Smith-Blair 411 Steel Fabricated Coupling

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Price range: $76.88 through $3,977.79

Smith-Blair 411 Steel Fabricated Coupling

Key Features:

Meets applicable AWWA C219 Standards
Allows for limited expansion and contraction
Will dampen vibration to reduce pipe fatigue
Easy to install, no special pipe end preparation required
Available in a wide variety of pipe O.D. sizes and sleeve lengths
Most sizes will accommodate anchor studs to restrain the joints
Can be custom made to fit odd O.D.s or other unusual application
Provided with or without pipe stops to accommodate customer needs
Has good deflection capabilities, allows change in piping direction without the need of elbows, bends
Steel sizes built to specific O.D. and Ductile I on sizes are built with range to accommodate the variances in Ductile Iron pipe O.D.s

SKU: N/A

411 Coupling OD Inches

411 Sleeve Length

Clear

Description
Dimensional Data
Specifications
Additional information
Reviews (0)

Description

Description:

The Smith-Blair 411 Steel Fabricated Coupling is a bolted sleeve type coupling for joining plain end pipe of the same diameters.

Application:

Joining plain end pipe without the need for welding or special pipe fittings

Key Features:

Meets applicable AWWA C219 Standards
Allows for limited expansion and contraction
Will dampen vibration to reduce pipe fatigue
Easy to install, no special pipe end preparation required
Available in a wide variety of pipe O.D. sizes and sleeve lengths
Most sizes will accommodate anchor studs to restrain the joints
Can be custom made to fit odd O.D.s or other unusual application
Provided with or without pipe stops to accommodate customer needs
Has good deflection capabilities, allows change in piping direction without the need of elbows, bends
Steel sizes built to specific O.D. and Ductile I on sizes are built with range to accommodate the variances in Ductile Iron pipe O.D.s

Materials Specifications (subject to change):

SLEEVE: ASTM A53, ASTM A512 or Carbon Steel having minimum yield of 30,000 PSI
FOLLOWERS: Ductile Iron ASTM A536, Steel AISI C 1020, or A715 Grade 80 HSLA Steel. Designed for a high strength-to-weight ratio. Follower thickness determined by coupling size
BOLTS & NUTS: High strength, low alloy Steel with heavy semi-finished hexagon nuts Optional: Stainless Steel and Carbon Steel ASTM A307 electro-galvanized with di-chromate seal
GASKET: Nitrile (Buna N) NSF 61 compounded to produce superior storage and performance characteristics while resisting water, acids, alkalies, most (aliphatic) hydrocarbon fluids, and other chemical
Temperature Range: -20°F to 180°F
FINISH: Flexi-Coat® Fusion Bonded Epoxy Finish

Working Pressure:

Up to 150 PSI

Pipe Applications:

All Types. HDPE requires use of stiffeners. Contact for any questions.

Sizes (in inches):

1⁄2 , 3⁄4, 1, 11⁄4, 11⁄2, 2, 21⁄2, 3, 3-4, 4, 4-5, 6, 8, 10, 12, 12-14, 14, 16, 18, 20, 24, 30, 36, 42, 48, 54.
NOTE: Larger sizes available upon request.

More Information:

The Smith-Blair 411 Steel Fabricated Coupling is a reliable bolted sleeve-type coupling designed for joining plain-end pipes of the same diameters. Built to meet the stringent AWWA C219 standards, it ensures top-tier performance and durability for water, wastewater, and industrial piping systems. Its ability to accommodate limited expansion and contraction provides flexibility in systems where thermal or mechanical forces could affect pipe alignment. Additionally, the coupling dampens vibrations, which helps reduce pipe fatigue, making it particularly useful in high-stress environments.

One of the standout features of the Smith-Blair 411 is its ease of installation. No special pipe end preparation is needed, allowing for a straightforward installation process. This can reduce labor costs and time, making it an efficient option for both routine maintenance and emergency repairs. The coupling is available in a wide variety of outside diameter (O.D.) sizes and sleeve lengths, making it adaptable to a range of piping systems. For non-standard applications, it can be custom-made to fit odd O.D.s or other unusual specifications.

Another advantage of the Smith-Blair 411 coupling is its ability to accommodate anchor studs, which help restrain the joints and ensure the coupling remains securely in place, particularly in high-pressure systems. The coupling can be provided with or without pipe stops, depending on the specific needs of the installation, further enhancing its versatility.

In addition, the coupling has excellent deflection capabilities, allowing for changes in pipe direction without the need for elbows or bends. This feature reduces the number of fittings required and simplifies the piping layout. The Smith-Blair 411 is available for both steel and ductile iron pipes, with ductile iron sizes designed to accommodate the slight variances in O.D. dimensions.

