Compression Packing Seal Product Type Compression Packing Seal Overall Length 25 ft Ambient Temperature - Maximum 550 Degrees F Pressure for Pumps - Maximum 300 psi pH - Maximum 14 pH Temperature in Steam - Maximum Not Rated Standards OSHA RoHS Seal Material Graphite PTFE Shaft Speed - Maximum 4 300 fpm pH - Minimum 2 pH Packing Seal Size 1 sq in Pressure for Valves - Maximum Not Rated Includes Lubrication Ambient Temperature - Minimum -400 Degrees F Color Black