WEEON's PFA lined fitting types include elbows, tees, reducers, and sight glasses. For detailed information on each product, please refer to the WEEON website.                  This specification covers Fluoropolymer(PTFE,PFA,ETFE..etc) lined pipe & fitting applied for piping of corrosive fluids. The contents included the requirement for construction of materials, dimensions together with standard test procedure.                                     This specification covers ANSI150 LBS & JIS 10K Fluoropolymer lined pipe, flange and fittings in nominar diameters from 1/2“ to 24”. The Fluoropolymer lined flange, pipe and fitting assemblies are limited for use from –28℃ to 260℃. Temperature limitations are based on non-corrosive test condition, and temperature limitation may be changed by aggressive environment.                                                                                       The lining is made from Floropolymer resins conforming to the requirment of specification ASTM D1457(PTFE), ASTM D3307(PFA), ASTM D3519(ETFE). 
The lining is made from Fluoropolymer resin meeted specification ASTM D792 shall have a specific gravity from 2.14 to 2.2.                                                                           Each pipe & fitting is provided with a venting system that will release any gas between the liner and the housing Each pipe will have at least 2 vent holes in diameter 0.12(3mm), located about 100mm from the ends. Each fitting shall have one vent holes as least. Reducing flange has no vent hole.