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Carbon Steel Backing Rings for Fiberglass Pipe

This carbon steel backing ring sits behind molded fiberglass flanges to effectively disperse bolt torque and eliminate cracked flanges.

Showing all 11 results

Item # Legacy Part Number Size Inside Diameter (I.D.) Outside Diameter (O.D.) Thickness (T) Bolt Circle (B.C.) Number of Holes Holes Diameter (H.D.) Weight Each
01CS-SFP 357-SFP 1″ 2.07″ 4-1/4″ 9/16″ 3-1/8″ 4 5/8″ 1.5 lb
0150CS-SFP 359-SFP 1-1/2″ 2.94″ 5″ 9/16″ 3-7/8″ 4 5/8″ 2 lb
02CS-SFP 268-SFP 2″ 3.46″ 6″ 9/16″ 4-3/4″ 4 3/4″ 3 lb
03CS-SFP 172-SFP 3″ 4.65″ 7-1/2″ 9/16″ 6″ 4 3/4″ 4 lb
0250CS-SFP 182-SFP 2-1/2″ 4.05″ 7″ 9/16″ 5-1/2″ 4 3/4″ 3.5 lb
04CS-SFP 149-SFP 4″ 5.94″ 9″ 9/16″ 7-1/2″ 8 3/4″ 5 lb
06CS-SFP 126-SFP 6″ 7.82″ 11″ 9/16″ 9-1/2″ 8 7/8″ 7 lb
08CS-SFP 144-SFP 8″ 10.15″ 13-1/2″ 9/16″ 11-3/4″ 8 7/8″ 9 lb
10CS-SFP 150-SFP 10″ 12.55″ 16″ 9/16″ 14-1/4″ 12 1″ 11 lb
12CS-SFP 152-SFP 12″ 14.71″ 19″ 9/16″ 17″ 12 1″ 16 lb
14CS-SFP 184-SFP 14″ 16.50″ 21″ 9/16″ 18-3/4″ 12 1-1/8″ 19 lb