Style 38 Couplings

Proven by years of service on all kinds of pipe, Dresser Style 38 couplings provide
flexible, leakproof connections that last the life of the pipe. No costly threading, beveling,
exact pipe fitting or alignment is required. The resilient Dresser gaskets absorb vibration
and pipe movement and permit curves to be laid with straight pipe lengths. Installation is
safe and sure. Theres no hazard to workmen or delays due to weather. Dresser Style 38
couplings are available from 1/2 ID to over 400 OD.
NOTE: Commonly used sizes are listed in the tables, but couplings can be
furnished for practically any size or special condition.

FOLLOWER
BOLT

D
NUT

Materials of Construction

GASKET

Pipe
O.D.

Gasket Section

Followers:

AISI C1012 or ASME SA36

(Ductile Iron or Malleable Iron for 1/2 thru 1-1/2)
Middle Ring: ASTM A513, ASTM A635 or ASME SA675 GR60
Bolts:
AWWA C 111/ANSI A21.11

B
A

MIDDLE
RING

Style 38 Couplings

Single-piece follower construction for 2-12 couplings

Sizes and Specifications for Steel Pipe Sizes

Pipe
Nominal
Size
(In)

Outside
Pipe
Diameter
(OD)

Middle Ring
Thickness
& Length
(A&B)1

Bolts2
No./Diam.
x Length
(D&E)

Gaskets3
Sec. Dim.
Thks/Lgth.
(F&G)

1/2
3/4
1
1-1/4
1-1/2

.840
1.050
1.315
1.660
1.900

.156 x 3-1/2
.156 x 5
.148 x 5
.154 x 5
.165 x 5

21/2 x 6
21/2 x 7-1/4
21/2 x 7-1/4
21/2 x 7-1/4
21/2 x 7-1/4

2
2
2
2
2-1/2

*2.375
2.375
2.375
2.375
2.875

.156 x 4
.156 x 5
.156 x 5
.156 x 7
.180 x 5

3
3
3
3

*3.000
*3.500
3.500
3.500

3-1/2
3-1/2
4
4
4

Diam.
(H)

Length4
(L)

Working
Pressure5
Lbs. per
Sq.In.

9/32 x 9/16
9/32 x 9/16
9/32 x 9/16
9/32 x 9/16
11/32 x 5/8

3-1/2
3-13/16
4-1/16
4-7/16
4-3/4

4-3/8
5-7/8
5-7/8
5-7/8
5-7/8

1500
1500
1500
1500
1500

2250
2250
2250
2250
2250

2
3
4
4
5

21/2 x 7-1/4
25/8 x 8-1/4
35/8 x 8-1/4
35/8 x 10-1/4
35/8 x 8-1/4

3/8 x 3/4
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32

5-3/8
6
6-1/4
6-1/4
7

5-1/4
6-5/8
7
9
7

1500
1500
1500
1500

2250
2250
2250
2250

4-1/2
7
10
13
13

.180 x 4
.156 x 4
.156 x 5
.156 x 7

21/2 x 6
31/2 x 6
45/8 x 6
45/8 x 8-1/4

3/8 x 7/8
3/8 x 7/8
1/2 x 29/32
1/2 x 29/32

6
6-1/2
8
8

5-1/2
5-1/4
7
9

1100
1100

1650
1650

6-1/2
7
13.5
17.5

*4.000
4.000
*4.500
4.500
4.500

.134 x 4
.188 x 5
.188 x 4
.188 x 5
.188 x 7

31/2 x 6
45/8 x 8-1/4
31/2 x 6
45/8 x 6
45/8 x 8-1/4

3/8 x 7/8
1/2 x 29/32
3/8 x 7/8
1/2 x 29/32
1/2 x 29/32

7
8-5/8
7-1/2
9
9

5-1/4
7
5-1/4
7
9

1500
1000
1000

2250
1500
1500

7-1/2
17
8
16.5
23.5

5
5
5
5
5

*5.500
5.500
*5.563
5.563
5.563

3/4 x 4
1/4 x 5
3/16 x 4
1/4 x 5
1/4 x 7

41/2 x 6
45/8 x 8-1/4
41/2 x 6
45/8 x 6
45/8 x 8-1/4

3/8 x 7/8
1/2 x 29/32
3/8 x 7/8
1/2 x 29/32
1/2 x 29/32

8-1/2
9-5/8
8-1/2
10-3/8
10-3/8

5-1/4
5-1/4
5-1/4
7
9

1205
1205
1205

1808
1808
1808

10
23.5
20
23.5
25

6
6
6
6
6

*6.000
6.000
*6.625
6.625
6.625

.188 x 4
1/4 x 5
3/16 x 4
1/4 x 5
1/4 x 7

41/2 x 6
65/8 x 6
41/2 x 6
65/8 x 6
65/8 x 8-1/4

3/8 x 7/8
1/2 x 1
3/8 x 7/8
1/2 x 1
1/2 x 1

10-5/8
10-5/8
9-5/8
11-1/4
11-1/4

5-1/4
70
5-1/4
7
9

1126
1029
1029

1689
1544
1544

11
26.5
22.5
25.5
31

Overall Dimensions

* Light Pattern Couplings - Standard pressure rating of 150 psi. See coupling body construction at top of Page 6.

