Pillar No. 6616CH This is pure graphite wire mesh inserted, one cut type, high performance packing. Use style 6616CH in combination with style 6710CH. Performance: Temperature -200 to 600oC (Maximum temperature in oxidizing atmosphere: 450oC), Pressure 77.6 MPa {791 kgf/cmВІ} , ASME Class 4500, Applications: High pressure & High temperature valves, LNG valve