Materials of Construction
Fittings are cast throughout their entire thickness with FLSmidth 450, abrasion-resistant cast iron with 475-550 Brinell hardness.

Availability
Fittings are generally available in nominal diameters ranging from 4 inches to 12 inches (100 to 300 mm) in size.
Wearbacks are available as integral castings or replaceable bolted units.
Standard end style is plain end for compression type couplings and/or flanged adapters. Cast flanged ends are also available in certain configurations. Consult availability chart below for standard size and configurations.
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Item #

Item Name

Dimension A

Dimension B

Dimension C

Weight

Type

Diameter

170-78-4-1983-90 N/A 90° Elbow N/A 17 15/16 in. N/A 24 in. N/A 12 in. N/A 100 lbs N/A Plain End N/A 4 in.
170-78-4-1983-94 N/A 90° Elbow N/A 20 7/8 in. N/A 27 in. N/A 14 15/16 in. N/A 155 lbs N/A Plain End N/A 5 in.
170-78-4-1983-91 N/A 90° Elbow N/A 24 in. N/A 30 1/8 in. N/A 18 1/8 in. N/A 210 lbs N/A Plain End N/A 6 in.
170-78-4-1983-92 N/A 90° Elbow N/A 29 15/16 in. N/A 36 1/16 in. N/A 24 in. N/A 405 lbs N/A Plain End N/A 8 in.
170-78-4-1983-93 N/A 90° Elbow N/A 38 in. N/A 46 1/16 in. N/A 29 15/16 in. N/A 660 lbs N/A Plain End N/A 10 in.
170-78-4-1981-90 N/A 45° Elbow N/A 13 in. N/A 17 in. N/A 12 in. N/A 115 lbs N/A Plain End N/A 4 in.
170-78-4-1981-94 N/A 45° Elbow N/A 14 1/4 in. N/A 18 3/16 in. N/A 14 15/16 in. N/A 140 lbs N/A Plain End N/A 5 in.
170-78-4-1981-91 N/A 45° Elbow N/A 15 9/16 in. N/A 19 1/2 in. N/A 18 1/8 in. N/A 190 lbs N/A Plain End N/A 6 in.
170-78-4-1981-92 N/A 45° Elbow N/A 18 in. N/A 22 in. N/A 24 in. N/A 340 lbs N/A Plain End N/A 8 in.
170-78-4-1981-93 N/A 45° Elbow N/A 23 7/16 in. N/A 28 9/16 in. N/A 29 15/16 in. N/A 625 lbs N/A Plain End N/A 10 in.
170-78-4-1979-90 N/A 22 1/2° Elbow N/A 10 7/16 in. N/A 14 3/8 in. N/A 12 in. N/A 60 lbs N/A Plain End N/A 4 in.
170-78-4-1979-94 N/A 22 1/2° Elbow N/A 11 in. N/A 14 5/16 in. N/A 14 15/16 in. N/A 100 lbs N/A Plain End N/A 5 in.
170-78-4-1979-91 N/A 22 1/2° Elbow N/A 11 11/16 in. N/A 15 5/8 in. N/A 18 1/8 in. N/A 120 lbs N/A Plain End N/A 6 in.
170-78-4-1979-92 N/A 22 1/2° Elbow N/A 12 13/16 in. N/A 16 3/4 in. N/A 24 in. N/A 205 lbs N/A Plain End N/A 8 in.
170-78-4-1979-93 N/A 22 1/2° Elbow N/A 17 in. N/A 22 1/8 in. N/A 29 15/16 in. N/A 345 lbs N/A Plain End N/A 10 in.
170-78-4-1987-90 N/A Tee N/A 10 1/4 in. N/A N/A N/A 57 lbs N/A Plain End N/A 4 in.
170-78-4-1987-92 N/A Tee N/A 11 in. N/A N/A N/A 103 lbs N/A Plain End N/A 6 in.
170-78-4-1987-93 N/A Tee N/A 12 3/16 in. N/A N/A N/A 176 lbs N/A Plain End N/A 8 in.
170-78-4-1982-90 N/A 60° Elbow N/A 15 in. N/A 18 15/16 in. N/A 12 in. N/A 90 lbs N/A Plain End N/A 4 in.
170-78-4-1982-94 N/A 60° Elbow N/A 20 11/16 in. N/A 20 5/8 in. N/A 14 15/16 in. N/A 115 lbs N/A Plain End N/A 5 in.
170-78-4-1982-91 N/A 60° Elbow N/A 18 1/2 in. N/A 22 7/16 in. N/A 18 1/8 in. N/A 155 lbs N/A Plain End N/A 6 in.
170-78-4-1982-92 N/A 60° Elbow N/A 21 15/16 in. N/A 25 7/8 in. N/A 24 in. N/A 295 lbs N/A Plain End N/A 8 in.
170-78-4-1982-93 N/A 60° Elbow N/A 28 5/16 in. N/A 33 7/16 in. N/A 29 15/16 in. N/A 530 lbs N/A Plain End N/A 10 in.
170-78-4-1980-90 N/A 30° Elbow N/A 11 5/16 in. N/A 15 1/4 in. N/A 12 in. N/A 65 lbs N/A Plain End N/A 4 in.
170-78-4-1980-94 N/A 30° Elbow N/A 12 15/16 in. N/A 16 7/8 in. N/A 18 1/8 in. N/A 115 lbs N/A Plain End N/A 6 in.
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