Max. Test
Pressure
Lbs. per
Sq.In.

Approx.
Shipping
Ship.
(Lbs.)

Style 38 Couplings (contd)

Sizes and Specifications for Steel Pipe Sizes
Pipe
Nominal
Size
(In)

Outside
Pipe
Diameter
(OD)

Middle Ring
Thickness
& Length
(A&B)1

Bolts2
No./Diam.
x Length
(D&E)

Gaskets3
Sec. Dim.
Thks/Lgth.
(F&G)

8
8
8
8
8
10
10
10
10
12
12
12
12
14

*8.000
8.000
*8.625
8.625
8.625
10.000
10.750
10.750
10.750
12.000
12.750
12.750
12.750
14.000
14.000
16.000
16.000
18.000
18.000
20.000
20.000
22.000
22.000
24.000
24.000
30.000
30.000
30.500
30.750
36.000
36.750

3/4 x 4
1/4 x 5
3/16 x 4
1/4 x 5
1/4 x 7
1/4 x 5
1/4 x 5
1/4 x 7
3/8 x 7
1/4 x 7
1/4 x 5
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
1/4 x 7
3/8 x 7
3/8 x 7
3/8 x 7

51/2 x 6
65/8 x 8-1/4
61/2 x 6
65/8 x 6
65/8 x 18-1/4
85/8 x 8-3/4
85/8 x 8-1/4
85/8 x 10-3/4
85/8 x 10-3/4
85/8 x 10-3/4
85/8 x 8-1/4
85/8 x 10-3/4
85/8 x 10-3/4
85/8 x 10-3/4
85/8 x 10-3/4
105/8 x 10-3/4
105/8 x 10-3/4
105/8 x 10-3/4
105/8 x 10-3/4
125/8 x 10-3/4
125/8 x 10-3/4
145/8 x 10-3/4
145/8 x 10-3/4
145/8 x 10-3/4
145/8 x 10-3/4
165/8 x 10-3/4
165/8 x 10-3/4
165/8 x 10-3/4
165/8 x 10-3/4
185/8 x 10-3/4
185/8 x 10-3/4

3/8 x 7/8
1/2 x 1
3/8 x 7/8
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16
1/2 x 1-1/16
1/2 x 1-3/16

11
11-7/8
11-5/8
13-1/4
13-1/4
13-7/8
14-5/8
14-5/8
14-5/8
16
16-3/4
16-3/4
16-3/4
18
18
20
20
22
22
24-1/16
24-1/16
26
26
28
28
34
34
34-1/2
34-3/4
40
41-3/4

42

42.000

1/2 x 10

205/8 x 15

1/2 x 1-1/16

48

48.750

1/2 x 10

225/8 x 15

49

49.000

1/2 x 10

55

55.000

61

Working
Pressure
Lbs. per
Sq.In.5

Max. Test
Pressure
Lbs. per
Sq.In.

Approx.
Shipping
Weight
(Lbs.)

5-1/4
6-7/8
5-1/4
7
9
6-7/8
6-7/8
8-7/8
8-7/8
8-7/8
6-7/8
8-7/8
6-7/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/8
9-1/2

866
807
807
703
657
657
813
591
558
558
691
510
633
449
557
401
498
362
450
330
411
304
378
243
303
240
295
253
298

1299
1211
1211
1055
986
986
1200
887
837
837
1036
765
949
673
835
602
747
543
675
495
616
456
567
364
454
360
442
379
447

15
31
16
32
38
39
40
49
53
53
45
56
65
60
72
70
82
75
88
86
90
98
108
105
120
120
153
125
158
181
227

47

12-1/2

346

519

351

1/2 x 1-1/16

53

12-7/8

304

456

399

225/8 x 15

1/2 x 1-1/16

54

12-7/8

299

448.5

401

1/2 x 10

245/8 x 15

1/2 x 1-1/16

60

13

287

430.5

447

61.000

1/2 x 10

265/8 x 15

1/2 x 1-1/16

66

13

241

361.5

494

67

67.000

1/2 x 10

305/8 x 15

1/2 x 1-1/16

72

13

220

330

545

73

73.000

1/2 x 10

325/8 x 15

1/2 x 1-1/16

78

13

202

303

598

16
18
20
22
24
30

36

Overall Dimensions
Diam.
(H)