Overall, the Smith-Blair 411 Steel Fabricated Coupling is a durable, adaptable, and easy-to-install solution for connecting plain-end pipes in a variety of applications.

Total Angular Deflection Per Join

FOR PIPE O.D. RANGES SLEEVE LENGTH

INCHES MM 5"
127MM 7"
178MM 10"
250MM

0.84 thru 2.38 21 thru 60.5 7" 7" 7"

2.50 thru 13.50 63.5 thru 342.9 4" 4 1/2" 4 1/2"

13.60 thru 24.00 345.4 thru 610 2 1/2" 4" 4 1/2"

24.10 thru 36.00 612 thru 914 2" 3 1/2" 4"

36.10 thru 42.00 917 thru 1067 - 3" 3 1/2"

42.10 thru 60.00 1323 thru 1524 - 2 1/2" 3"

60.10 thru 80.00 1527 thru 2032 - - 2 1/2"

80.10 thru 100.00 2035 thru 2540 - - 2"

Dimensions

Standard Lengths for Steel Sizes

Nom. Pipe Size In. Pipe O.D. Inches CATALOG NO.
BUNA-N GASKET SLEEVE THK. X LGTH. IN. Flange O.D. Inches Bolts Approx. Ship Wt Lbs

(A) (B) No. Dia. In. Lgth. In. (L)

