Jain Irrigation Systems Ltd. (JISL) derives its name from the pioneering work it did for the Micro Irrigation Industry in India. However, there is more to Jain Irrigation than Irrigation. Jain Piping Division is the largest producer of Thermoplastic piping systems for all conceivable applications with pipes ranging from 3 mm to 1600 mm in diameter and in different pressure ratings.
JISL has a production capacity of over 3,00,000 M.T. per annum. JISL is the only manufacturer to own DSIR approved R&D setup with state-of-the-art facilities. The pipes are manufactured confirming to IS, DIN, ISO, ASTM, TEC and other customized specifications. The Piping Division includes PE, PVC Pipes and Fittings catering to the urban and rural infrastructure needs of the country apart from Irrigation needs of the farmers. Jain CPVC plumbing pipes & Fittings for Hot water application is yet another product which will be a forward integration of the above group of infrastructure products. This will convey the hot water with efficiency combined with economy and have a long life.

Standard and Range

Jain Plumbing CPVC pipes are manufactured to IS 15778, from specially formulated compound conforming to or exceeding the requirements of CPVC compound of cell classificati on " D.P.110-2-3-2 " as per IS 15225.

Features & Advantages

  • Manufactured from high quality NSF Approved CPVC Coumpond.
  • Compound is tested safe for potable water application.
  • Wide range of working temperatures and pressures.
  • Low thermal expansion.
  • Smooth inner wall, no scale build-up or erosion.
  • Long life – as CPVC does not build scale or corrode.
  • Excellent impact strength.
  • Light in weight, easy to Install.
  • Energy efficient, low insulation cost.
  • Ability to withstand water flow noise.
  • Excellent fire resistant characteristics.
  • Completely leak proof jointing.
  • Durablity and long term reliability.
  • Non-Toxic-Lead free.
  • Wide range of pipes and fittings.
  • Aesthetically pleasing when exposed in application.


The standard contains physical, performance and quality requirments and also requires ongoing monitoring for plastic piping system components and related materials.

Pipe Dimension Chart

Jain Plumbing CPVC pipes are manufactured in different pipe diameters of copper tube size (CTS). The pipes are manufactured in size range from ½" to 2" in SDR 11 & SDR 13.5.

Sr. No. Nominal
Pipe Nominal
Minimum wall Thickness
SDR 11
Minimum wall Thickness
SDR 13.5
  Inch MM MM MM
1 ½" 15.9 1.7 1.4
2 ¾" 22.2 2 1.7
3 1" 28.6 2.6 2.1
4 1.25" 34.9 3.2 2.6
5 1.5" 41.3 3.8 3.1
6 2" 54 4.9 4.0

Installation Procedure

For fast and reliable joints of CPVC pipes and fittings use Permafix CPVC solvent cement and follow the below explained steps-

1) Cutting the Pipe:

It is important to cut the pipe square by using suitable pipe cutter. A square cut pipe provides the surface of the pipe with the maximum bonding area. Tools used to cut pipe must be designed for plastic use and must be in good condition. If there is any indication of pipe damage or evidence of pipe cracking, cut off at least 50mm beyond any such defect.

2) Deburring:

It is important to cut the pipe square by using suitable pipe cutter. A square cut pipe provides the surface of the pipe with the maximum bonding area. Tools used to cut pipe must be designed for plastic use and must be in good condition. If there is any indication of pipe damage or evidence of pipe cracking, cut off at least 50mm beyond any such defect.

3) Bevelling:

A chamfering tool or a file is suitable for this purpose. A slight bevel (approximately 10°-15° chamfer and a minimum width of 3/32 of an inch) shall be placed at the end of the pipe for ease entry of the pipe into the fitting socket. This will minimize the chance that the edges of the pipe will wipe solvent cement or will scrape softened surface material from the fitting socket during the insertion of the pipe.

4) Test Dry Fit of the Joint:

The pipe should enter the fitting socket easily 1/3 to 2/3 of the socket length for a tight interference fit. Contact between pipe and fitting is essential in making a good joint. This contact allows the solvent cement to effectively join the pipe and fitting.

