CPVC Pipe Systems - General characteristics



Akatherm / FIP, headquartered in Mannheim, Germany, is a leading supplier of CPVC piping components with many years of experience in plastic piping systems. The quality of our products and the services offered by Kwerk.de are subject to a high quality standard. In addition to pipes, sprayed adhesive and threaded fittings, the most varied fittings required for pipeline construction are also available.

Silicone-free manufactured products, flanges and gaskets as well as mounting hardware complete our product range. All the following information has been compiled with the utmost care and knowledge. However, no liability can be derived from the content.

CPVC is an amorphous thermoplastic with a higher chlorine content than PVC-U.
Akaktherm / FIP PVC products are hard PVC materials (without the addition of plasticizers), which, due to their material properties, have been firmly established in industrial piping construction for many years.

The following material data are guidelines, which might differ depending on the chosen treatment. Therefore they can’t be taken over for the finished product.

For further information on all Kwerk GmbH products and services contact our Customer Services Department as detailed below.

Customer Services
Tel: 0049 2602 999730
Fax: 0049 2602 9907329
Email: info@kwerk.de
 


Material properties



The material data given are standard values ​​that may differ depending on the processing method. Therefore, they can not be easily transferred to finished parts.



Characteristic Value Unit
density 1,50 g/cm³
ZOD notched impact strenght at (23°C) 54 J/m
Tensile elongation break 50 %
Thermal conductivity 23°C 0,16 W/(m °C)
VICAT softening point (B/50) 108 °C
oxygen index 60 %
 



Pressure-Temperature-graph



The graph is based on a surrounding temperature of 20°C and water as a medium. The pressures in the chart are valid for a life span of 25 years and an included safety margin of 2.5.






 
 
 



Advantages of the CPVC system



Due to the resulting interactions between the chlorine atoms in the polymer chains, the CPVC material has, in addition to a high degree of hardness and dimensional stability, excellent chemical resistance at higher temperatures (advantage over PVC-U). These properties predestine the material CPVC for the production of pressurized piping systems

 


Chemical resistance



CPVC has excellent chemical resistance, even at high temperatures and media concentrations. Compared to a large number of dilute or concentrated acids and alkalis, alkalis and aliphatics, CPVC has to be classified as resistant. Opposite media like esters, ketones, chlorinated hydrocarbons and some others. Solvents is CPVC swelling or solvable. CPVC is not resistant to strong oxidants. The chemical resistance, however, depends on many factors, such as operating temperature, operating pressure, concentration and other factors. In this case, you can look up the resistance in our resistance list or contact our product management.


Chemical resistance



CPVC has excellent chemical resistance, even at high temperatures and media concentrations. Compared to a large number of dilute or concentrated acids and alkalis, alkalis and aliphatics, CPVC has to be classified as resistant. Opposite media like esters, ketones, chlorinated hydrocarbons and some others. Solvents is CPVC swelling or solvable. CPVC is not resistant to strong oxidants. The chemical resistance, however, depends on many factors, such as operating temperature, operating pressure, concentration and other factors. In this case, you can look up the resistance in our resistance list or contact our product management.



 

Temperature and pressure application areas



CPVC can be used in the operating temperature range from 0 ° C to +90 ° C (short-term), whereby kwerk.de does not recommend the continuous use of CPVC in areas above +80 ° C. Due to the high chlorine content, the advantages of CPVC are particularly evident in the range of elevated operating temperatures. With regard to the internal pressure load capacity of pipes and fittings, we refer to the above "pressure-temperature diagram". For the maximum internal pressure load capacity of fittings, please also note the instructions in the corresponding
Fittings or consult with our product management.

Electrical Properties


CPVC is a polar, amorphous thermoplastic with excellent insulation properties. Due to the resulting possible static charge, CPVC must not be used in applications where there is a risk of ignition or explosion
Like all thermoplastics, CPVC has a relatively high thermal expansion coefficient (0.07 mm / m ° C). This fact must be taken into account in advance when planning the pipeline system. There are various possibilities for this: installation of expansion bends or compensators, as well as the "fixed" clamping via fixed points. Since this requires sound knowledge in dealing with plastics, we recommend carrying out a corresponding system design with PC computer programs
 

Low weight



CPVC systems weigh only half compared to copper pipe installations and only 1/5 compared to steel pipe systems. This ensures easier handling and opens up areas of application in which, in conjunction with the special properties of CPVC, metallic systems can be replaced

Easy connection



CPVC piping components are bonded together by gluing. The production of adhesive joints requires sufficient expertise, i.a. in training courses that can be acquired. Concerning. For gluing, please observe the special specifications of the adhesive suppliers or the adhesive instructions published by KRV (Kunststoffrohrverband e.V.) as well as the corresponding DMS leaflets.


standardize



The pipes, fittings and fittings supplied by kwerk are made according to the most important national and international standards
Standards and guidelines produced, such as:
- DIN 8079
- DIN 8080
- DIN 2999
- ISO 228
- ISO 727
- EN ISO 15493

 

approvals



- Supplier confirmation for use in drinking water applications
- Supplier confirmation for the use of food applications
- WRAS-UK = pipes and fittings for cold water applications
- NSF-USA = Pipes and fittings for cold water applications
- Lloyd’s Register
- TA-Luft approval for 2 and 3-way ball valves
- TA-Luft approval for FK butterfly valves
- TA-Luft approval for diaphragm valves
- DIBt approvals for 2-way ball valves type VKD

tube support



Frequently, pipes with "unhindered change in length" are guided in suspended pipe clamps. The pipe has the possibility to slide in the pipe clamp. Therefore, these constructions must be as stable as possible, yet they must not interfere with the axial movement of the tube. The metallic clamp types must not have any sharp edges or burrs that could damage the pipe. In the immediate vicinity of the clamp, there must be no obstacles (such as moldings, sleeves, welds) that affect the mobility of the pipeline. When designing piping systems with "prevented" length change, guide clamps must be installed. You must ensure that the tube does not buckle laterally due to the occurring compression. The possibility to slide the pipe is not required here in contrast to the sliding clamp.