1/2 0.084 411-00008401-003 .120 4 1/2 3 5/8 2 1/2 7 2 1/4

3/4 1.05 411-00010501-003 .120 4 1/2 3 7/8 2 1/2 7 2 1/2

1 1.32 411-00013201-003 .120 5 4 1/4 2 1/2 7 3 1/4

1 1/4 1.66 411-00016601-003 .120 5 4 9/16 2 1/2 7 4

1 1/2 1.90 411-00019001-003 .120 5 4 13/16 2 1/2 7 4 1/4

2 2.00 411-00020001-003 .120 5 4 13/16 2 1/2 7 4 1/4

2 2.38 411-00023801-003 .120 5 5 5/16 2 1/2 7 4 3/4

2 2.38 411-00023851-003 .120 5 5 11/16 2
3 5/8 8 5 1/2

2 2.38 411-00023861-003 .120 5 5 11/16 3 5/8 8 6 1/2

2 2.38 411-00023802-003 .120 7 5 11/16 3 5/8 10 1/2 9 1/2

2 1/2 2.88 411-00028801-003 .203 5 6 1/2 3 5/8 8 12 3/4

3 3.00 411-00030001-003 .203 5 6 9/16 3 5/8 8 12 3/4

3 3.50 411-90035001-003 .180 5 8 3/100 3 5/8 6 11 1/2

3 3.50 411-00035051-003 .180 5 7 9/100 4 5/8 8 12 1/4

3 3.50 411-90035002-003 .180 7 8 3/100 3 5/8 8 14 1/2

3 1/2-4 4.00 411-00040001-003 .188 5 7 9/16 4 5/8 8 17 1/2

+4 4.50 411-90045001-003 .188 5 9 1/20 4 5/8 6 13

+4 4.50 411-90045002-003 .188 7 9 1/20 4 5/8 8 15 1/2

4 1/2-5 5.00 411-00050001-003 .250 5 8 5/8 4 5/8 8 20 1/2

5 5.56 411-00055601-003 .250 5 9 3/16 4 5/8 8 20 1/2

5 5.56 411-00055602-003 .250 7 9 3/16 4 5/8 10 1/2 23 1/2

5 5.56 411-00055603-003 .250 10 9 3/16 4 5/8 13 1/2 31 1/2

+6 6.63 411-90066301-003 .250 5 11 1/2 6 5/8 6 22 3/4

+6 6.63 411-90066302-003 .250 7 11 1/2 6 5/8 8 26

+6 6.63 411-90066303-003 .250 10 11 1/2 6 5/8 10 1/2 34 1/4

+8 8.63 411-90086301-003 .250 5 13 1/2 6 5/8 6 28

+8 8.63 411-90086302-003 .250 7 13 1/2 6 5/8 8 32

+8 8.63 411-90086303-003 .250 10 13 1/2 6 5/8 10 1/2 42

10 10.00 411-00100001-003 .250 5 14 5/16 8 5/8 8 33

10 10.00 411-00100002-003 .250 7 14 5/16 8 5/8 10 1/2 38

10 10.00 411-00100003-003 .250 10 14 5/16 8 5/8 13 1/2 50

+10 10.75 411-90107501-003 .250 5 15 36/59 8 5/8 6 34

+10 10.75 411-90107502-003 .250 7 15 36/59 8 5/8 8 40

+10 10.75 411-90107507-003 .375 7 15 36/59 8 5/8 8 49

+10 10.75 411-90107503-003 .250 10 15 36/59 8 5/8 10 1/2 52

12 12.00 411-00120001-003 .250 5 16 5/16 8 5/8 8 37

12 12.00 411-00120002-003 .250 7 16 5/16 8 5/8 10 1/2 44

12 12.00 411-00120003-003 .250 10 16 5/16 8 5/8 13 1/2 56

+12 12.75 411-90127501-003 .250 5 17 36/59 8 5/8 6 39

+12 12.75 411-90127502-003 .250 7 17 36/59 8 5/8 8 46

+12 12.75 411-90127507-003 .375 7 17 25/41 8 5/8 8 56

+12 12.75 411-90127503-003 .250 10 17 36/59 8 5/8 10 1/2 59

14 14.00 411-00140001-003 .250 5 18 5/16 6 5/8 8 41

14 14.00 411-00140002-003 .250 7 18 5/16 6 5/8 10 1/2 48

14 14.00 411-00140007-003 .375 7 18 7/16 6 5/8 10 1/2 75

14 14.00 411-00140008-003 .375 10 18 7/16 6 5/8 13 1/2 94

16 16.00 411-00160002-003 .250 7 20 5/16 8 5/8 10 1/2 56

16 16.00 411-00160007-003 .375 7 20 7/16 8 5/8 10 1/2 87

16 16.00 411-00160003-003 .250 10 20 5/16 8 5/8 10 1/2 72

16 16.00 411-00160008-003 .375 10 20 7/16 8 5/8 10 1/2 108

18 18.00 411-00180002-003 .250 7 22 7/16 8 5/8 10 1/2 81

18 18.00 411-00180007-003 .375 7 22 7/16 8 5/8 10 1/2 96

18 18.00 411-00180003-003 .250 10 22 7/16 8 5/8 10 1/2 109

18 18.00 411-00180008-003 .375 10 22 7/16 8 5/8 13 1/2 119

20 20.00 411-00200002-003 .250 7 24 7/16 10 5/8 10 1/2 91

20 20.00 411-00200007-003 .375 7 24 7/16 10 5/8 10 1/2 107

20 20.00 411-00200003-003 .250 10 24 7/16 10 5/8 13 1/2 122

20 20.00 411-00200008-003 .375 7 24 7/16 10 5/8 13 1/2 134

22 22.00 411-00220002-003 .250 7 26 7/16 10 5/8 10 1/2 98

22 22.00 411-00220007-003 .375 7 26 7/16 10 5/8 10 1/2 116

22 22.00 411-00220003-003 .250 10 26 7/16 10 5/8 13 1/2 132

22 22.00 411-00220008-003 .375 10 26 7/16 10 5/8 13 1/2 145

24 24.00 411-00240002-003 .250 7 28 7/16 10 5/8 10 1/2 106

24 24.00 411-00240007-003 .375 7 28 7/16 10 5/8 10 1/2 125

24 24.00 411-00240003-003 .250 10 28 7/16 10 5/8 13 1/2 142

24. 24.00 411-00240008-003 .375 10 28 7/16 10 5/8 13 1/2 156

Standard Length Sleeves 1/2" thru 12" Steel Pipe Sizes. + Indicates couplings furnished with Steel “Z" section, High Strength Follower Flanges.The basic design of bolted compression couplings does not provide for anchoring the pipes against pull-out. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Couplings working pressures depend on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross-section, follower type, and number of bolts. Consult Smith-Blair® regarding your specific coupling pressure requirements.

Standard Length Sleeves 1/2" thru 12" Steel Pipe Sizes
+ Indicates couplings furnished with Steel “Z" section, High Strength Follower Flanges. The basic design of bolted compression couplings does not provide for anchoring the pipes against pull-out. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Couplings working pressures depend on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross-section, follower type, and number of bolts. ConsultSmith-Blair® regarding your specific coupling pressure requirements.

Standard Length Sleeves 14" thru 24" Steel Pipe Sizes
The basic design of bolted compression couplings does not provide for anchoring the pipes against pull-out. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Couplings working pressures depend on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross-section, follower type, and number of bolts. Consult Smith-Blair® regarding your specific coupling pressure requirements.

