 | 5.0″ | 140.0 | 140.4 | 6.5 | 7.3 | 150.0 | 63 |
| 150 | 6.0″ | 165.0 | 165.4 | 7.5 | 8.5 | 178.0 | 63 |
| 165* | 6.5″ | 180.0 | 180.4 | 8.0 | 8.5 | 196.7 | 63 |
| 175 | 7.0″ | 200.0 | 200.5 | 8.8 | 9.8 | 215.0 | 63 |
| 200 | 8.0″ | 225.0 | 225.5 | 10.0 | 11.2 | 243.0 | 74 |
| 225* | 9.0″ | 250.0 | 250.5 | 12.0 | 12.5 | 270.0 | 74 |
| 250 | 10.0″ | 280.0 | 280.5 | 12.5 | 14.0 | 298.0 | 90 |
| 300 | 12.0″ | 330.0 | 330.6 | 14.5 | 16.2 | 352.0 | 90 |
| 350 | 14.0″ | 400.0 | 400.7 | 17.5 | 19.5 | 428.0 | 90 |
| 400 | 16.0″ | 450.0 | 450.8 | 19.5 | 21.7 | 479.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100 | 4.0″ | 113.0 | 113.3 | 7.00 | 7.90 | 125.0 | 48 |
| 115 | 4.5″ | 125.0 | 125.3 | 7.50 | 8.50 | 137.0 | 48 |
| 125 | 5.0″ | 140.0 | 140.4 | 8.00 | 9.00 | 152.0 | 63 |
| 150 | 6.0″ | 165.0 | 165.4 | 9.50 | 10.70 | 180.0 | 63 |
| 165* | 6.5″ | 180.0 | 180.4 | 12.00 | 12.50 | 200.0 | 63 |
| 175 | 7.0″ | 200.0 | 200.5 | 11.80 | 13.60 | 217.0 | 63 |
| 200 | 8.0″ | 225.0 | 225.5 | 13.00 | 14.80 | 247.0 | 74 |
| 225* | 9.0″ | 250.0 | 250.5 | 14.50 | 15.50 | 270.0 | 74 |
| 250 | 10.0″ | 280.0 | 280.5 | 16.00 | 17.6 | 304.0 | 90 |
| 300 | 12.0″ | 330.0 | 330.6 | 19.0 | 21.0 | 359.0 | 90 |
| 350 | 14.0″ | 400.0 | 400.7 | 21.5 | 23.9 | 433.0 | 90 |
| 400 | 16.0″ | 450.0 | 450.8 | 23.5 | 26.1 | 490.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100″ | 4.0 | 117.0 | 117.3 | 4.60 | 5.20 | 120.0 | 48 |
| 125″ | 5.0 | 144.0 | 144.4 | 5.30 | 5.60 | 152.0 | 63 |
| 150″ | 6.0 | 169.0 | 169.4 | 5.70 | 6.50 | 178.0 | 63 |
| 175″ | 7.0 | 204.0 | 204.5 | 7.00 | 7.80 | 215.0 | 63 |
| 200″ | 8.0 | 229.0 | 229.5 | 7.60 | 8.80 | 242.0 | 74 |
| 250″ | 10.0 | 284.0 | 284.5 | 9.60 | 11.0 | 296.0 | 90 |
| 300″ | 12.0 | 334.0 | 334.6 | 11.20 | 13.30 | 350.0 | 90 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 35 | 1.25″ | 46.0 | 46.2 | 3.5 | 4.0 | 50.0 | 25 |
| 40 | 1.5″ | 52.0 | 52.2 | 3.5 | 4.0 | 56.0 | 25 |
| 50 | 2.0″ | 64.0 | 64.2 | 4.0 | 4.6 | 69.0 | 30 |
| 80 | 3.0″ | 92.0 | 92.3 | 4.0 | 4.6 | 98.0 | 40 |
| 100 | 4.0″ | 117.0 | 117.3 | 5.0 | 5.7 | 124.0 | 48 |
| 125 | 5.0″ | 144.0 | 144.4 | 6.5 | 7.3 | 154.0 | 63 |
| 150 | 6.0″ | 169.0 | 169.4 | 7.5 | 8.5 | 182.0 | 63 |
| 175 | 7.0″ | 204.0 | 204.5 | 8.8 | 9.8 | 219.0 | 63 |
| 200 | 8.0″ | 229.0 | 229.5 | 10.0 | 11.2 | 247.0 | 74 |
| 250 | 10.0″ | 284.0 | 284.5 | 12.5 | 14.0 | 302.0 | 90 |
| 300 | 12.0″ | 334.0 | 334.6 | 14.5 | 16.2 | 356.0 | 90 |
| 350 | 14.0″ | 404.0 | 404.7 | 17.5 | 19.5 | 432.0 | 90 |
| 400 | 16.0″ | 454.0 | 454.8 | 19.5 | 21.7 | 483.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100 | 4.0″ | 117.0 | 117.3 | 7.0 | 7.9 | 129.0 | 48 |
| 115 | 4.5″ | 129.0 | 129.3 | 7.5 | 8.5 | 141.0 | 48 |
| 125 | 5.0″ | 144.0 | 144.4 | 8.0 | 9.0 | 156.0 | 63 |
| 150 | 6.0″ | 169.0 | 169.4 | 9.5 | 10.7 | 184.0 | 63 |
| 175 | 7.0″ | 204.0 | 204.5 | 11.8 | 13.6 | 221.0 | 63 |
| 200 | 8.0″ | 229.0 | 229.5 | 13.0 | 14.8 | 251.0 | 74 |
