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CPVC piping systems are used for industrial applications, column and pressure piping systems and for other for agriculture applications. We embrace the latest international technology and provide quality piping solutions made for varied needs of the markets. Chlorinated Polyvinyl Chloride (CPVC) is a thermoplastic pipe material. It is nationally accepted since 1982 and has many benefits when compared with other plumbing materials. It is primarily used for supplying hot and cold potable water and in industrial liquid applications.

CPVC pipe has a number of features that make it an improvement over standard PVC piping. It offers greater heat resistance, withstanding corrosive water temperatures between 70°F and 90°F higher than PVC. CPVC is non-toxic, while PVC may leach toxins into the water at increased temperatures. CPVC also offers greater strength and flexibility, while PVC is far less ductile.

CPVC pipe has become a modern standard for water supply and liquid lines because of its cost saving benefits over metal piping. It is less expensive than copper piping and materials, as well as being lighter, making it faster and easier to install, saving on labour costs. The thermal conductivity of copper pipe is 2500 times greater than CPVC pipe, meaning it provides significant energy savings while keeping water hotter longer.

Features & Benefits:

Corrosion Resistance: Panchakanya Durastream CPVC gives excellent resistance even under the harshest of water conditions so there are none of the purity worries from corrosion of metal pipe or soldered joints. Panchakanya Durastream CPVC pipe keeps pure water pure.

Low Bacterial Growth: Bacteria build up with CPVC is far lower than with alternative piping materials–Copper, steel and other thermoplastics.

Tough Rigid Material: Panchakanya Durastream CPVC pipe has a much higher strength than other thermoplastics used in plumbing. This means that CPVC needs less hangers and supports and there is no unsightly looping of the pipe. Panchakanya Durastream CPVC pipe has a higher pressure bearing capability. This leads to the same flow rate with a smaller pipe size.

No Scale, pit or leach formation: Even after years of use in the most aggressive conditions, Panchakanya Durastream CPVC pipe won’t corrode, standing up to low PH water, Coastal salt-air exposure and corrosive soils. Panchakanya Durastream CPVC Pipe stays as solid and reliable as the day it was installed. It maintains full water carrying capacity because it's scale resistance means no build up to cause water pressure loss.

Unaffected by Chlorine in the water: Some materials maybe adversely by chlorine contained in the water supply, which can cause breakdown of the polymer chains and potential leaks. In this respect, Panchakanya CPVC pipe is unaffected by the chlorine present in potable water supply.

Chemical Resistance: CPVC has excellent chemical resistance to strong mineral acid sand bases.

Low Thermal Expansion: Panchakanya Durastream CPVC pipe has a lower co-efficient of thermal expansion than alternative plastics, reducing the amount that the pipe expands when hot water is running, again reducing unsightly ‘looping’ of the pipe.

Easy, Cold welding process: CPVC uses a simple, solvent cement joining method. Tools required are very simple and inexpensive (Chamfering tool and pipe cutter only) and avoid the need for an electrical source.

Superior Insulation: Panchakanya Durastream CPVC pipe is more energy efficient than metal pipe. As an insulator it does not lose heat the way metal pipe do. Heat loss and thermal expansion are reduced.

Hot & Cold Water Compatible: Panchakanya Durastream CPVC pipe is compatible with both hot and cold water. It withstands very high temperature compared to any other thermoplastic plumbing systems. Many solar and electric water heaters have CPVC piping system for heat efficiency and lower installation cost.

Fire Safety: CPVC has a limiting Oxygen Index (LOI) of 60. Thus in air, Panchakanya Durastream CPVC pipe does not support combustion. No flaming drips, does not increase the fire load, low flame spread, low smoke generation.

Approved Worldwide: CPVC plumbing system is approved for contact with potable water in wide range of countries including USA, UK, Canada, Germany, France, The Netherlands and Middle East among others

Cost Effective: CPVC Plumbing System is very cost effective than any other plumbing systems. It saves cost on fittings, loops, anchors, off-sets, insulation, labour and expensive tools. Moreover CPVC plumbing systems last longer more than 50 years

C-PVC Systems & Application Areas:

  • Residential Apartments
  • Villas and Individual Homes
  • Office Complexes
  • Commercial Buildings
  • Hotels
  • Hospitals