Standard Lengths for Ductile Iron and Cast Iron Sizes

Nom. Pipe Size In. Pipe O.D. Inches CATALOG NO.
BUNA-N GASKET SLEEVE THK. X LGTH. IN. Flange O.D. Inches Bolts Approx. Ship Wt Lbs

(A) (B) No. Dia. In. Lgth. In. (L)

2 2.34-2.56 411-00025002-003
411-00025003-003 .216
.216 7
10 6.3/16
6.3/16 2
2 5/8
5/8 10 1/2
13 1/2 13.5
16.3

2 1/2 2.75-2.88 411-00027502-003
411-00027503-003 .203
.203 7
10 6.3/16
6.3/16 3
3 5/8
5/8 11
14 14.8
17.8

3 3.75-3.86 411-00038002-003
411-00038003-003 .237
.237 7
10 7 13/16
7 13/16 3
3 5/8
5/8 10 1/2
13 1/2 20.3
24.6

3-4 3.87-4.04 411-00039602-003
411-00039603-003 .188
.188 7
10 7 11/32
7 11/32 4
4 5/8
5/8 11
14 21.4
25.7

4 4.07-4.19 411-00041302-003
411-00041303-003 .188
.188 7
10 8 3/32
8 3/32 4
4 5/8
5/8 11
14 22.3
26.8

4 4.74-5.06 411-00050002-003
411-00050003-003 .250
.250 7
10 8 19/32
8 19/32 4
4 5/8
5/8 11
14 27
32.5

4-5 5.00-5.16 411-00051002-003
411-00051003-003 .250
.250 7
10 9 5/32
9 5/32 4
4 5/8
5/8 11
14 27.5
33.1

6 6.84-6.96 411-00069002-003
411-00069003-003 .250
.250 7
10 10 9/16
10 9/16 5
5 5/8
5/8 11
14 37.2
44.8

6 7.04-7.16 411-00071002-003
411-00071003-003 .250
.250 7
10 10 9/16
10 9/16 5
5 5/8
5/8 11
14 38.3
46.1

6 7.14-7.26 411-00072002-003
411-00072003-003 .250
.250 7
10 11 5/16
11 5/16 5
5 5/8
5/8 11
14 38.8
46.8

8 8.91-9.30 411-00090502-003
411-00090503-003 .250
.250 7
10 12 13/16
12 13/16 6
6 5/8
5/8 11
14 48.8
58.8

8 9.30-9.50 411-00094202-003
411-00094203-003 .250
.250 7
10 13 23/32
13 23/32 6
6 5/8
5/8 11
14 50.8
61.2

10 11.04-11.16 411-00111002-003
411-00111003-003 .250
.250 7
10 15 1/8
15 1/8 7
7 5/8
5/8 11
14 59.9
72.1

10 11.34-11.46 411-00114002-003
411-00114003-003 .250
.250 7
10 15 1/8
15 1/8 7
7 5/8
5/8 11
14 61.5
74.1

10 11.84-12.00 411-00119502-003
411-00119503-003 .250
.250 7
10 16
16 8
8 5/8
5/8 11
14 64.5
77.7

12 13.14-13.26 411-00132007-003
411-00132008-003 .375
.375 7
10 17 5/8
17 5/8 8
8 5/8
5/8 11
14 71.3
85.8

12 13.44-13.56 411-00135007-003
411-00135008-003 .375
.375 7
10 17 7/8
17 7/8 8
8 5/8
5/8 11
14 72.9
87.8

12-14 13.88-14.06 411-00139207-003
411-00139208-003 .375
.375 7
10 18 15/16
18 15/16 6
6 5/8
5/8 11
14 75.2
90.5

14 15.30 411-00153007-003
411-00153008-003
411-00153015-003
411-00153016-003 3/8
3/8
3/8
3/8 7
10
16
24 19 7/8
19 7/8
19 7/8
19 7/8 8
8
8
8 5/8
5/8
5/8
5/8 11
14
20
28 86
107
144
196

14 15.65 411-00156507-003
411-00156508-003
411-00156515-003
411-00156516-003 3/8
3/8
3/8
3/8 7
10
16
24 20 3/16
20 3/16
20 3/16
20 3/16 8
8
8
8 5/8
5/8
5/8
5/8 11
14
20
28 88
109
146
200

16 17.40 411-00174007-003
411-00174008-003
411-00174015-003
411-00174016-003 3/8
3/8
3/8
3/8 7
10
16
24 21 15/16
21 15/16
21 15/16
21 15/16 8
8
8
8 5/8
5/8
5/8
5/8 11
14
20
28 92
119
160
218

16 17.80 411-00178007-003
411-00178008-003
411-00178015-003
411-00178016-003 3/8
3/8
3/8
3/8 7
10
16
24 22 3/8
22 3/8
22 3/8
22 3/8 8
8
8
8 5/8
5/8
5/8
5/8 11
14
20
28 93
120
162
221

18 19.50 411-00195007-003
411-00195008-003
411-00195015-003
411-00195016-003 3/8
3/8
3/8
3/8 7
10
16
24 24 1/16
24 1/16
24 1/16
24 1/16 10
10
10
10 5/8
5/8
5/8
5/8 11
14
20
28 107
133
179
245