| 250 | 10.0″ | 284.0 | 284.5 | 16.0 | 17.6 | 309.0 | 90 |
| 300 | 12.0″ | 334.0 | 334.6 | 19.0 | 21.0 | 363.0 | 90 |
| 350 | 14.0″ | 404.0 | 404.7 | 21.5 | 23.9 | 437.0 | 90 |
| 400 | 16.0″ | 454.0 | 454.8 | 23.5 | 26.1 | 494.0 | 102 |
| RMS/PMS | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter | Number of Slot N (Min) | Σα ± 5% | Slot width in mm | ||||||||
| Free passage area in Percentage | |||||||||||
| mm | inch | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 | ||
| 35 | 1.25 | 3 | 75 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 40 | 1.5 | 3 | 85 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 50 | 2 | 3 | 108 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 80 | 3 | 3 | 168 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 100 | 4 | 5 | 216 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | 14.0 |
| 115 | 4.5 | 5 | 240 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | 14.0 |
| 125 | 5 | 5 | 240 | — | 4.7 | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 150 | 6 | 5 | 285 | — | — | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 175 | 7 | 6 | 340 | — | — | 5.6 | 8.3 | 8.5 | 8.8 | 11.0 | 13.5 |
| 200 | 8 | 6 | 390 | — | — | — | 8.3 | 8.5 | 8.8 | 11.0 | 13.5 |
| 250 | 10 | 6 | 450 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 300 | 12 | 6 | 530 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 350 | 14 | 8 | 640 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| 400 | 16 | 8 | 720 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| Slot pitch mm b±0.5 mm | 4.0 | 4.0 | 5.5 | 5.5 | 6.8 | 9.5 | 9.5 | 11.0 | |||
| RDS/PDS | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter | Number of Slot N (Min) | Σα ± 5% | Slot width in mm | ||||||||
| Free passage area in Percentage | |||||||||||
| mm | inch | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 | ||
| 100 | 4 | 5 | 206 | — | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 115 | 4.5 | 5 | 230 | — | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 125 | 5 | 5 | 235 | — | — | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 150 | 6 | 5 | 278 | — | — | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 175 | 7 | 6 | 330 | — | — | — | 8.3 | 8.5 | 8.8 | 11.0 | 13.5 |
| 200 | 8 | 6 | 380 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 250 | 10 | 6 | 435 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 300 | 12 | 6 | 512 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 350 | 14 | 8 | 626 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| 400 | 16 | 8 | 706 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| Slot pitch mm b±0.5 mm | 4.0 | 4.0 | 5.5 | 5.5 | 6.8 | 9.5 | 9.5 | 11.0 | |||
| RMS/PMS | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter | Slot width in mm | ||||||||||
| Free passage area in Percentage | |||||||||||
| mm | inch | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 | ||
