FIP Valve
PVC-U General characteristics
Developed in 1930 in Germany, the PVC-U (unplasticized polyvinyl chloride) is obtained by the process of polymerization vinyl chloride (a gaseous monomer). An highly reliable resin with high performance of thermal stability, chemical and mechanical resistance up to 60° C , is obtained by the presence of chlorine in the molecule of PVC-U.
The different formulations obtained by the addition of suitable additives and stabilizers, make PVC-U the more versatile of the plastic materials, having several possibilities to be used in many applications of the fluids in pressure.
The PVC-U represents one of the most economic solutions within the range of thermoplastic and metal materials. The system overcomes problems which can be encountered in the service lines of the industrial fields for the conveyance of corrosive chemical fluids and also in the distribution-treatment of general water. The main reasons for the preference of system are attributed to the following characteristics of the resin :
- The PVC-U is basically inert to most inorganic bases, acids, saline solutions and paraffinical/aliphatic hydrocarbons. It is not recommended for use with polar organic solvent, including chlorinated and aromatic types.
- The unique molecular structure grants a low coefficient of thermal conductivity (λ = 0,15 W/m °C according to ASTM C177). It virtually eliminates condensation and offers superior heat retention reducing heat loss through piping walls.
- Low permeability to oxygen and reduced water absorption (0.1% at 23° C according to ASTM D 570).
- Good resistance to ageing, thanks to the chemical and physical properties of the PVC-U resin.
- All components are suitable for conveying potable water, beverages and food. The basic resins employed are all NSF approved.
- The materials has excellent mechanical characteristics and good impact strength. These properties make the PVC-U suitable for high service pressure (up to 4 - 6 - 10 - 16 bar at 20° C).
- The PVC-U compounds, presents important characteristics of fire performance, in fact the flash ignition temperature is 399° C and it persists only in extreme conditions, e.g. if the Oxygen concentration is two times higher than the atmospheric one, or only in presence of external flame source. Flash ignition temperature : 399° C
Limiting Oxygen Index : 45%
Class UL 94 rating : V0
- The possibility to choice between different jointing systems make low costs in the operations of installation.
Approvals and quality marks
- IRH
FIP PVC-U ball valves are acknowledged by IRH for ACS Certificated N. 04 ACC NY 129
- BUREAU VERITAS (France)
Certificate N.07123/C0BV Suitability of U-PVC fortransport and treatment ofsanitary water and of conditio-ning for naval applications.
- GOST-R
FIP PVC-U valves are certified GOST-R in accompliance with Russian safety and quality regulation. Certificate No POCC IT.AI077.B06265
- FIP PVC-U valves are certified in accompliance with Ucrainian hygienic, safety and quality regulation. Certificate N.UA1.094.0052575-04
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TA-Luft
FIP PVC-U valves have been "TA-Luft" tested and certified by MPA Stuttgart in compliance with requirements of Technical Instruction on Air Quality Control TA-Luft / VDI 2440
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DIBt (Deutsche Institut für Bautechnik)
FIP PVC-U valves have been tested and certified by DIBt Certificate N.Z-40.23-434