18 19.92 411-00199207-003
411-00199208-003
411-00199215-003
411-00199216-003 3/8
3/8
3/8
3/8 7
10
16
24</td 24 1/2
24 1/2
24 1/2
24 1/2 10
10
10
10 5/8
5/8
5/8
5/8 11
14
20
28 109
135
182
249

20 21.60 411-00216007-003
411-00216008-003
411-00216015-003
411-00216016-003 3/8
3/8
3/8
3/8 7
10
16
24 26 1/8
26 1/8
26 1/8
26 1/8 10
10
10
10 5/8
5/8
5/8
5/8 11
14
20
28 117
145
195
266

20 22.06 411-00220607-003
411-00220608-003
411-00220615-003
411-00220616-003 3/8
3/8
3/8
3/8 7
10
16
24 26 5/8
26 5/8
26 5/8
26 5/8 10
10
10
10 5/8
5/8
5/8
5/8 11
14
20
28 119
148
200
271

24 25.80 411-00258007-003
411-00258008-003
411-00258015-003
411-00258016-003 3/8
3/8
3/8
3/8 7
10
16
24 30 3/8
30 3/8
30 3/8
30 3/8 12
12
12
12 5/8
5/8
5/8
5/8 11
14
20
28 138
171
231
315

24 26.32 411-00263207-003
411-00263208-003
411-00263215-003
411-00263216-003 3/8
3/8
3/8
3/8 7
10
16
24 30 7/8
30 7/8
30 7/8
30 7/8 12
12
12
12 5/8
5/8
5/8
5/8 11
14
20
28 140
174
235
321

Standard Length Sleeves 1/2" thru 12" Steel Pipe Sizes. + Indicates couplings furnished with Steel “Z" section, High Strength Follower Flanges.The basic design of bolted compression couplings does not provide for anchoring the pipes against pull-out. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Couplings working pressures depend on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross-section, follower type, and number of bolts. Consult Smith-Blair® regarding your specific coupling pressure requirements.

Standard Length Sleeves 1/2" thru 12" Steel Pipe Sizes
+ Indicates couplings furnished with Steel “Z" section, High Strength Follower Flanges. The basic design of bolted compression couplings does not provide for anchoring the pipes against pull-out. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Couplings working pressures depend on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross-section, follower type, and number of bolts. ConsultSmith-Blair® regarding your specific coupling pressure requirements.

Standard Length Sleeves 14" thru 24" Steel Pipe Sizes
The basic design of bolted compression couplings does not provide for anchoring the pipes against pull-out. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Couplings working pressures depend on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross-section, follower type, and number of bolts. Consult Smith-Blair® regarding your specific coupling pressure requirements.

Large Diameter Standard Lengths

Nom. Pipe Size In. Pipe O.D. Inches Sleeve
THK. X LGTH
(A) (B)
Inches Follower
Flange O.D.
Inches Bolts Catalog Number Approx. Ship
Wt Lbs

NO. DIA. X LGTH (L)

