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GRAPH-LOCK® 3128 HOCHDRUCK® is a multi-layer, high strength sheet material composed of .020” thick layers of high purity flexible graphite (carbon >99.85%) and .002” thick layers of 316 stainless steel foil insert. It provides high compressive strength, blow-out resistance, excellent handling properties, and improved tightness.

Nominal Pipe Size: 1
Pressure Rating (lbs): 300
Flange Standard (ASME): ASME B16.5
Thickness (In.): 1/8
Inner Diameter (In.): 1.310
Outer Diameter (In.): 4.880