| 50 | 2.0 | 0.18 | 0.25 | 0.29 | 0.44 | 0.45 | 0.46 | 0.58 | 0.67 | ||
| 80 | 3.0 | 0.27 | 0.39 | 0.45 | 0.68 | 0.70 | 0.72 | 0.90 | 1.04 | ||
| 100 | 4.0 | 0.35 | 0.50 | 0.57 | 0.87 | 0.90 | 0.93 | 1.16 | 1.34 | ||
| 115 | 4.5 | 0.40 | 0.56 | 0.64 | 0.97 | 1.01 | 1.04 | 1.30 | 1.50 | ||
| 125 | 5.0 | — | 0.56 | 0.66 | 0.97 | 1.00 | 1.04 | 1.30 | 1.59 | ||
| 150 | 6.0 | — | — | 0.78 | 1.15 | 1.19 | 1.23 | 1.54 | 1.89 | ||
| 175 | 7.0 | — | — | 0.93 | 1.38 | 1.41 | 1.46 | 1.82 | 2.24 | ||
| 200 | 8.0 | — | — | — | 1.59 | 1.62 | 1.68 | 2.10 | 2.58 | ||
| 250 | 10.0 | — | — | — | 1.81 | 1.88 | 1.93 | 2.42 | 2.97 | ||
| 300 | 12.0 | — | — | — | 2.13 | 2.22 | 2.27 | 2.86 | 3.51 | ||
| Slot width (W) mm | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 |
|---|---|---|---|---|---|---|---|---|
| Tolerance (mm) | +0.06 | +0.06 | +0.10 | +0.20 | +0.20 | +0.20 | +0.20 | +0.30 |
| -0.00 | -0.00 | -0.00 | -0.00 | -0.00 | -0.00 | -0.00 | -0.00 |
Designed for borewell contractors, farmers, project engineers and dealers working on borewell and tubewell projects across India.
Duke uPVC casing pipes are designed to provide a stable casing system for borewell and tubewell applications. The current technical range includes multiple casing and screen configurations with detailed specifications for nominal diameter, actual outside diameter, wall thickness, connection diameter, thread length and screen parameters.
The correct casing pipe should be selected according to the bore design, actual pipe dimensions, geological conditions and screen requirement—not by nominal inch size or price alone.
Relevant Indian Standard: IS 12818:2010 covers PVC-U screen and casing pipes for bore/tubewells.
Manufacturer: Duke Pipes Private Limited, Gujarat, India
Manufacturing piping solutions since: 1998
CTA: View Technical Specifications
CTA: Request Current Price
A uPVC casing pipe is installed inside a drilled borewell or tubewell to provide a stable lining for the bore. Plain casing is generally used where structural support is required, while screen sections allow groundwater to enter through designed openings in selected water-bearing zones.
uPVC is commonly used for borewell casing because it does not suffer from conventional metal rusting, is comparatively lightweight and can be manufactured in different sizes and casing or screen configurations.
The relevant Indian Standard for this product category is IS 12818:2010 — Unplasticized Polyvinyl Chloride (PVC-U) Screen and Casing Pipes for Bore/Tubewells.
Duke Pipes manufactures uPVC casing solutions with detailed technical dimensions to help contractors, project buyers and dealers select pipes according to actual borewell requirements.
uPVC does not rust like conventional ferrous metal casing, making it suitable for many underground water applications.
Its comparatively low weight helps simplify transportation, site handling and pipe lowering.