5) Cleaning:

Using a clean dry cloth, wipe any dirt and moisture from the fitting socket and the pipe end. Moisture will slow the cure time, and excessive water can reduce joint strength.

6) Solvent cement application:

Apply Permafix CPVC solvent cement to the pipe end. Be aggressive to break down the surface tension and to soften the surfaces.

Apply a very light layer of solvent cement to the inside of the fitting socket. This will prevent puddling of the solvent cement inside of the pipe or fitting. Excessive solvent cement applied to the fitting socket can cause the joint to clog and the wall of the pipe or fitting to weaken due to softening by the accumulation of the excessive solvents.

7) Assembly

Without delay, while the solvent cement is still wet, assemble the pipe and fitting, and while doing so  twist a ¼ turn as the pipe is being inserted (if possible), Once the pipe end has reached the fitting socket end, stop the insertion and rotation. Continuation of rotating further could break any fusion that is starting to occur.

8) Hold On

Hold the pipe and fitting together for approximately 30 seconds to avoid push out. Adjust the hold on time based on surrounding conditions.

9) Wipe out excess cement

A bead of solvent cement must be around the entire socket fitting entrance. With a clean, dry cloth, remove the excess solvent cement from the pipe and fitting socket entrance. This will allow the solvent to evaporate from within the joint.


  • Read the manufacturer’s installation instructions.
  • Keep pipe and fittings in original packaging until needed.
  • Use tools specifically designed for use with plastic pipe and fittings.
  • Cut the pipe ends square.
  • Deburr and bevel the pipe ends with a chamfering tool.
  • Use the proper solvent cement and follow application instructions.
  • Rotate the pipe at least ¼ turn when bottoming the pipe into the fitting.
  • Avoid use of excess cement in fittings and pipe.
  • Allow CPVC tube slight movement to permit thermal expansion.
  • Use plastic pipe straps that fully encircle the tube.
  • Use protective pipe isolators when penetrating steel studs.
  • Use metallic clevis of tear drop hangers when suspending tube from anchor.
  • Use compatible sleeve material and tape while using under slab.
  • Securely tape the top of the sleeve to the pipe.
  • Extend pipe sleeve 12" above and below the slab.
  • Backfill and cover underground piping prior to spraying termiticide in concrete pour.


  • Don’t use petroleum or solvent based sealants, lubricants.
  • Don’t use edible oils, for a lubricant.
  • Don’t use solvent cement that has exceeded its shelf life or has become thick.
  • Don’t pressures test until the recommended joint cure times are met.
  • Don’t thread, groove, or drill CPVC pipe.
  • Don’t over tighten or lock down the systems.
  • Don’t install in cold weather without allowing for thermal expansion
  • Don’t use tube straps which tend to restrict expansion/contraction.
  • Don’t use wood or plastic wedges that strain the tube as it passes them.
  • Don’t terminate a run of tube against an immovable object .
  • Don’t allow heavy concentration of termiticides to come into direct contact with CPVC pipe while using under slab.
  • Don’t inject termiticides into the annular space between the pipe materials.
  • Don’t spray termiticide, when preparing a slab, without first backfill underground piping.
  • Don’t cut sleeve too short. Sleeve material should extend 12" above slab.
  • Don’t apply short cuts, while jointing

Frequently Asked Questions

1) What is Thermal Expansion?

– Expansion and contraction of piping systems due to temperature changes is not unique to plastics. Changes in temperature tend to cause a change in dimensions of any matter. But, the amount of dimensional change for a given temperature change can vary significantly depending on the material characteristics.

2) How to restrain thermal expansion?

– The restraining of the tendency of a piping system to expand/contract can result in significant stress reactions in pipe and fittings, or between the piping and its supporting structure. The allowing of a moderate change in length of an installed piping system as a consequence of a temperature change is generally beneficial. Allowing controlled expansion/contraction to take place in one part of a piping system is an accepted means to prevent added stresses to rise to levels in other parts of the system that could compromise the performance of, or cause damage to the structural integrity of a piping component, or to the structure which supports the piping. Everyone is familiar with the typical expansion loops that are periodically placed in long pipelines subject to wide temperature changes

3) How to prevent freezing?