Length
(L)4

NOTE: Only couplings for most commonly used steel pipe sizes are shown. Couplings are supplied for ALL SIZES of steel pipe and are regularly available in
any special size. Details and prices will be furnished on request for any size of pipe or for any special conditions. Please consult factory.
1- Middle Rings - Thicker or longer than those listed can be furnished. Please specify if pipe stop is required.
2- Bolts - Furnished E-Coated steel as standard.
3- Gasket - Information appears on Page 16.
4- Dimension L - Overall length taken with bolts drawn up finger tight.
5- Working Pressure - Pressure ratings are determined on the basis of Barlows formula using a working stress equal to one half the minimum yield of the middle ring material.

* Light Pattern Couplings - Standard pressure rating of 150 psi. See coupling body construction at top of Page 6.

Style 38 Light Pattern Couplings For Light Wall Steel Pipe

6 Style 38 showing 4-bolt
construction supplied for that size.
Sizes of 5, 5-1/2, and 6 O.D.
(all 4-bolt), 7 and 8 O.D. (5-bolt)
are of similar construction.

2 Style 38 showing 2-bolt

construction; supplied also for
2 O.D. and 3 O.D. sizes

4 Style 38 showing 3-bolt

construction; supplied also for
3-1/2 O.D. and 4 O.D. sizes

Style 38 Couplings for Cast iron Pipe Sizes

Dresser Style 38 Couplings are also available for cast iron sizes 2 through 72.
These couplings have long been used for joining plain end cast-iron pipe, combining
the advantages of absolutely tight joints and easier, faster pipe joining. Style 38
couplings also permit the salvage and use of random lengths of cast-iron pipe from
which bell-ends or cracked sections have been removed.

FOLLOWER
BOLT

D
NUT

Materials of Construction

GASKET

Pipe
O.D.

Gasket Section

Followers:

AISI C1012 or ASME SA36

(Ductile Iron or Malleable Iron for 1/2 thru 1-1/2)
Middle Ring: ASTM A513, ASTM A635 or ASME SA675 GR60
Bolts:
AWWA C 111/ANSI A21.11

MIDDLE
RING

Style 38 Couplings for CI

Sizes and Specifications for Plain-End Cast-Iron Pipe
Nominal
Size
(CIP)

Outside
Diameter
Inches

Middle Ring
Thickness
& Length
(A&B)

Bolts
No./Diam.
& Length
(D&E)

Gaskets
Sec. Dim.
Thks/Lgth.
(F&G)

2
2
3
3
4
4
6
6
8
8
10
10
12
12
14
14
16
16
18
18
20
20

2.500
2.750
3.800
3.960
4.800
5.000
6.900
7.100
9.050
9.300
11.100
11.400
13.200
13.500
15.300
15.650
17.400
17.800
19.500
19.920
21.600
22.060

.187 x 5
.203 x 5
.203 x 5
.203 x 5
5/16 x 5
5/16 x 5
5/16 x 5
5/16 x 5
5/16 x 5
5/16 x 5
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7
3/8 x 7

35/8 x 8-1/4
35/8 x 8-1/4
45/8 x 8-1/4
45/8 x 8-1/4
45/8 x 8-1/4
45/8 x 8-1/4
65/8 x 8-1/4
65/8 x 8-1/4
65/8 x 8-1/4
65/8 x 8-1/4
85/8 x 10-3/4
85/8 x 10-3/4
85/8 x 10-3/4
85/8 x 10-3/4
105/8 x 10-3/4
105/8 x 10-3/4
105/8 x 10-3/4
105/8 x 10-3/4
125/8 x 10-3/4
125/8 x 10-3/4
125/8 x 10-3/4
145/8 x 10-3/4

3/8 x 3/4
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 29/32
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16

Diam.
(H)

Length
(L)

Max. Working
Pressure
Lbs. per
Sq. In.