Duke casing pipes use threaded connection arrangements for joining individual pipe sections during installation.
The Duke technical range includes CS, CM and CD casing pipes along with additional configurations shown in the Technical Parameters section.
Plain casing and screen pipe options allow different sections of a borewell to perform different functions.
Duke publishes nominal diameter, mean outside diameter, wall thickness, maximum connection diameter and thread-length data so selection can be based on actual measurements rather than only nominal size.
For the water-lifting section of a borewell system, explore uPVC column pipes for submersible pumps.
Duke’s technical range includes CS, CM and CD casing pipes for different borewell requirements.
The correct series should not be selected only by price.
Before choosing a casing series, consider:
Exact depth suitability should always be checked against Duke’s latest approved technical specifications before installation.
If you are still deciding which type is suitable for your project, read our guide on how to choose the best casing pipe for a borewell.
Across Duke’s currently published technical tables, casing sizes vary by series and extend from smaller nominal diameters through DN400, depending on the configuration.
For example:
Additional R-CS, R-CM and R-CD technical tables are also available on the page.
Before ordering, always check:
This distinction is important when matching a casing pipe to a drilled bore.
A pipe commonly described as a 6-inch casing pipe is not necessarily exactly 6 inches across its outside surface.
Example: Duke’s current CS technical table lists DN150, commonly referenced as 6 inch, with a mean outside diameter of approximately 165.0–165.4 mm. Its maximum outside diameter over the connection is 174 mm.
This is why casing clearance should be calculated using the actual pipe and connection dimensions rather than the nominal inch description alone.
For a broader understanding of casing, column and other borewell components, read the complete borewell pipe guide.
The Technical Parameters section should remain a key part of this product page.
Do not convert these specification tables into images.
For clearer reading and better search-engine interpretation, use these column names consistently:
Nominal Diameter
Mean Outside Diameter (mm)
Wall Thickness (mm)
Maximum Outside Diameter Over Connection (mm)
Thread Length (mm)
Use Minimum and Maximum instead of only “min” and “max” where layout permits.
For the R-CS table, remove quotation marks from values in the millimetre column. For example, display 100 under mm and 4.0″ under inch—not 100" under mm.
Technical buyers can also download Duke Pipes technical specifications and brochures.
Duke’s current technical tables include DN165 / 6.5-inch nominal casing in CS, CM and CD configurations.
The actual dimensions vary according to series.
| Series | Nominal Size | Mean Outside Diameter | Wall Thickness | Maximum Connection OD |
|---|---|---|---|---|
| CS | DN165 / 6.5″ | 180.0–180.3 mm | 6.10–7.10 mm | 188 mm |
| CM | DN165 / 6.5″ | 180.0–180.4 mm | 8.0–8.5 mm | 196.7 mm |
| CD | DN165 / 6.5″ | 180.0–180.4 mm | 12.0–12.5 mm | 200 mm |
This comparison shows why a buyer requesting a 6.5-inch casing pipe price should also specify the required series. The nominal diameter may be the same while wall thickness and connection dimensions differ.
Plain casing and screen pipes perform different functions inside a borewell.
| Pipe Type | Main Purpose |
| Plain Casing Pipe | Provides a solid casing section where water entry through the pipe wall is not required |
| Screen Pipe | Uses designed slots/openings to allow groundwater entry in selected borewell sections |
Duke’s technical section includes screen data covering factors such as nominal diameter, number of slots, slot width, open passage area and permeability.
The screen configuration should be selected according to borewell design and geological conditions rather than simply using the same screen at every depth.
Duke’s screen tables provide more than a simple pipe diameter.
Depending on the screen configuration, technical data includes:
These values help engineers and borewell professionals compare screen configurations for different project requirements.
Any technical symbol or abbreviation used in the table, including values such as Σa ±5%, should have a short legend or definition beside the table based on Duke’s approved technical documentation.
Duke uPVC casing pipes are designed for suitable borewell and tubewell applications where a stable casing or screen system is required.
