C-PVC pressure pipe systems

C-PVC General characteristics

Developed in 1958 by "BF Goodrich" now named "NOVEON", the C-PVC (chlorinated polyvinylchloride) is obtained by the post-chlorination of the PVC suspension process. During this transformation, in the molecular chain of the PVC there is a replacement of alternate monomers of Hydrogen atoms with Chlorine atoms. Through this process it has been possible to obtain a resin with high performance of: thermal stability, chemical and mechanical resistance up to 100 °C. In 1986, FIP was the first European company to produce an integrated system of valves, fittings and pipes named TemperFIP100 (registered trade name for FIP). This was a new complete system of industrial plant products, thanks to the collaboration started in 1985 with the "NOVEON Europe Company". Today the TemperFIP range of pipes, fittings and valves is manufactured by a process of extrusion and injection moulding, the C-PVC CORZAN compound, produced for industrial applications.

In addition to the TemperFIP pipes and fittings, there is a range of valves: ball, butterfly, diaphragm (manual and automatic version), check, valves plus sediment strainers and insertion paddlewheel flowmeter ("FLOWX3" - www.flsnet.it). The production of the TemperFIP range is in accordance with the highest quality standards and in full observance of the environmental practices imposed by current legislation. All products are manufactured in accordance with ISO 9002 certified quality assurance programme. For more information, please visit out website: www.fipnet.it.

The C-PVC TemperFIP system represents one of the most economic solutions within the range of thermoplastic and metal materials. The system overcomes problems that can be encountered in the process and service lines of the industrial fields for the conveyance of corrosive hot chemical fluids and also in the distribution of hot and cold sanitary water. The main reasons for the preference of this system are attributed to the following characteristics of the resin:

- The C-PVC used to produce TemperFIP line is basically inert to most inorganic bases, acids, saline solutions and paraffinical hydrocarbons. It is not recommended for use with polar organic solvent, including chlorinated and aromatic types.

- Electrochemical inertia guarantees stable conditions and high reliability when used for sanitary hot water in all types of heating systems, including solar panels plants.

- The unique molecular structure grants a low coefficient of thermal conductivity (= 0.16 W/m °C according to ASTM C177). It virtually eliminates condensations and offers superior heat retention reducing heat loss through piping walls.

- Low permeability to oxygen and reduced water absorption (0.07% at 23 °C according to ASTM D 570).

- High resistance to ageing, thanks to the chemical and physical properties of the C-PVC resin.

- All components are suitable for conveying potable water, beverages and food. The basic resins employed are all NSF approved.

- The material has excellent mechanical characteristics and good impact strength. These properties make the C-PVC suitable for high service pressure (up to 10-16 bar at 20 °C).

- C-PVC has remarkable thermal stability which allows use up to 100 °C. The VICAT value according to ISO 306 and ASTM D 1525 is around 112 °C for fittings compound and around 121 °C for pipes compound. Creep resistance is excellent, and the hoop stress, according to ASTM D 2837, is equal to 1000 PSI (82 °C, 100,000 hours).

- All TemperFIP products are manufactured by injection moulding and extrusion using C-PVC "CORZAN" compounds, produced by "NOVEON EUROPE". CORZAN is the latest generation of high performance C-PVC compounds produced by high technology plants assuring a top quality production. Furthermore, these compounds present important characteristics of fire performance, in fact the flash ignition temperature is 482 °C and it persists only in extreme conditions, e. g. if the Oxygen concentration is three times higher than the atmospheric one, or only in presence of an external flame source. Flash ignition temperature: 482 °C; Limiting Oxygen Index: 60%; Class UL94 rating: V0.

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