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Fluoraz 784
聚四氟乙烯
Greene, Tweed & Co.
產品說明
Sanitary gasket made from Fluoraz® 784 work well in SIP and CIP applications where a low durometer elastomer compound is needed. While EPDMs and FKMs can provide a seal for extended periods, change in physical properties can have adverse effects beyond simple volume swell. A decrease in hardness or drop in modulus signals a reduction in compressive strength. If a sanitary gasket is retorqued ot the installation specification, th gasket will be compressed at a greater level than desired, resulting in increased intrusion into the process stream. An increase in hardness/modulus and a drop in elongation means embrittlement. The seal will be undertorqued, resulting in either leaks or cracking.
Fluoraz 784 is formulated for use in sanitary gaskets and other applications where low sealing force is required, such as sealing sight glasses or as a seal between nonmetal parts. Fluoraz 784 is FDA and USP Class VI compliant, making it a versatile compound for both pharmaceautical and other hygienic fluid handling applications. Fluoraz 784 metal and TOC extractables are an order of magnitude lower than premium competitive FKM formulations, ensuring little or not contamination into the process stream. Fluoraz 784 cna be used as a sanitary gasket in standard applications as long as the torque used to install the gasket is minimal (hand tight).
Fluoraz 784 is alos available in O-rings and custom shapes where a low durometer hardness is desired.
總體
材料狀態 • 已商用：當前有效
供貨地區 • 北美洲
性能特點 • 低萃取物 • 耐化學性良好 • 硬度，低
• 良好的熱封性 • 耐蒸汽
用途 • 墊圈 • 密封 • 藥物
機構評級 • FDA 未評級 • USP 87 • USP 第VI類
外觀 • 棕褐色
形式 • 顆粒料
物理性能 額定值單位制 測試方法
比重 1.56g/cm³ ASTM D297
彈性體 額定值單位制 測試方法
拉伸應力 (100%應變) 2.62MPa ASTM D412
抗張強度 (斷裂) 19.8MPa ASTM D412
伸長率 (斷裂) 340% ASTM D412
硬度 額定值單位制 測試方法
硬度計硬度 (邵氏 A) 70 ASTM D2240
熱性能 額定值單位制
Service Temperature -7 到 232°C
備注
1 一般屬性：這些不能被視為規格。
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