Panchakanya C-PVC Pipe Product Specification

Our Product Range Wall thickness chart as per IS 15778 : 2007

Wall thickness and Weight chart of cpvc pipe as per IS-15778:2007

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Sl No. Nominal size Mean Outside Diameter Outside Diameter at any point Wall thickness and weight of SDR-11 Wall thickness and weight of SDR-13.5 Wall thickness and weight of SDR-17
Wall thickness(mm) Weight(kg/mtr) Wall thickness(mm) Weight(kg/mtr) Wall thickness(mm) Weight(kg/mtr) Wall thickness(mm) Weight(kg/mtr)
Min. Max. Avg. Min. Max. Avg. Min. Max. Avg. Min. Max. Avg. Min. Max. Avg. Min. Max. Avg. Min. Max. Avg. Min. Max. Avg.
1 15mm(1/2'') 15.80 16.00 15.90 15.80 16.00 15.90 1.70 2.20 1.95 0.117 0.147 0.132 1.400 1.900 1.650 0.097 0.129 0.113
2 20mm(3/4') 22.10 22.30 22.20 22.00 22.40 22.20 2.00 2.50 2.25 0.197 0.240 0.218 1.700 2.200 1.950 0.168 0.214 0.191
3 25mm(1'') 28.50 28.70 28.60 28.40 28.80 28.60 2.60 3.10 2.85 0.329 0.385 0.357 2.100 2.600 2.350 0.268 0.329 0.299
4 32mm(1-1/4'') 34.80 35.00 34.90 34.70 35.10 34.90 3.20 3.70 3.45 0.494 0.562 0.528 2.600 3.100 2.850 0.406 0.480 0.443
5 40mm(1-1/2') 41.20 41.40 41.30 41.10 41.50 41.30 3.80 4.30 4.05 0.694 0.774 0.734 3.100 3.600 3.350 0.573 0.661 0.617
6 50mm(2'') 53.90 54.10 54.00 53.70 54.30 54.00 4.90 5.50 5.20 1.171 1.298 1.235 4.000 4.600 4.300 0.968 1.106 1.037
7 65mm(2-1/2'') 72.80 73.20 73.00 72.20 73.8 73.00 4.30 4.80 4.55 1.438 1.593 1.516
8 80mm(3'') 88.70 89.10 88.90 88.10 89.7 88.9 5.20 5.90 5.55 2.118 2.383 2.251
9 100mm(4'') 114.10 114.50 114.30 113.50 115.1 114.3 6.70 7.50 7.10 3.509 3.898 3.704
10 150mm(6'') 168.00 168.60 168.30 166.50 170.1 168.3 9.90 11.10 10.50 7.632 8.493 8.062

Panchakanya Durastream CPVC pipes & fittings are the one of the pioneer product of Panchakanya Group. Panchakanya CPVC pipes and fittings are made from the special thermoplastic, chemically known as chlorinated polyvinyl chloride(CPVC)

These pipes are manufactured from our state of the art machinery in Copper Tube Size (CTS) ranging from ½” to 2” in two different Standard Dimension Ratio SDRi.e.11 & SDR–13.5 as per the standard of ASTMD–2846 to meet the international standard.

Apart from having the same physical properties, SDR11&SDR13.5 comes with different wall thickness & therefore, at any given temperature, they have different pressure ratings. For e.g.

Pipe Temperature (⁰C) Pressure Rating

Temperature Operating
SDR 11 27⁰C 28.14 kg/cm2
82⁰C 7.1 kg/cm2
SDR 13.5 27⁰C 22.23 kg/cm2
82⁰C 5.61 kg/cm2

Outside Diameters & Wall Thickness for CPVC 4120, SDR11 Plastic As Per ASTMD-2846.

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Nominal Size (in.) (mm) Outside Diameter in. ( mm) Wall Thickness, in. (mm) Pressure Rating. PSI (Kg.Cm2)
Average Tolerance Minimum Tolerance 73.4⁰F   (23⁰C) 180⁰F    (82⁰C)
1/2'” (15) 0.625 (15.9) ±0.003 (0.08) 0.068 (1.73) +0.020 (0.51) 400 (28.1) 100 (7.0)
¾” (20) 0.875 (22.2) ±0.003 (0.08) 0.080 (2.03) +0.020 (0.51) 400 (28.1) 100 (7.0)
1” (25) 1.125 (28.6) ±0.003 (0.08) 0.102 (2.59) +0.020 (0.51) 400 (28.1) 100 (7.0)
1 ¼ (32) 1.375 (34.9) ±0.003 (0.08) 0.125 (3.18) +0.020 (0.51) 400 (28.1) 100 (7.0)
1 ½ (40) 1.625 (41.3) ±0.004 (0.10) 0.148 (3.76) +0.020 (0.51) 400 (28.1) 100 (7.0)
2 (50) 2.125 (54.0) ±0.004 (0.10) 0.193 (4.90) +0.023 (0.58) 400 (28.1) 100 (7.0)

