Buying Guide
NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: 1.888.234.0557 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455
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Consult price sheet for Made to Order items and
for minimum order quantities.
FITTING REDUCERS
APPROX. DIM. B
NOM. SIZE NET WT./LBS. INCHES
4 x 2 1.64 3
1
/8
4 x 2 1/2 1.83 3
1
/32
4 x 3 2.00 3
1
/32
4 x 3 1/2 2.09 2
5
/8
5 x 2 2.73 4
11
/16
5 x 2 1/2 2.75 4
19
/32
5 x 3 2.76 4
5
/16
5 x 4 3.08 3
13
/16
6 x 2 4.20 5
23
/32
6 x 2 1/2 4.32 5
5
/8
6 x 3 4.38 5
7
/16
6 x 4 4.68 4
15
/16
6 x 5 5.12 4
15
/32
8 x 2 12.12 7
7
/16
8 x 2 1/2 11.42 7
3
/16
8 x 3 10.64 6
15
/16
8 x 4 11.11 6
7
/16
8 x 5 10.35 5
15
/16
8 x 6 11.33 5
15
/32
741
Companion Flange C – Cast
NOM. APPROX. DIM. B DIM. F DIM. G DIM. W
SIZE NET WT./LBS. INCHES INCHES INCHES INCHES
1/2 0.56
1
/8 3
1
/2
7
/32 2
3
/8
3/4 0.71
1
/8 3
7
/8
7
/32 2
3
/4
1 1.27
1
/8 4
1
/4
1
/4 3
1
/8
1 1/4 1.42
1
/8 4
5
/8
1
/4 3
1
/2
1 1/2 1.82
1
/8 5
5
/16 3
7
/8
2 2.76
1
/8 6
3
/8 4
3
/4
2 1/2 4.29
1
/8 7
3
/8 5
1
/2
3 5.26
1
/8 7
1
/2
7
/16 6
4 7.35
1
/8 9
7
/16 7
1
/2
5 9.04
1
/8 10
7
/16 8
1
/2
6 12.68
1
/8 11
1
/2 9
1
/2
NOTE:
Dim. B = Tube Stop to Flange Face
600-2
Fitting Reducer Ftg x C – Wrot
APPROX. DIM. B
NOM. SIZE NET WT./LBS. INCHES
1/4 x 1/8 0.01
17
/32
3/8 x 1/8 0.01
23
/32
3/8 x 1/4 0.01
19
/32
1/2 x 1/4 0.02
27
/32
1/2 x 3/8 0.02
11
/16
5/8 x 1/4 0.03 1
1
/32
5/8 x 3/8 0.04
31
/32
5/8 x 1/2 0.05
7
/8
3/4 x 1/4 0.05 1
3
/32
3/4 x 3/8 0.05 1
1
/8
3/4 x 1/2 0.06 1
1
/8
3/4 x 5/8 0.06
15
/16
1 x 3/8 0.08 1
9
/32
1 x 1/2 0.09 1
1
/4
1 x 5/8 0.09 1
3
/8
1 x 3/4 0.10 1
7
/32
1 1/4 x 1/2 0.13 1
3
/8
1 1/4 x 3/4 0.16 1
1
/2
1 1/4 x 1 0.15 1
5
/16
1 1/2 x 1/2 0.16 1
19
/32
1 1/2 x 3/4 0.20 1
17
/32
1 1/2 x 1 0.21 1
5
/8
1 1/2 x 1 1/4 0.23 1
13
/32
2 x 1/2 0.34 1
15
/16
2 x 3/4 0.34 1
27
/32
2 x 1 0.35 1
27
/32
2 x 1 1/4 0.34 2
3
/32
2 x 1 1/2 0.39 1
31
/32
2 1/2 x 1 0.51 2
9
/32
2 1/2 x 1 1/4 0.50 2
9
/32
2 1/2 x 1 1/2 0.59 2
3
/8
2 1/2 x 2 0.65 1
31
/32
3 x 1 1/4 0.77 3
1
/4
3 x 1 1/2 0.81 2
19
/32
3 x 2 0.99 2
9
/16
3 x 2 1/2 1.03 2
1
/4
3 1/2 x 3 1.48 2
11
/32
Continues…
FLANGES –
CLASS 125
FLANGES –
CLASS 150
771
Companion Flange C – Cast
NOM. APPROX. DIM. B DIM. F DIM. G DIM. W
SIZE NET WT./LBS. INCHES INCHES INCHES INCHES
3/4 1.15
1
/8 3
7
/8
11
/32 2
3
/4
1 1.59
1
/8 4
1
/4
3
/8 3
1
/8
1 1/4 1.91
1
/8 4
5
/8
13
/32 3
1
/2
1 1/2 2.57
1
/8 5
7
/16 3
7
/8
2 4.10
1
/8 6
1
/2 4
3
/4
2 1/2 6.34
1
/8 7
9
/16 5
1
/2
3 8.31
1
/8 7
1
/2
5
/8 6
4 11.85
1
/8 9
11
/16 7
1
/2
5 15.69
1
/8 10
3
/4 8
1
/2
6 19.12
1
/8 11
13
/16 9
1
/2
NOTE:
Dim. B = Tube Stop to Flange Face
775
Threaded Companion Flange
F – Cast
NOM. APPROX. DIM. E DIM. F DIM. W
SIZE NET WT./LBS. INCHES INCHES
INCHES
2 4.13 1 6 4
3
/4
2 1/2 6.43 1
3
/16 7 5
1
/2
3 7.13 1
3
/16 7
1
/2 6
4 11.47 1
5
/16 9 7
1
/2
▲ Also available in Lead-Free*. For
additional details, see our Lead-Free*
literature on www.nibco.com.
*Weighted average lead content ≤ 0.25%
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Revision 7/23/2018
WARNING: This product can expose you to chemicals including lead, which is known to the State of
California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.