Expansion Joint Bolt Circle Diameter 11 3/4 in Bolt Hole Size 0.875 in Bolt Hole Threading Unthreaded Burst Pressure 853 psi Compression Distance 2 3/8 in Connection Type Flanged Expansion Distance 1 3/8 in Expansion Joint Type Double Bulb Features Absorbs Water Pulsation and Minimizes Water Hammering Applicable for Suction and Delivery (Discharge) Flange Diameter 13 1/2 in Flange Material Stainless Steel Flange Material Finish Not Applicable Flange Material Grade 304