30 30.00 1/4 x 7 34 7/16 12 5/8 x 11 411-00300002-003 132

30 30.00 1/4 x 10 34 7/16 12 5/8 x 14 411-00300003-003 152

30 30.00 3/8 x 7 34 7/16 12 5/8 x 11 411-00300007-003 155

30 30.00 3/8 x 10 34 7/16 12 5/8 x 14 411-00300008-003 187

30 30.00 1/2 x 10 34 7/16 12 5/8 x 14 411-00300009-003 221

30 30.50 1/4 x 7 34 15/16 12 5/8 x 11 411-00305002-003 133

30 30.50 1/4 x 10 34 15/16 12 5/8 x 14 411-00305003-003 154

30 30.50 3/8 x 7 34 15/16 12 5/8 x 11 411-00305007-003 157

30 30.50 3/8 x 10 34 15/16 12 5/8 x 14 411-00305008-003 189

30 30.50 1/2 x 10 34 15/16 12 5/8 x 14 411-00305009-003 224

30 31.74 1/4 x 7 36 3/16 14 5/8 x 11 411-00317402-003 139

30 31.74 1/4 x 10 36 3/16 14 5/8 x 14 411-00317403-003 163

30 31.74 3/8 x 7 36 3/16 14 5/8 x 11 411-00317407-003 164

30 31.74 3/8 x 10 36 3/16 14 5/8 x 14 411-00317408-003 198

30 31.74 1/2 x 10 36 3/16 14 5/8 x 14 411-00317409-003 235

30 32.00 1/4 x 7 36 7/16 14 5/8 x 11 411-00320002-003 140

30 32.00 1/4 x 10 36 7/16 14 5/8 x 14 411-00320003-003 164

30 32.00 3/8 x 7 36 7/16 14 5/8 x 11 411-00320007-003 166

30 32.00 3/8 x 10 36 7/16 14 5/8 x 14 411-00320008-003 201

30 32.00 1/2 x 10 36 7/16 14 5/8 x 14 411-00320009-003 237

30 34.00 1/4 x 7 38 7/16 14 5/8 x 11 411-00340002-003 148

30 34.00 1/4 x 10 38 7/16 14 5/8 x 14 411-00340003-003 173

30 34.00 3/8 x 7 38 7/16 14 5/8 x 11 411-00340007-003 175

30 34.00 3/8 x 10 38 7/16 14 5/8 x 14 411-00340008-003 211

30 34.00 1/2 x 10 38 7/16 14 5/8 x 14 411-00340009-003 250

36 36.00 1/4 x 7 40 7/16 16 5/8 x 11 411-00360002-003 158

36 36.00 1/4 x 10 40 7/16 16 5/8 x 14 411-00360003-003 184

36 36.00 3/8 x 7 40 7/16 16 5/8 x 11 411-00360007-003 183

36 36.00 3/8 x 10 40 7/16 16 5/8 x 14 411-00360008-003 225

36 36.00 1/2 x 10 40 7/16 16 5/8 x 14 411-00360009-003 266

36 36.50 1/4 x 7 40 15/16 16 5/8 x 11 411-00365002-003 159

36 36.50 1/4 x 10 40 15/16 16 5/8 x 14 411-00365003-003 186

36 36.50 3/8 x 7 40 15/16 16 5/8 x 11 411-00365007-003 188

36 36.50 3/8 x 10 40 15/16 16 5/8 x 14 411-00365008-003 227

36 36.50 1/2 x 10 40 15/16 16 5/8 x 14 411-00365009-003 269

36 36.63 1/4 x 7 41 1/16 16 5/8 x 11 411-00366302-003 160

36 36.63 1/4 x 10 41 1/16 16 5/8 x 14 411-00366303-003 187

36 36.63 3/8 x 7 41 1/16 16 5/8 x 11 411-00366307-003 189

36 36.63 3/8 x 10 41 1/16 16 5/8 x 14 411-00366308-003 228

36 36.63 1/2 x 10 41 1/16 16 5/8 x 14 411-00366309-003 270

36 37.96 1/4 x 7 42 13/32 16 5/8 x 11 411-00379602-003 162

36 37.96 1/4 x 10 42 13/32 16 5/8 x 14 411-00379603-003 189

36 37.96 3/8 x 7 42 13/32 16 5/8 x 11 411-00379607-003 191

36 37.96 3/8 x 10 42 13/32 16 5/8 x 14 411-00379608-003 230

36 37.96 1/2 x 10 42 13/32 16 5/8 x 14 411-00379609-003 272

The basic design of bolted compression couplings does not provide for anchoring the pipes against pullout. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Coupling working pressure depends on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross section, follower type and number of bolts. Consult Smith-Blair regarding your specific coupling p essure requirements.

For Large Diameter Steel and Cast Iron Sizes Standard Lengths

Nom. Pipe Size In. Pipe O.D. Inches Sleeve
THK. X LGTH
(A) (B)
Inches Follower
Flange O.D.
Inches Bolts Catalog Number Approx. Ship
Wt Lbs

NO. DIA. X LGTH (L)