 

Support for heavy pipeline parts



Fittings, filters, or other heavy piping parts should always be secured independently of the piping to keep inadmissible loads from the piping system, e.g. can be used for intermediate flanges of butterfly valves instead of loose flanges valve mounting plates or ball valves special ball valve holders.
 

Pipe clamp distances



Pipe clamp distances for tubes made of CPVC (PN 10) in a medium with a density <1 g/cm³

Pipe diameter in mm 20°C 30°C 40°C 50°C 60°C 70°C 80°C 90°C
16 1000 900 900 850 750 675 600 500
20 1150 1100 1025 950 875 775 700 600
25 1200 1150 1100 1000 900 800 700 600
32 1250 1200 1100 1000 900 800 700 700
40 1500 1400 1300 1250 1150 1050 900 800
50 1650 1600 1500 1400 1300 1200 1100 900
63 1850 1750 1850 1600 1500 1350 1250 1050
75 2050 1950 1850 1750 1650 1500 1350 1200
90 2250 2100 2000 1900 1800 1650 1500 1300
110 2500 2350 2200 2100 1950 1800 1650 1450
125 2650 2500 2350 2250 2100 1950 1750 1550
140 2800 2650 2500 2350 2200 2050 1850 1650
160 3000 2850 2700 2550 2400 2200 2000 1750
180 3150 3000 2850 2700 2500 2300 2100 1850
200 3350 3150 3000 2850 2650 2450 2200 1950
225 3550 3350 3200 3000 2800 2600 2350 2100
 
* all dimensions in mm



INFORMATION TO OUR DELIVERY PROGRAM



Plastic pipe systems


Overview of plastic pipe systems
Technical information on ABS pipe systems
Technical information on PVC  U pipe systems
Technical information on PVC  U transparent pipe systems
Technical information on PVC  C pipe systems
Technical information on PP pipe systems
Technical information on PP-R pipe systems
Technical information on PE pipe systems
Technical information on PVDF pipe systems

Chemiedur - pipe


Technical information on UP-GF (FRP) pipe systems
UP-GF (FRP) pipes
UP-GF (FRP) molded parts and connection
UP-GF-PP (FRP) molded parts and connection
UP-GF (FRP) adhesive collars
UP-GF (FRP) loose flanges

Plastic pipes


Calculator for cutting pipes
Guidelines for sawing plastic pipe
Leftovers in plastic pipe
Standardization of plastic pipes and molded parts
PVC U pipes deviations
Pressure loss in pipe systems out of PVC U, PVC C and ABS pipe systems
Distinction between Rp, R and G threads
Screw lengths for flange connections

Plastic fittings


PVC U transparent ball valves
Diaphragm valves
Block valves
Butterfly valves
Plastic needle valves
 

Plastic Valves according to ATEX


New EU guideline 2014/34/EU
Plastic Valves in EX zones
Y-Strainers PP-EL DN 15 - DN 50
Check valves PP-EL DN 15 - DN 50
Angle seat valves PP-EL DN 15 - DN 50

Bonding of plastic pipes


Bonding manual
Video showing the bonding of pipes

Plastic welding


Guidelines for extrusion welding


Grids / support grids


GFK grids
Grids out of PP -el electrically conductive
Profile support grids out of PP -el electrically conductive


Molded ventilation parts


Ventilation technology


Chemical hose


PVC transparent hose with fabric inlay


Industrial tanks and chemical containers


Dosing tanks and outer containers 35 – 1000 Liter
Salt dissolving tanks 60 -5000 Liter
Storage tanks and vats
Storage tanks for water
Safety and collecting troughs
Industrial tank delivery program
Dosing tanks with agitator
Dosing tank agitators
Dosing tanks with attachments
Dosing tanks made of sheet material
Customized chemical containers
Dosing tanks with level indicators



 

IBC TANKS/CONTAINERS


IBC screw caps DN 150/DN 200
IBC adapters out of PE
IBC adapters out of PP
MULTI FLEX BLOCK for IBC BULK CONTAINER



Attachment parts for tank construction


Vapor separators
CO2 - absorbes
Manholes
Revision nozzles
Block flange

Filter housings and filter cartridges


PENTEK 3G Slime Line filter housings
PENTEK 3G Standard filter housings
PENTEK Big Blue filter housings
PENTEK PP high temperature filter housings
PENTEK PP all nature filter housings
PENTEK filter bags for Big Blue filter housings
PENTEK surface filter cartridges
PENTEK filter cartridges for depth filtration
PENTEK filter cartridges with activated carbon
CINTROPUR filter systems
CINTROPUR water filters

Flange configurator


Blind flanges, loose flanges,  rectangular flanges

Chemical resistance


Table of chemical resistance for plastic pipe systems
 

Machined plastic parts


Inserts
Screw-in parts
Threaded fittings
Screw fittings

Milled plastic parts


Loose flanges and blind flanges made of sheet material

Static mixers


Static mixers made of plastic

Strainers


Single-type and double-type strainers
Pot strainer DN 300
Angle seat strainer DN 500


Flow meters


Variable area flow meters
Configuration tool for flow meters

Filter presses


Laboratory filter presses

Injection molded parts


Scraper made of PE for filter press


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