CPVC PIPES & FITTINGS


Hari Plaast CPVC Pipes & Fittings are made from the specialty thermoplastic known as post Chlorinated Ploy Vinyl Chloride and met all the requirments of ASTM D 2846 and IS 15778:2007.The pipes and fittings are available in complete range from 1/2" to 2" sizes.The pipes are available in SDR 11 and SDR 13.5 pressure class and fittings are available in SDR 11 pressure class.


FIELD OF APPLICAITONS:

Hot and Cold water distribution in residential,commercial and public projects,high and low rise buildings,corporate houses and academic institutes,solar heater application etc.


ADVANTAGES :


  • Excellent resistance to corrosion and chemical attacks.
  • Lowest bacterial growth.
  • Tough and rigid material.
  • No Scale, pit or leach formation
  • Unaffected by chlorine in the water
  • Hot and cold water compatible
  • Low thermal expansion
  • Fire resistance
  • Simple and leak proof joints
  • Maintenance free
  • Cost effective
  • Approved World wide.

MECHANICAL PROPERTIES:


The principal mechanical difference between CPVC and PVC is that CPVC is significantly more ductile,allowing greater Flexure and crush resistance.Additionally,the mechanical strength of CPVC makes it a viable candidate to replace many types of metal pipe in conditons where metal's susceptibility to corrosion.


PHYSICAL PROPERTIES:


CPVC shares most of the features and properties of PVC.It is also readily workable,including machining,welding,and forming.Beacuse of its excellent corrosion resistance at elevated temperatures,CPVC is ideally suited for self-supporting.



DIMENSIONS OF HARI PLAAST CPVC PIPES MADE TO IS 15778:2007/ASTM D 2846


Nominal Dia (mm) Outer Diameter (mm) SDR 11 SDR 13.5
Wall Thickness (mm) Working Pr. Kgf/cm2 at

Wall Thickness

(mm)

Working Pr. Kgf/cm2 at
  Min Max Min Max 23'c 82'c Min Max 23'c 82'c
15 15.8 16.0 1.7 2.2 28.10 7.0 1.4 1.9 22.50 5.6
20 22.1 22.3 2.0 2.5 28.10 7.0 1.7 2.2 22.50 5.6
25 28.5 28.7 2.6 3.1 28.10 7.0 2.1 2.6 22.50 5.6
32 34.8 35.0 3.2 3.7 28.10 7.0 2.6 3.1 22.50 5.6
40 42.1 41.4 3.8 4.3 28.10 7.0 3.1 3.6 22.50 5.6
50 53.9 54.1 4.9 5.5 28.10 7.0 4.0 4.0 22.50 5.6

Hari Plaast CPVC pipes and fittings are joined by the solvent cementing process a reliable joining technique field-proven for more than 40 years.When properly conducted,this method provides a strong,homogenous joining area in which the mating surfaces are chemically fused together,producing a strong,leak-tight seal when cured.Prior to solvent cementing,appropriate safety precautons should be taken.

Since quality of the solvent cement plays the important role and influences the joint strength it is recommended to use specially formulated solvent cement supplied the company for trouble free performance of the system.


CONSUMPTON OF SOLVENT CEMENT


 
No.of fittings per Ltr. 25 20 25 32 40 50
Pipe Size (mm) 1200 750 500 450 325 225

SET & CURE TIMES


Assembled joints must be allowed to set and cure properly prior to testing the system.Set and cure times are a function of type of cement used,pipe size,temperature,humidity,and tightness of fit.Drying time is faster for drier environments,smaller sizes,higher temperatures and tighter fits.The assemly must be allowed to set without any stress on the joint for one to five minutes depending on the pipe size and temperatue.Followiing the initial set period, the assembly can be handled carefully.Failure to do so will result in joint failure.


CURING TIME FOR OPERATING/TEST PRESSURE UPTO 12 Kgf/cm2


Ambient Temp Upto 32 mm 4o to 50 mm
17' to 48'c 1 hr 2 hr
5' to 17' 3 hr 4 hr
Upto 5'c 8 hr 16 hr

CHEMICAL RESISTANCE OF CPVC


Chemicals Concentration 200c 600c 800 c
Hydrochloric Acid 20% Excellent Excellent Good
Hydrochloric Acid 35% Excellent Excellent Good
Nitic Acid 40% Excellent Fair Fair
Nitic Acid 60% Good Fair Not good
Sulphuric Acid 30% Excellent Good Good
Sulphuric Acid 50% Excellent Good Not good
Sulphuric Acid 100% Good Not good Not good
Acetic Acid 60% Excellent Fair Fair
Acetic Acid 95% Good Not good Not good
Carbonic Acid 100% Excellent Fair Fair
Caustic Soda 40% Excellent Excellent Good
Caustic Soda 60% Excellent Excellent Good
Sodium Chloride Saturated Excellent Excellent Good
Sodium Carbonate Saturated Excellent Excellent Good
Sodium Sulphates Saturated Excellent Excellent Good
Hydrogen Peroxide <30% Excellent Excellent Not good
Ammonium Carbonate Saturated Excellent Excellent Good
Methanol 100% Excellent Fair Not available
Ethanol 100% Excellent Good Not available
Isopropanol 100% Excellent Good Good
Butanol 100% Excellent Good Fair
Glycerin 100% Excellent Excellent Excellent
Acetone 100% Not available Not available Not available
Methyl Ethyl 100% Not available Not available Not available
Ketone 100% Not available Not available Not available
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