Typical use cases include:
The final casing configuration should be selected according to the site’s bore design and installation requirements.
The right casing pipe is the one that matches the technical requirements of the borewell—not simply the lowest-priced or largest available pipe.
Before requesting a quotation, confirm:
If you do not yet know the exact series, provide the project details to the Duke Pipes team so the relevant technical specifications can be reviewed.
There is no single fixed uPVC casing pipe price for every borewell project.
Price can vary according to:
Two pipes described using the same nominal inch size may therefore have different specifications and prices.
If you are searching for a 6.5-inch casing pipe price, Duke casing pipe price, or pricing for a particular pipe length, share:
Duke Pipes can then confirm current product availability and provide a more relevant quotation.
Request current uPVC casing pipe pricing.
uPVC casing installation should be carried out by experienced borewell professionals and according to the latest product instructions.
Before and during installation:
Project-specific installation decisions should always follow the applicable technical specification and site conditions.
Duke Pipes Private Limited has been manufacturing piping solutions in Gujarat, India since 1998.
For contractors, dealers and project buyers comparing a uPVC casing pipe manufacturer, useful factors include more than promotional claims.
Duke provides:
This technical information allows buyers to compare products using actual project requirements before ordering.
For current availability, technical guidance or project-specific pricing, keep these details ready:
Contact Duke Pipes for current casing pipe pricing and product guidance.
Phone: +91 73920 73920
Email: [email protected]
For complete borewell selection guidance, read Best uPVC Casing Pipe for Borewell in India.
Select the correct specification first. Compare the price second.
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100 | 4.0 | 113.0 | 113.3 | 4.60 | 5.20 | 116.0 | 48 |
| 125 | 5.0 | 140.0 | 140.4 | 5.30 | 5.60 | 148.0 | 63 |
| 150 | 6.0 | 165.0 | 165.4 | 5.70 | 6.50 | 174.0 | 63 |
| 165 | 6.5 | 180.0 | 180.3 | 6.10 | 7.10 | 188.0 | 63 |
| 175 | 7.0 | 200.0 | 200.5 | 7.00 | 7.80 | 211.0 | 63 |
| 200 | 8.0 | 225.0 | 225.5 | 7.60 | 8.80 | 238.0 | 74 |
| 225 | 9.0 | 250.0 | 250.5 | 8.80 | 9.60 | 262.0 | 74 |
| 250 | 10.0 | 280.0 | 280.5 | 9.60 | 11.0 | 292.0 | 90 |
| 300 | 12.0 | 330.0 | 330.6 | 11.2 | 13.3 | 346.0 | 90 |
| 350 | 14.0 | 400.0 | 400.7 | 14.0 | 15.5 | 420.0 | 90 |
| 400 | 16.0 | 450.0 | 450.8 | 16.0 | 17.5 | 470.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 35 | 1.25″ | 42.0 | 42.2 | 3.5 | 4.0 | 46.0 | 25 |
| 40 | 1.5″ | 48.0 | 48.2 | 3.5 | 4.0 | 52.0 | 25 |
| 50 | 2.0″ | 60.0 | 60.2 | 4.0 | 4.6 | 65.0 | 30 |
| 80 | 3.0″ | 88.0 | 88.3 | 4.0 | 4.6 | 94.0 | 40 |
