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Old 25-07-2008, 06:48 AM   #1
tunegrita_chula
 
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Hola




Como estan todos soy tunegrita_chula espero conocer gente nice soy de caguas y me encanta esta pagina sin duda la mejor
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Old 09-07-2009, 08:28 PM   #2
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PFA Lined valves Inspection and Testing


Polymer batch numbers are linked to the manufacturers material certificate Discrete batches of polymer are not mixed. The bach number of the polymer used is recorded on the moulding log sheet against a specific mould reference. FPA lined valve testing, The PFA we use meets the requirements of ASTM D3307 Type 2. They are also specified as having a restricted melt flow index not exceeding 3 grammes in 10 miniutes. We extensively use our own in house melt flow indexing test equiment to ensure the PFA Lined valves [Solo los Usuarios Registrados pueden ver los LinksRegistrate Aqui!] complies to our strict quality controls.
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Old 09-07-2009, 10:37 PM   #3
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What are PFA


PFA (Perfluoroalkoxy) was developed in order to achieve a true melt-processable fluoropolymer. Its characteristics are such that in service it can be considered as interchangeable with PTFE in terms of its chemical service and temperature and pressure duty. It has the highest permeation performance of the fluoropolymers, exceeding that even of paste extruded PTFE. It also provides the smoothest and least wettable finish of all of the Fluoropolymers. Unfortunately the trade-off is cost, the material being more expensive than PTFE. CRP uses PFA in the production of most of its lined fittings and the Flowserve range of Atomac and Durco PFA lined valve [Solo los Usuarios Registrados pueden ver los LinksRegistrate Aqui!] is available lined in PFA.
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