Mechanical Joint Fittings

Other joints (e.g., Fastite, Flex-Ring or Lok-Ring) are available in some sizes. Consult AMERICAN.

Numerals on cuts indicate standard order of specifying size of fitting.

Size
(in.)		 Pressure
Rating1
(psi)		 Dimensions in Inches Weight in Pounds
Run Branch T T 1 M N P S All MJ MJ-PE
& MJ
4 4 250 0.52 0.52 12 3 12 - 95 -
6 4 250 0.55 0.52 14.5 3.5 14.5 - 135 -
6 6 250 0.55 0.55 14.5 3.5 14.5 - 150 -
8 4 250 0.6 0.52 17.5 4.5 17.5 - 190 -
8 6 250 0.6 0.55 17.5 4.5 17.5 - 205 -
8 8 250 0.6 0.6 17.5 4.5 17.5 - 225 -
10 4 250 0.68 0.52 20.5 5 20.5 - 270 -
10 6 250 0.68 0.55 20.5 5 20.5 - 285 -
10 8 250 0.68 0.6 20.5 5 20.5 - 305 -
10 10 250 0.68 0.68 20.5 5 20.5 - 375 -
12 4 250 0.75 0.52 24.5 5.5 24.5 - 375 -
12 6 250 0.75 0.55 24.5 5.5 24.5 - 390 -
12 8 250 0.75 0.6 24.5 5.5 24.5 - 415 -
12 10 250 0.75 0.68 24.5 5.5 24.5 - 500 -
12 12 250 0.75 0.75 24.5 5.5 24.5 - 535 -
14 6 250 0.82 0.55 27 6 27 - 590 -
14 8 250 0.82 0.6 27 6 27 - 615 -
14 10 250 0.82 0.68 27 6 27 - 650 -
14 12 250 0.82 0.75 27 6 27 - 690 -
14 14 250 0.82 0.82 27 6 27 - 755 -
16 6 250 0.89 0.55 30 6.5 30 - 770 -
16 8 250 0.89 0.6 30 6.5 30 - 795 -
16 10 250 0.89 0.68 30 6.5 30 - 830 -
16 12 250 0.89 0.75 30 6.5 30 - 870 -
16 14 250 0.89 0.82 30 6.5 30 - 935 -
16 16 250 0.89 0.89 30 6.5 30 - 1000 -
18 4 250 0.96 0.52 25 1 27.5 - 700 -
18 6 250 0.96 0.55 25 1 27.5 - 730 -
18 8 250 0.96 0.6 25 1 27.5 - 750 -
18 10 250 0.96 0.68 32 7 32 - 1015 -
18 12 250 0.96 0.75 32 7 32 - 1055 -
18 14 250 0.96 0.82 32 7 32 - 1120 -
18 16 250 0.96 0.89 32 7 32 - 1180 -
18 18 250 0.96 0.96 32 7 32 - 1245 -
20 10 250 1.03 0.68 27 1 29.5 - 940 -
20 12 250 1.03 0.75 35 8 35 - 1300 -
20 14 250 1.03 0.82 35 8 35 - 1365 -
20 16 250 1.03 0.89 35 8 35 - 1430 -
20 18 250 1.03 0.96 35 8 35 - 1495 -
20 20 250 1.03 1.03 35 8 35 - 1575 -
24 10 250 1.16 0.68 31.5 0.5 34.5 - 1330 -
24 12 250 1.16 0.75 31.5 0.5 34.5 - 1360 -
24 14 250 1.16 0.82 40.5 9 40.5 - 1930 -
24 16 250 1.16 0.89 40.5 9 40.5 - 1990 -
24 18 250 1.16 0.96 40.5 9 40.5 - 2060 -
24 20 250 1.16 1.03 40.5 9 40.5 - 2135 -
24 24 250 1.16 1.16 40.5 9 40.5 - 2315 -
30 12 250 1.37 0.75 49 10 49 18 3110 3080
30 14 250 1.37 0.82 49 10 49 18 3185 3150
30 16 250 1.37 0.89 49 10 49 18 3250 3220
30 18 250 1.37 0.96 49 10 49 18 3325 3290
30 20 250 1.37 1.03 49 10 49 18 3405 3370
30 24 250 1.37 1.16 49 10 49 18 3580 3550
30 30 250 1.37 1.37 52.5 18.25 52.5 26.25 4580 4550
36 14 250 1.58 0.82 54 15.25 54 23.25 4875 4800
36 16 250 1.58 0.89 54 15.25 54 23.25 4940 4865
36 18 250 1.58 0.96 54 15.25 54 23.25 5005 4935
36 20 250 1.58 1.03 54 15.25 54 23.25 5080 5005
36 24 250 1.58 1.16 54 15.25 54 23.25 5245 5170
36 30 250 1.58 1.37 56 15.25 56 23.25 5800 5725
36 36 250 1.58 1.58 60 19.5 60 27.5 6975 6905
42 20 250 1.78 1.03 60 12 60 - 6655 -
42 24 250 1.78 1.16 60 12 60 - 6810 -
42 30 250 1.78 1.37 63 12 63 - 7280 -
42 36 150 1.78 1.58 66 12.002 66 - 8355 -
42 42 150 1.78 1.78 71 15 71 - 9900 -
48 20 250 1.96 1.03 52 0 66 - 6545 -
48 24 250 1.96 1.16 58 5 64 - 7430 -
48 30 250 1.96 1.37 59 4 64 - 7925 -
48 36 250 1.96 1.58 64 5 68 - 9065 -
48 42 150 1.96 1.78 77 12 77 - 11940 -
48 48 150 1.96 1.96 77 16 77 - 13130 -

Wyes Are Special …

… and if a standard tee and 45° bend, as shown, can satisfactorily meet the requirement—particularly in large-diameter piping—it may be advantageous to use them. Fabricated outlets are also an option for many configurations.

Compact Wyes

Size
(in.)		 Pressure
Rating1
(psi)		 Dimensions in Inches Weight in Pounds
Run Branch T
(nom.)		 T 1
(nom.)		 M N P All MJ
4 4 250 0.34 0.34 9.5 2.5 9.5 45
6 6 250 0.37 0.37 13 3 13 93
8 8 250 0.39 0.39 16 3.5 16 136
10 10 250 0.41 0.41 19 3.5 19 199
12 12 250 0.43 0.43 22.5 4.5 22.5 272
14 14 250 0.51 0.51 25 6 25 465
16 16 250 0.52 0.52 28 6.5 28 575

True Wyes

Size
(in.)		 Pressure
Rating
(psi)		 Dimensions in Inches Weight
(lbs.)
Stem (1) Branches
(2 & 3)		 T T 1 A F
30 20 250 1.37 1.03 25 10 1430
30 24 250 1.37 1.16 25 10 1820
30 30 250 1.37 1.37 25 10 2535
36 24 250 1.58 1.16 28 15 2370
36 30 250 1.58 1.37 28 15 3070
36 36 250 1.58 1.58 28 15 3990
42 30 250 1.78 1.37 31 21 3820
42 36 1503 1.78 1.58 31 21 4725
42 42 1503 1.78 1.78 31 21 5750
48 36 250 1.96 1.58 34 18 5015
48 48 1503 1.96 1.96 34 18 7315

1 Higher-pressure-rated wyes may be available in some sizes. Consult AMERICAN.

2 Dimension “N” for 42″ × 36″ wyes was 16.00" prior to mid-1986.

2 Contact AMERICAN if higher pressure ratings are required.

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