| 100 | 4.0″ | 113.0 | 113.3 | 5.0 | 5.7 | 120.0 | 48 |
| 115 | 4.5″ | 125.0 | 125.3 | 5.0 | 5.7 | 132.0 | 48 |
| 125 | 5.0″ | 140.0 | 140.4 | 6.5 | 7.3 | 150.0 | 63 |
| 150 | 6.0″ | 165.0 | 165.4 | 7.5 | 8.5 | 178.0 | 63 |
| 165* | 6.5″ | 180.0 | 180.4 | 8.0 | 8.5 | 196.7 | 63 |
| 175 | 7.0″ | 200.0 | 200.5 | 8.8 | 9.8 | 215.0 | 63 |
| 200 | 8.0″ | 225.0 | 225.5 | 10.0 | 11.2 | 243.0 | 74 |
| 225* | 9.0″ | 250.0 | 250.5 | 12.0 | 12.5 | 270.0 | 74 |
| 250 | 10.0″ | 280.0 | 280.5 | 12.5 | 14.0 | 298.0 | 90 |
| 300 | 12.0″ | 330.0 | 330.6 | 14.5 | 16.2 | 352.0 | 90 |
| 350 | 14.0″ | 400.0 | 400.7 | 17.5 | 19.5 | 428.0 | 90 |
| 400 | 16.0″ | 450.0 | 450.8 | 19.5 | 21.7 | 479.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100 | 4.0″ | 113.0 | 113.3 | 7.00 | 7.90 | 125.0 | 48 |
| 115 | 4.5″ | 125.0 | 125.3 | 7.50 | 8.50 | 137.0 | 48 |
| 125 | 5.0″ | 140.0 | 140.4 | 8.00 | 9.00 | 152.0 | 63 |
| 150 | 6.0″ | 165.0 | 165.4 | 9.50 | 10.70 | 180.0 | 63 |
| 165* | 6.5″ | 180.0 | 180.4 | 12.00 | 12.50 | 200.0 | 63 |
| 175 | 7.0″ | 200.0 | 200.5 | 11.80 | 13.60 | 217.0 | 63 |
| 200 | 8.0″ | 225.0 | 225.5 | 13.00 | 14.80 | 247.0 | 74 |
| 225* | 9.0″ | 250.0 | 250.5 | 14.50 | 15.50 | 270.0 | 74 |
| 250 | 10.0″ | 280.0 | 280.5 | 16.00 | 17.6 | 304.0 | 90 |
| 300 | 12.0″ | 330.0 | 330.6 | 19.0 | 21.0 | 359.0 | 90 |
| 350 | 14.0″ | 400.0 | 400.7 | 21.5 | 23.9 | 433.0 | 90 |
| 400 | 16.0″ | 450.0 | 450.8 | 23.5 | 26.1 | 490.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100″ | 4.0 | 117.0 | 117.3 | 4.60 | 5.20 | 120.0 | 48 |
| 125″ | 5.0 | 144.0 | 144.4 | 5.30 | 5.60 | 152.0 | 63 |
| 150″ | 6.0 | 169.0 | 169.4 | 5.70 | 6.50 | 178.0 | 63 |
| 175″ | 7.0 | 204.0 | 204.5 | 7.00 | 7.80 | 215.0 | 63 |
| 200″ | 8.0 | 229.0 | 229.5 | 7.60 | 8.80 | 242.0 | 74 |
| 250″ | 10.0 | 284.0 | 284.5 | 9.60 | 11.0 | 296.0 | 90 |
| 300″ | 12.0 | 334.0 | 334.6 | 11.20 | 13.30 | 350.0 | 90 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 35 | 1.25″ | 46.0 | 46.2 | 3.5 | 4.0 | 50.0 | 25 |
| 40 | 1.5″ | 52.0 | 52.2 | 3.5 | 4.0 | 56.0 | 25 |
| 50 | 2.0″ | 64.0 | 64.2 | 4.0 | 4.6 | 69.0 | 30 |
| 80 | 3.0″ | 92.0 | 92.3 | 4.0 | 4.6 | 98.0 | 40 |
| 100 | 4.0″ | 117.0 | 117.3 | 5.0 | 5.7 | 124.0 | 48 |
| 125 | 5.0″ | 144.0 | 144.4 | 6.5 | 7.3 | 154.0 | 63 |
| 150 | 6.0″ | 169.0 | 169.4 | 7.5 | 8.5 | 182.0 | 63 |
| 175 | 7.0″ | 204.0 | 204.5 | 8.8 | 9.8 | 219.0 | 63 |
| 200 | 8.0″ | 229.0 | 229.5 | 10.0 | 11.2 | 247.0 | 74 |
| 250 | 10.0″ | 284.0 | 284.5 | 12.5 | 14.0 | 302.0 | 90 |
| 300 | 12.0″ | 334.0 | 334.6 | 14.5 | 16.2 | 356.0 | 90 |
| 350 | 14.0″ | 404.0 | 404.7 | 17.5 | 19.5 | 432.0 | 90 |
| 400 | 16.0″ | 454.0 | 454.8 | 19.5 | 21.7 | 483.0 | 102 |
| Nominal Diameter | Mean Outer Diameter (mm) | Wall Thickness | Mean Outer Dia Over Connection (Max) | Length of Threads | |||
|---|---|---|---|---|---|---|---|
| mm | inch | min | max | min | max | ||
| 100 | 4.0″ | 117.0 | 117.3 | 7.0 | 7.9 | 129.0 | 48 |
