Expansion Joint Bolt Circle Diameter 17 in Bolt Hole Size 1.00 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 19 in Flange Material Stainless Steel Flange Material Finish Not Applicable Flange Material Grade 304 For Fluid Type Water