36 38.30 1/4 x 7 42 3/4 16 5/8 x 11 411-00383002-003 166

36 38.30 1/4 x 10 42 3/4 16 5/8 x 14 411-00383003-003 194

36 38.30 3/8 x 7 42 3/4 16 5/8 x 11 411-00383007-003 196

36 38.30 3/8 x 10 42 3/4 16 5/8 x 14 411-00383008-003 237

36 38.30 1/2 x 10 42 3/4 16 5/8 x 14 411-00383009-003 281

42 42.00 1/4 x 7 46 1/2 18 5/8 x 11 411-00420002-003 123

42 42.00 1/4 x 10 46 1/2 18 5/8 x 14 411-00420003-003 214

42 42.00 3/8 x 7 46 1/2 18 5/8 x 11 411-00420007-003 216

42 42.00 3/8 x 10 46 1/2 18 5/8 x 14 411-00420008-003 262

42 42.00 1/2 x 10 46 1/2 18 5/8 x 14 411-00420009-003 310

42 42.50 1/4 x 7 47 18 5/8 x 11 411-00425002-003 186

42 42.50 1/4 x 10 47 18 5/8 x 14 411-00425003-003 215

42 42.50 3/8 x 7 47 18 5/8 x 11 411-00425007-003 220

42 42.50 3/8 x 10 47 18 5/8 x 14 411-00425008-003 263

42 42.50 1/2 x 10 47 18 5/8 x 14 411-00425009-003 312

42 42.75 1/4 x 7 47 1/4 18 5/8 x 11 411-00427502-003 187

42 42.75 1/4 x 10 47 1/4 18 5/8 x 14 411-00427503-003 216

42 42.75 3/8 x 7 47 1/4 18 5/8 x 11 411-00427507-003 221

42 42.75 3/8 x 10 47 1/4 18 5/8 x 14 411-00427508-003 264

42 42.75 1/2 x 10 47 1/4 18 5/8 x 14 411-00427509-003 315

42 44.20 1/4 x 7 48 11/16 18 5/8 x 11 411-00442002-003 190

42 44.20 1/4 x 10 48 11/16 18 5/8 x 14 411-00442003-003 225

42 44.20 3/8 x 7 48 11/16 18 5/8 x 11 411-00442007-003 225

42 44.20 3/8 x 10 48 11/16 18 5/8 x 14 411-00442008-003 275

42 44.20 1/2 x 10 48 11/16 18 5/8 x 14 411-00442009-003 325

42 44.50 1/4 x 7 49 18 5/8 x 11 411-00445002-003 193

42 44.50 1/4 x 10 49 18 5/8 x 14 411-00445003-003 228

42 44.50 3/8 x 7 49 18 5/8 x 11 411-00445007-003 228

42 44.50 3/8 x 10 49 18 5/8 x 14 411-00445008-003 278

42 44.50 1/2 x 10 49 18 5/8 x 14 411-00445009-003 329

48 48.00 1/4 x 7 52 1/2 20 5/8 x 11 411-00480002-003 208

48 48.00 1/4 x 10 52 1/2 20 5/8 x 14 411-00480003-003 245

48 48.00 3/8 x 7 52 1/2 20 5/8 x 11 411-00480007-003 246

48 48.00 3/8 x 10 52 1/2 20 5/8 x 14 411-00480008-003 299

48 48.00 1/2 x 10 52 1/2 20 5/8 x 14 411-00480009-003 354

48 48.75 1/4 x 7 53 1/4 20 5/8 x 11 411-00487502-003 212

48 48.75 1/4 x 10 53 1/4 20 5/8 x 14 411-00487503-003 249

48 48.75 3/8 x 7 53 1/4 20 5/8 x 11 411-00487507-003 246

48 48.75 3/8 x 10 53 1/4 20 5/8 x 14 411-00487508-003 303

48 48.75 1/2 x 10 53 1/4 20 5/8 x 14 411-00487509-003 358

48 48.75 1/4 x 7 53 1/4 20 5/8 x 11 411-00487502-003 212

48 48.75 1/4 x 10 53 1/4 20 5/8 x 14 411-00487503-003 249

48 48.75 3/8 x 7 53 1/4 20 5/8 x 11 411-00487507-003 246

48 48.75 3/8 x 10 53 1/4 20 5/8 x 14 411-00487508-003 303

48 48.75 1/2 x 10 53 1/4 20 5/8 x 14 411-00487509-003 358

48 50.80 1/4 x 7 55 5/16 20 5/8 x 11 411-00508002-003 220

48 50.80 1/4 x 10 55 5/16 20 5/8 x 14 411-00508003-003 260

48 50.80 3/8 x 7 55 5/16 20 5/8 x 11 411-00508007-003 261

48 50.80 3/8 x 10 55 5/16 20 5/8 x 14 411-00508008-003 317

48 50.80 1/2 x 10 55 5/16 20 5/8 x 14 411-00508009-003 375

54 57.10 1/4 x 7 61 19/32 24 5/8 x 11 411-00571002-003 238

54 57.10 1/4 x 10 61 19/32 24 5/8 x 14 411-00571003-003 286

54 57.10 3/8 x 7 61 19/32 24 5/8 x 11 411-00571007-003 292

54 57.10 3/8 x 10 61 19/32 24 5/8 x 14 411-00571008-003 349

54 57.10 1/2 x 10 61 19/32 24 5/8 x 14 411-00571009-003 414

The basic design of bolted compression couplings does not provide for anchoring the pipes against pullout. Suitable anchorage must be provided when excessive pipemovement could cause the pipe to move out of the coupling. NOTE: Coupling working pressure depends on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross section, follower type and number of bolts. Consult Smith-Blair regarding your specific coupling pressure requirements.

Long Lengths 1⁄2" through 24" Steel Pipe

Nom. Pipe Size In. Pipe O.D. Inches CATALOG NO.
BUNA-N GASKET SLEEVE Sleeve Thk. X Lgth. In. Flange O.D.
Inches Bolts Approx.
Ship Wt.
Lbs.