| 115 | 4.5″ | 129.0 | 129.3 | 7.5 | 8.5 | 141.0 | 48 |
| 125 | 5.0″ | 144.0 | 144.4 | 8.0 | 9.0 | 156.0 | 63 |
| 150 | 6.0″ | 169.0 | 169.4 | 9.5 | 10.7 | 184.0 | 63 |
| 175 | 7.0″ | 204.0 | 204.5 | 11.8 | 13.6 | 221.0 | 63 |
| 200 | 8.0″ | 229.0 | 229.5 | 13.0 | 14.8 | 251.0 | 74 |
| 250 | 10.0″ | 284.0 | 284.5 | 16.0 | 17.6 | 309.0 | 90 |
| 300 | 12.0″ | 334.0 | 334.6 | 19.0 | 21.0 | 363.0 | 90 |
| 350 | 14.0″ | 404.0 | 404.7 | 21.5 | 23.9 | 437.0 | 90 |
| 400 | 16.0″ | 454.0 | 454.8 | 23.5 | 26.1 | 494.0 | 102 |
| RMS/PMS | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter | Number of Slot N (Min) | Σα ± 5% | Slot width in mm | ||||||||
| Free passage area in Percentage | |||||||||||
| mm | inch | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 | ||
| 35 | 1.25 | 3 | 75 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 40 | 1.5 | 3 | 85 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 50 | 2 | 3 | 108 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 80 | 3 | 3 | 168 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 100 | 4 | 5 | 216 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | 14.0 |
| 115 | 4.5 | 5 | 240 | 3.7 | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | 14.0 |
| 125 | 5 | 5 | 240 | — | 4.7 | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 150 | 6 | 5 | 285 | — | — | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 175 | 7 | 6 | 340 | — | — | 5.6 | 8.3 | 8.5 | 8.8 | 11.0 | 13.5 |
| 200 | 8 | 6 | 390 | — | — | — | 8.3 | 8.5 | 8.8 | 11.0 | 13.5 |
| 250 | 10 | 6 | 450 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 300 | 12 | 6 | 530 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 350 | 14 | 8 | 640 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| 400 | 16 | 8 | 720 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| Slot pitch mm b±0.5 mm | 4.0 | 4.0 | 5.5 | 5.5 | 6.8 | 9.5 | 9.5 | 11.0 | |||
| RDS/PDS | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter | Number of Slot N (Min) | Σα ± 5% | Slot width in mm | ||||||||
| Free passage area in Percentage | |||||||||||
| mm | inch | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 | ||
| 100 | 4 | 5 | 206 | — | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 115 | 4.5 | 5 | 230 | — | 5.2 | 6.0 | 9.1 | 9.4 | 9.7 | 12.1 | — |
| 125 | 5 | 5 | 235 | — | — | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 150 | 6 | 5 | 278 | — | — | 5.6 | 8.2 | 8.5 | 8.8 | 11.0 | 13.5 |
| 175 | 7 | 6 | 330 | — | — | — | 8.3 | 8.5 | 8.8 | 11.0 | 13.5 |
| 200 | 8 | 6 | 380 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 250 | 10 | 6 | 435 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 300 | 12 | 6 | 512 | — | — | — | 7.6 | 7.9 | 8.1 | 10.2 | 12.5 |
| 350 | 14 | 8 | 626 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| 400 | 16 | 8 | 706 | — | — | — | — | 7.9 | 8.1 | 10.2 | 12.5 |
| Slot pitch mm b±0.5 mm | 4.0 | 4.0 | 5.5 | 5.5 | 6.8 | 9.5 | 9.5 | 11.0 | |||
