... for sealing hot water, steam, oil, heat exchange fluids, acids, alkalis, ammonia, hydrogen, orga 1.Graphite packing can be used for sealing hot ... water, steam, oil, heat exchange fluids, acids, alkalis, ammonia ... 3.Working pressure: ≤ 35Mpa 4.Specifications: 3X3mm ~ 50X50mm Flexible graphite packing