(A) (B) NO. Dia. In. Lgth In. (L)

1/2 0.084 411-00008410-003 0.120 12 3 5/8 2 1/2 14 4

3/4 1.05 411-00010510-003 0.120 12 3 7/8 2 1/2 14 4 1/2

1 1.32 411-00013210-003 0.120 12 4 1/2 2 1/2 14 5 1/2

1 1/4 1.66 411-00016610-003 0.120 12 4 9/16 2 1/2 14 7

1 1/2 1.90 411-00019010-003 0.120 12 4 13/16 2 1/2 14 7 1/2

2 2.00
2.38 411-00020010-003
411-00023810-003 0.120
0.120 12
12 4 13/16
5 11/16 2
3 1/2
5/8 14
15 7 1/2
13

2 1/2 2.88 411-00028810-003 0.203 12 6 1/2 3 5/8 15 17

+3 3.50 411-90035010-003 0.180 12 8.03 3 5/8 13 1/2 20 1/2

3 1/2-4 4.00 411-00040010-003 0.180 12 7 9/16 4 5/8 15 25

+4 4.50 411-90045010-003
411-90045011-003
411-90045012-003 0.188
0.188
0.188 12
16
24 9.05
9.05
9.05 4
4
4 5/8
5/8
5/8 13 1/2
17
25 22
27 1/2
38 1/2

4 1/2-5 5.00 411-00050010-003 0.250 12 8 5/8 4 5/8 15 30

5 5.56 411-00055611-003
411-00055612-003 0.250
0.250 16
24 9 3/16
9 3/16 4
4 5/8
5/8 19 1/2
27 1/2 41
52

+6 6.63 411-90066311-003
411-90066312-003 0.250
0.250 16
24 11 1/2
11 1/2 6
6 5/8
5/8 17
25 46 1/2
65

+8 8.63 411-90086311-000
411-90086312-003 0.250
0.250 16
24 13 1/2
13 1/2 6
6 5/8
5/8 17
25 57
79

10 10.00 411-00100012-003
411-00100012-003 0.250
0.250 16
24 14 5/16
14 5/16 8
8 5/8
5/8 19 1/2
27 1/2 67
97

+10 10.75 411-90107511-003
411-90107512-003 0.250
0.250 16
24 15.61
15.61 8
8 5/8
5/8 17
25 71
99

12 12.00 411-00120011-003
411-00120012-003 0.250
0.250 16
24 16 1/16
16 1/16 8
8 5/8
5/8 19 1/2
27 1/2 77
108

+12 12.75 411-90127511-003
411-90127512-003
411-90127516-003 0.250
0.250
0.375 16
24
24 17.61
17.61
17.61 8
8
8 5/8
5/8
5/8 17
25
25 81
113
148

14 14.00 411-00140015-003
411-00140016-003 0.375
0.375 16
24 18 7/16
18 7/16 6
6 5/8
5/8 19 1/2
27 1/2 126
171

16 16.00 411-00160015-003
411-00160016-003 0.375
0.375 16
24 20 7/16
20 7/16 8
8 5/8
5/8 19 1/2
27 1/2 146
197

18 18.00 411-00180015-003
411-00180016-003 0.375
0.375 16
24 22 7/16
22 7/16 8
8 5/8
5/8 19 1/2
27 1/2 160
219

20 20.00 411-00200015-003
411-00200016-003 0.375
0.375 16
24 24 7/16
24 7/16 10
10 5/8
5/8 19 1/2
27 1/2 180
245

22 22.00 411-00220015-003
411-00220016-003 0.375
0.375 16
24 26 7/16
26 7/16 10
10 5/8
5/8 19 1/2
27 1/2 196
265

24 24.00 411-00240015-003
411-00240016-003 0.375
0.375 16
24 28 7/16
28 7/16 10
10 5/8
5/8 19 1/2
27 1/2 210
286

+ Indicates couplings furnished with Steel “Z" section, High Strength Follower Flanges.
The basic design of bolted compression couplings does not provide for anchoring the pipes against pull-out. Suitable anchorage must be provided when excessive pipe movement could cause the pipe to move out of the coupling. NOTE: Coupling working pressures depend on many variables such as pipe type, pipe diameter, sleeve thickness, sleeve material, gasket cross section, follower type and number of bolts. Consult Smith-Blair regarding your specific coupling pressure requirements.

Additional information

Weight	N/A
Dimensions	N/A
411 Coupling OD Inches	1.66", 1.90", 2.00", 2.38", 2.50", 2.63", 2.75", 2.88", 3.00", 3.50", 3.80", 3.96", 4.00", 4.13", 4.80", 5.00", 5.10", 5.56", 6.90", 7.10", 9.05", 10.00", 11.10", 11.40", 12.00", 13.20", 13.50", 13.92", 14.00", 15.30", 15.65, 16.00", 17.40", 17.80", 18.00", 19.50", 19.92", 20.00", 21.60", 22.00", 22.06", 24.00", 25.80", 26.32", 30.00", 32.00", 36.00", 38.30"