| RMS/PMS | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter | Slot width in mm | ||||||||||
| Free passage area in Percentage | |||||||||||
| mm | inch | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 | ||
| 50 | 2.0 | 0.18 | 0.25 | 0.29 | 0.44 | 0.45 | 0.46 | 0.58 | 0.67 | ||
| 80 | 3.0 | 0.27 | 0.39 | 0.45 | 0.68 | 0.70 | 0.72 | 0.90 | 1.04 | ||
| 100 | 4.0 | 0.35 | 0.50 | 0.57 | 0.87 | 0.90 | 0.93 | 1.16 | 1.34 | ||
| 115 | 4.5 | 0.40 | 0.56 | 0.64 | 0.97 | 1.01 | 1.04 | 1.30 | 1.50 | ||
| 125 | 5.0 | — | 0.56 | 0.66 | 0.97 | 1.00 | 1.04 | 1.30 | 1.59 | ||
| 150 | 6.0 | — | — | 0.78 | 1.15 | 1.19 | 1.23 | 1.54 | 1.89 | ||
| 175 | 7.0 | — | — | 0.93 | 1.38 | 1.41 | 1.46 | 1.82 | 2.24 | ||
| 200 | 8.0 | — | — | — | 1.59 | 1.62 | 1.68 | 2.10 | 2.58 | ||
| 250 | 10.0 | — | — | — | 1.81 | 1.88 | 1.93 | 2.42 | 2.97 | ||
| 300 | 12.0 | — | — | — | 2.13 | 2.22 | 2.27 | 2.86 | 3.51 | ||
| Slot width (W) mm | 0.2 | 0.3 | 0.5 | 0.75 | 1.0 | 1.5 | 2.0 | 3.0 |
|---|---|---|---|---|---|---|---|---|
| Tolerance (mm) | +0.06 | +0.06 | +0.10 | +0.20 | +0.20 | +0.20 | +0.20 | +0.30 |
| -0.00 | -0.00 | -0.00 | -0.00 | -0.00 | -0.00 | -0.00 | -0.00 |
A uPVC casing pipe is used to provide a stable lining inside a borewell or tubewell. Plain casing supports sections of the bore, while screen pipes contain designed openings for groundwater entry where required by the well design.
Size availability depends on the casing series. Duke’s current technical tables include nominal diameters ranging from DN35 to DN400 across different CS, CM and CD configurations, along with additional technical variants.
CS, CM and CD are different casing configurations with different dimensional and wall-thickness specifications. The correct series should be selected according to the borewell requirement and Duke’s latest approved technical data.
Not necessarily. Duke’s current CS table lists DN150/6-inch nominal casing with an actual mean outside diameter of approximately 165.0–165.4 mm. The maximum diameter over the connection is larger again.
Duke’s current technical tables include DN165/6.5-inch nominal casing in CS, CM and CD configurations. Wall thickness and connection dimensions vary by series.
Plain casing has a solid wall and is used where water entry through the pipe is not required. Screen pipe contains designed slots or openings that allow groundwater entry in selected sections of a borewell.
Pricing depends on nominal diameter, series, wall thickness, plain or screen configuration, quantity, delivery location and current commercial rates. Exact project details produce a more useful quotation.
“Boring pipe” is an informal market term and can be used differently across regions. In a borewell system, casing pipe supports or lines the bore, while a column pipe carries pumped water toward the surface. Buyers should confirm the required function before ordering.