6-1/2
7
7-3/4
7-3/4
9
9
11-3/4
11-3/4
13-1/4
13-1/4
15-9/16
15-9/16
17-13/16
17-13/16
19-1/8
20-5/8
21-1/4
22-13/16
23-3/8
24-15/16
25-1/2
27-1/16

7
7
7
7
7
7
7-1/8
7-1/8
7-1/8
7-1/8
9-3/8
9-3/8
9-3/8
9-3/8
12-7/8
12-7/8
9-5/8
9-5/8
9-5/8
9-5/8
9-5/8
9-3/4

150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150

Overall Dimensions

Approx.
Shipping
Weight
(Lbs.)
12
13
17
17
22
23
30
33
40
41
72
74
84
86
98
102
108
111
122
124
138
141

Style 38 Couplings for Plain-End Cast-Iron Pipe (Contd from Page 6)

Nominal
Size
(CIP)

Outside
Diameter
Inches

Middle Ring
Thickness
& Length
(A&B)

Bolts
No./Diam.
& Length
(D&E)

Gaskets
Sec. Dim.
Thks/Lgth.
(F&G)

24
24
30
30
36
42
48
60
72

25.800
26.320
31.740
31.740
37.960
44.200
50.500
62.800
75.340

3/8 x 7
3/8 x 7
3/8 x 7
1/2 x 10
1/2 x 10
1/2 x 10
1/2 x 10
1/2 x 10
1/2 x 10

155/8 x 10-3/4
155/8 x 10-3/4
165/8 x 10-3/4
165/8 x 10-3/4
185/8 x 15
205/8 x 15
225/8 x 15
285/8 x 15
325/8 x 15

1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16
1/2 x 1-1/16

Diam.
(H)

Length
(L)

Max. Working
Pressure
Lbs. per
Sq. In.

29-3/16
31-5/16
36-3/4
36-3/4
42-15/16
49-3/16
55-1/2
67-13/16
80-3/8

9-1/2
9-1/2
10
10
13
13
13
13
13

150
150
150
150
150
150
150
150
150

Overall Dimensions

Approx.
Shipping
Weight
(Lbs.)
160
163
200
222
332
394
440
542
640

STAB-38 Couplings
For steel pipe sizes
FOLLOWER
BOLT

The Dresser STAB-38 Coupling is a true pakaged pipe joint ready to take
out fo the carton and slide onto the pipe. Available in sizes from 2 through 12,
these couplings are factory-assembled with no loose parts. It only takes a matter
of minutes to make absloutely permanent, tight joints and easier, faster pipe
joining. STAB-38 couplings are supplied with plain or armored gaskets and come
in clearly marked cartons to simplyfy warehousing.

NUT

F
G

PLAIN OR
ARMORED GASKET Pipe
O.D.

Gasket Section

MIDDLE
RING

STAB-38 Couplings
Sizes and Specifications for Steel Pipe

Nominal
Size
(CIP)

Outside
Diameter
Inches

Middle Ring
Thickness
& Length
(A&B)

Bolts
No./Diam.
& Length
(D&E)

Gaskets
Sec. Dim.
Thks/Lgth.
(F&G)

2
2

2.375
2.375

.154 x 5
.154 x 7

35/8 x 8-1/4
35/8 x 10-1/4

3
3

3.500
3.500

.156 x 5
.156 x 7

4
4

4.500
4.500

6
6

Overall Dimensions

Approx.
Shipping
Weight
(Lbs.)

Diam.
(H)

Length
(L)

Quantity
per
Package

3/8 x 3/4
3/8 x 3/4

6-1/4
6-1/4

7
9

6
6

62#
72

45/8 x 8-1/4
45/8 x 10-1/4

3/8 x 3/4
3/8 x 3/4

6-1/2
6-1/2

7
9

4
4

72
72

.188 x 5
.188 x 7

45/8 x 8-1/4
45/8 x 10-1/4

3/8 x 3/4
3/8 x 3/4

8-3/4
8-3/4

7
9

4
4

78
84

6.625
6.625

1/4 x 5
1/4 x 7

65/8 x 8-1/4
65/8 x 10-1/4

3/8 x 3/4
3/8 x 3/4

11-1/4
11-1/4

6-7/8
8-7/8

2
2

52
60

8
8

8.625
8.625

1/4 x 5
1/4 x 7

65/8 x 8-1/4
65/8 x 10-1/4

3/8 x 3/4
3/8 x 3/4

13-1/4
13-1/4

6-7/8
8-7/8

1
1

32
37

10
10

10.750
10.750

1/4 x 5
1/4 x 7

85/8 x 8-1/4
85/8 x 10-1/4

3/8 x 3/4
3/8 x 3/4

14-5/8
14-5/8

6-7/8
8-7/8

1
1

42
48

12
12

12.750
12.750

1/4 x 5
1/4 x 7

85/8 x 8-1/4
85/8 x 10-1/4

3/8 x 3/4
3/8 x 3/4

16-5/8
16-5/8

6-7/8
8-7/8

1
1

42
48