Brochure

MALLEABLE IRON REDUCING COUPLING CLASS 300
MALLEABLE IRON STRAIGHT COUPLING CLASS 300
NPS
Length of
Coupling
A
Outside
Dia. of Band
Small End
B (min)
Outside
Dia. of
Large End
B2 (min)
Length of
Threads
Small End
C (min)
Length of
Threads
Large End
C2 (min)
Take
Out
Take
Out
3/8 x 1/4 1.44 0.93 1.20 0.43 0.47 0.31 0.32
1/2 x 3/8 1.69 1.12 1.34 0.47 0.57 0.31 0.44
1/2 x 1/4 1.69 0.93 1.34 0.43 0.57 0.31 0.44
3/4 x 1/2 1.75 1.34 1.63 0.57 0.64 0.33 0.34
3/4 x 3/8 — — — — — — —
3/4 x 1/4 — — — — — — —
1 x 3/4 2.00 1.63 1.95 0.64 0.75 0.32 0.45
1 x 1/2 2.00 1.34 1.95 0.57 0.75 0.32 0.47
1 x 3/8 — — — — — — —
1 x 1/4 — — — — — — —
1 1/4 x 1 2.38 1.95 2.39 0.75 0.84 0.48 0.51
1 1/4 x 3/4 2.38 1.63 2.39 0.64 0.84 0.48 0.64
1 1/4 x 1/2 — — — — — — —
1 1/2 x 1 1/4 2.69 2.39 2.68 0.84 0.87 0.62 0.64
1 1/2 x 1 2.69 1.95 2.68 0.75 0.87 0.62 0.66
1 1/2 x 3/4 2.69 1.63 2.68 0.64 0.87 0.62 0.80
1 1/2 x 1/2 — — — — — — —
2 x 1 1/2 3.19 2.68 3.28 0.87 1.00 0.84 0.87
2 x 1 1/4 3.19 2.39 3.28 0.84 1.00 0.84 0.89
2 x 1 3.19 1.95 3.28 0.75 1.00 0.84 0.91
2 x 3/4 — — — — — — —
2 x 1/2 — — — — — — —
2 1/2 x 2 — — — — — — —
2 1/2 x 1 1/2 — — — — — — —
3 x 2 1/2 — — — — — — —
3 x 2 — — — — — — —
3 x 1 1/2 — — — — — — —
4 x 3 — — — — — — —
4 x 2
NPS
Length of
Coupling
A (min)
Outside
Dia. of
Band
B (min)
Length of
Threads
C (min)
Take
Out
1/4 1.37 0.93 0.43 0.28
3/8 1.62 1.12 0.47 0.40
1/2 1.87 1.34 0.57 0.40
3/4 2.12 1.63 0.64 0.51
1 2.37 1.95 0.75 0.50
1 1/4 2.87 2.39 0.84 0.73
1 1/2 2.87 2.68 0.87 0.71
2 3.62 3.28 1.00 1.05
2 1/2 — — — —
3 — — — —

A
C
B

A
B
C
C2
B2
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