Panchakanya CPVC Pipes – Do’s & Don’ts


  • All products should be installed according to Panchakanya CPVC installation Instructions and manual and recommended safe work practices should be followed.
  • Pipe and fitting should be stored in original packaging, in covered area, until needed.
  • Use tools designed for use with the plastic pipe and fittings.
  • Hydraulic pressure testing after installation should be conducted to detect any leak sand faults. Wait for appropriate cure time before testing. Fill lines slowly and bleed air from the system prior to pressure testing.
  • Cut off minimum 25mm beyond the edge of the crack in case any crack is discovered on the pipe.
  • While embedding the pipes on the walls or in the floors, ensure that the rear has no sharp edges in contact with the pipe.
  • Rotate pipe 90⁰ to 180⁰ to spread the CPVC solvent cement evenly in the joint while pushing
  • the pipe into fitting.
  • Always use Teflon tapes with threaded fittings.
  • Provide Vertical & Horizontal supports as recommended using the plastic straps only.
  • When connecting to a gas water heater, CPVC tubing should not be located within 50cm of the flue. For water heaters lacking reliable temperature control, this distance maybe increased up to 1m. A metal nipple or flexible appliance connector should be used. This eliminates the potential for damage to plastic piping that might result from excessive radiant heat from flue.
  • Apply water based paint only on exposed pipes and fittings.
  • All joints should be inspected for proper cementing at the end of shift or day. A visual inspection of the complete system is also recommended during pressure testing.
  • Use of a brass/CPVC transition adapter when connecting CPVC to a water heater will help facilitate water heater replacement in the future.
  • Pressure test CPVC systems in accordance with local code requirements.


  • Do not use metal hooks or nails to support/hold or put pressure on the pipes. Do not use straps & hangers with sharp edge. Do not tighten the straps over the pipes.
  • Never expose the pipe to open flame while trying to bend it.
  • Do not drop pipes on edges from heights. Do not drop heavy objects on pipes or walk on pipes.
  • Do not dilute solvent cement with thinners or MTO or any other liquid etc.
  • Do not use any other petroleum or solvent–based seal and adhesive, lubricant or fire stop material on CPVC pipes and fittings.
  • Do not use air or gases for pressure testing.
  • Do not use CPVC pipes & fittings for pneumatic applications.

Panchakanya CPVC Pipes & Fittings Installation Procedure:



Panchakanya Dura stream CPVC pipe can be easily cut with a wheel– type plastic pipe cutter, ratchet cutter or fine tooth saw. Ratchet cutters should be sharpened regularly. When saw cutting, a miter box should be used to ensure a square cut. Cutting pipe as squarely as possible provides optimal bonding area within a joint. If any indication of damage or cracking is evident at the pipe end, cut off atleast 2 inches beyond any visible crack.



Burr sand fitting scan prevent proper contact between pipe and fitting during assembly and should be removed from the outside and inside of the pipe. A chamfering tool is preferred, but a pocket knife or files area is suitable for this purpose. A slight bevel on the end of the pipe will ease entry of the pipe into the fitting socket and minimize the chances of pushing solvent cement to the bottom of the joint.



Using a clean, dry rag, wipe dirt and moisture from the fitting socket sand pipe end. Check the dry fit of the pipe and fitting. The pipe should make contact with the socket wall 1/3 to 2/3 of the way into the fitting socket. At this stage, pipe should not bottom out in the socket.



Use only CPVC cement conforming to ASTMF 493 or joint failure may occur. Yellow one – step cement may be used without primer. If a primer is required by local plumbing codes, a primer conforming to ASTMF 656 should be used. When making a joint, apply full even layer of cement on the pipe O.D. for a distance slightly greater than the depth of the socket of the fitting. Coat the fitting socket with a medium layer of cement avoiding pudding inside the system. Apply a second full even layer of cement on the pipe O.D. Too much cement can cause clogged water ways.



Immediately insert the pipe into the fitting socket, rotating the pipe ¼ to ½ turn while inserting. This motion ensures an even distribution of cement with the joint. Properly align the fitting. Hold the assembly for approximately 10 seconds, allowing the joint to set-up. An even bead of cement should be visible around the joint. If this bead is not continuous around the socket edge, it may indicate that insufficient cement was applied. In this case, remake the joint avoid potential leaks. Wipe excess cement from the pipe and fittings surface for an attractive, professional appearance.



A joint which has cured sufficiently to pressure test may not exhibit it's full joint strength. Solvent cement set and cure times are function of a pipe size, temperature and relative humidity. Curing time is shorter for drier environments, smaller sizes and higher temperatures. Refer to the following table for minimum cure times after the last joint has been made been made before pressure testing can begin. Use of primer and/or presence of hot water extend cure time required for pressure testing.

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Pipe Ambient Temperature During Cure Period
60⁰F 40⁰F 32⁰F 0⁰F
½” 10 min. 10 min. 15 min 30 min.
¾” 10 15 15 30
1” 10 15 20 30
1 ¼” 10 15 20 30
1 ½” 15 15 30 45
2” 15 15 30 60

Special Care should be exercised when assembling Panchakanya Dura stream CPVC system in extremely low temperatures (below 40⁰F) or extremely high temperatures (above 100⁰F). In extremely hot temperatures, make sure both surfaces to be joined are still wet with cement when putting them together.

My compliments, I commend Panchakanya Steel on the professional and thorough approach it has to delivering and maintain service with us. Thank you for your valuable time and consideration in this respect.

- Mahesh Shrestha

I have been very impressed with the professionalism of your organization and find it well-organized.

- Bijaya Kumar Mahato