–There are two very reliable methods of providing freeze protection and/or temperature maintenance: external electrical heat tracing using "self–regulating" style electrical heaters, and the internal method of using a smaller diameter pipe that conveys a hot fluid to transfer heat to the fluid flowing in the annular space. Both methods require a slightly different design method, and also require their own unique fabrication techniques which need to be done during pipe installation. In case no care is taken during pipe installation, but still there is chance of exposure of pipes to freezing temperatures, it is important to fill the pipes with glycerin solution. High purity glycerin and propylene glycol solutions are the best antifreeze liquids.

4) What is the effect of excessive use of solvent cement?

– An installation problem that we occasionally see is the use of excessive solvent cement. The solvents in the cement themselves are readily absorbed into the wall of the CPVC pipe and inside fitting socket resulting in solvation/softening of the material. The solvents in the cement absorbed into the pipe wall resulting in softening of the pipe wall to the point that the pipe wall became swollen/ softened and no longer had sufficient strength to hold water pressure resulting in failure.

5) What is the effect of insufficient use of solvent cement?

–Sufficient solvent cement must be applied to end up with complete coverage of the matting portion of pipe outer and fittings inner surface so that a continuous bond is formed between the pipe and fitting surfaces. If insufficient cement is used, voids may develop in between the pipe and fitting. The presence of the voids results in a weakened assembly which may result in water leaking from the joint.

6) What is the life of CPVC?

–CPVC pipe and fittings, when installed underground as per the laid down procedures had a life expectancy of more than 50 years. CPVC pipes installed decades ago are still working satisfactorily.

7) What is the effect of external contacting material on the life of CPVC pipes & fittings?

–Care must be taken not to allow CPVC pipes to contact other materials that contain aromatic ester plasticizers and flame retardants. Phthalate esters are highly incompatible with CPVC pipes. Direct contact of such material with CPVC pipes results in premature failure.

Solder flux is another material that may contain chemicals that are incompatible with CPVC. If copper pipes are being soldered in the vicinity of CPVC pipes, hot flux can fall, spatter, or vaporize and condense on the outside surface of the CPVC pipes causing ESC failure.Polyurethane spray foam (PUSF) insulation can be a problem. PUSF generates heat as it cures. If the heat is trapped by a thick layer of foam against the wall of the pipe, the heat can weaken and distort the pipe.

Also, each PUSF manufacturer has formulations that contain additives such as fire retardants. Some of these formulations may not be compatible with CPVC. one should consult with the PUSF manufacturer before applying PUSF in spaces where it may contact CPVC pipes & fittings for its chemical compatibility with CPVC.

8) Can we use CPVC pipes and fittings immediately after the solar water heater storage tank?

– YES, Jain CPVC pipes and fitting can be used immediately after the water storage tank of solar water heater. There will not be any problem with it provided that it is properly prevented against UV lights.

9) Can we use CPVC pipes & Fittings immediately after gas water heater?

–Use of CPVC pipes immediately after the gas water heaters is permitted with some restriction. A care should be taken in such a way that at no point of time the flue gases from the heater directly or indirectly come in contact with the CPVC pipe, as the passing flue gases supply external heat to the pipe and if the flue gases temperature is high enough, it may damage the pipe. if flue gases cannot be controlled, in such cases avoid the use of CPVC pipe immediately after the gas water heater.

10) What extra care to be taken while installation of CPVC pipes & fittings in a construction?

Some products that are used in construction may contain chemicals that are not compatible with CPVC pipes and fittings. Therefore care must be exercised during installation to make sure that only chemically compatible products (e.g., metal pipe thread sealants, fire caulks, antifreeze, antibacterial lined pipes, etc.) are used during installation.

Overseas office
Head Office
Jain Plastic Park, NH No. 6
Bambhori, Jalgaon (425 001)
Maharashtra, India.
Tel: +91 257 225 8011
Fax: +91 257 225 8111
Copyright © 2014 Jain Irrigation Systems Ltd, All Rights Reserved