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Mercer Rubber Company

Flexmore Expansion Joints/Features
Style 451Style 452Style 453Style 454Style 455Style 456Control Rods8 CAUTION 7
 

Pipe
Size
(in)
Face
to
Face
(in)

Axial
Compres-
sion
(in)

Axial
Extension
(in)

Lateral
Deflection
(in)

Degrees
Angular
(degrees)

Degrees
Torsional
(degrees)
1-1/2
6
1-3/4
7/8
1
54
9
2
6
1-3/4
7/8
1
45
9
2-1/2
6
1-3/4
7/8
1
38
8
3
6
1-3/4
7/8
1
33
7
4
6
1-3/4
7/8
1
25
6
5
6
1-3/4
7/8
1
21
6
6
6
1-3/4
7/8
1
17
5
8
6
1-3/4
7/8
1
13
4
10
8
1-3/4
7/8
1
11
4
12
8
1-3/4
7/8
1
9
3
14
8
2-1/8
1
1-1/4
10
3
16
8
2-1/8
1
1-1/4
8
3
18
8
2-1/8
1
1-1/4
7
3
20
8
2-1/8
1
1-1/4
7
3
24
10
2-5/8
1-1/4
1-1/2
7
3
30
10
2-5/8
1-1/4
1-1/2
5
3
36
10
2-5/8
1-1/4
1-1/2
4
2
Temperature/Pressure Ratings
Maximum Pressure-   
  All Materials     250æ psig @>150° F
Maximum Temperature-
  Natural Rubber
225psig@180° F
  Chlorobutyl
180psig@225° F
  Neoprene
180psig@225° F
  Hypalon
180psig@225° F
  Nitrile (Buna)
200psig@210° F
  EPDM
180psig@225° F
  Viton®
180psig@225° F
VACUUM
RATINGS
1-1/2"-12" 29"Hg
14"-36"    15"Hg

5Top
 

Pipe
Size
(in)
Face
to
Face
(in)

Axial
Compres-
sion
(in)

Axial
Extension
(in)

Lateral
Deflection
(in)

Degrees
Angular
(degrees)

Degrees
Torsional
(degrees)
1-1/2
10
3-1/2
1-3/4
2
73
14
2
10
3-1/2
1-3/4
2
66
14
2-1/2
10
3-1/2
1-3/4
2
59
12
3
10
3-1/2
1-3/4
2
54
11
4
10
3-1/2
1-3/4
2
45
9
5
10
3-1/2
1-3/4
2
38
9
6
10
3-1/2
1-3/4
2
33
8
8
10
3-1/2
1-3/4
2
25
6
10
12
3-1/2
1-3/4
2
21
6
12
12
3-1/2
1-3/4
2
17
5
14
12
4-3/8
2-1/8
2-1/2
19
5
16
12
4-3/8
2-1/8
2-1/2
16
5
18
12
4-3/8
2-1/8
2-1/2
15
5
20
12
4-3/8
2-1/8
2-1/2
13
5
24
15
5-1/4
2-1/2
3
13
4
30
15
5-1/4
2-1/2
3
11
4
36
15
5-1/4
2-1/2
3
9
3
Temperature/Pressure Ratings
Maximum Pressure-   
  All Materials     250æ psig @>150° F
Maximum Temperature-
  Natural Rubber
225psig@180° F
  Chlorobutyl
180psig@225° F
  Neoprene
180psig@225° F
  Hypalon
180psig@225° F
  Nitrile (Buna)
200psig@210° F
  EPDM
180psig@225° F
  Viton®
180psig@225° F
VACUUM
RATINGS
1-1/2"-12"  15"Hg
14"-36"      10"Hg

5 Top
 

Pipe
Size
(in)
Face
to
Face
(in)

Axial
Compres-
sion
(in)

Axial
Extension
(in)

Lateral
Deflection
(in)

Degrees
Angular
(degrees)

Degrees
Torsional
(degrees)
1-1/2
14
5-1/4
2-5/8
3
81
21
2
14
5-1/4
2-5/8
3
76
20
2-1/2
14
5-1/4
2-5/8
3
70
18
3
14
5-1/4
2-5/8
3
66
16
4
14
5-1/4
2-5/8
3
57
13
5
14
5-1/4
2-5/8
3
50
13
6
14
5-1/4
2-5/8
3
45
12
8
14
5-1/4
2-5/8
3
36
10
10
16
5-1/4
2-5/8
3
30
9
12
16
5-1/4
2-5/8
3
25
8
14
16
6-1/2
3-1/4
3-5/8
27
8
16
16
6-1/2
3-1/4
3-5/8
24
7
18
16
6-1/2
3-1/4
3-5/8
22
7
20
16
6-1/2
3-1/4
3-5/8
20
7
24
20
7-7/8
3-7/8
4 -1/2
20
6
30
20
7-7/8
3-7/8
4 -1/2
16
6
36
20
7-7/8
3-7/8
4 -1/2
13
5
Temperature/Pressure Ratings
Maximum Pressure-   
  All Materials        250æ psig@>150° F
Maximum Temperature-
  Natural Rubber
225psig@180° F
  Chlorobutyl
180psig@225° F
  Neoprene
180psig@225° F
  Hypalon
180psig@225° F
  Nitrile (Buna)
200psig@210° F
 EPDM
180psig@225° F
  Viton®
180psig@225° F
VACUUM
RATINGS
1-1/2"-12"  15"Hg
14"-36"      10"Hg

5Top
 

Pipe
Size
(in)
Face
to
Face
(in)

Axial
Compres-
sion
(in)

Axial
Extension
(in)

Lateral
Deflection
(in)

Degrees
Angular
(degrees)

Degrees
Torsional
(degrees)
1-1/2
18
7
3-1/2
4
86
26
2
18
7
3-1/2
4
81
26
2-1/2
18
7
3-1/2
4
77
22
3
18
7
3-1/2
4
73
20
4
18
7
3-1/2
4
66
16
5
18
7
3-1/2
4
59
17
6
18
7
3-1/2
4
54
15
8
18
7
3-1/2
4
45
12
10
20
7
3-1/2
4
38
11
12
20
7
3-1/2
4
33
9
14
28
8-3/4
4-1/4
5
35
10
16
20
8-3/4
4-1/4
5
31
9
18
20
8-3/4
4-1/4
5
28
9
20
20
8-3/4
4-1/4
5
25
9
24
26
10-1/2
5
6
25
8
30
26
10-1/2
5
6
21
7
36
26
10-1/2
5
6
17
6
Temperature/Pressure Ratings
Maximum Pressure-   
  All Materials            250æ psig@>150° F
Maximum Temperature-
  Natural Rubber
225psig@180° F
  Chlorobutyl
180psig@225° F
  Neoprene
180psig@225° F
  Hypalon
180psig@225° F
  Nitrile (Buna)
200psig@210° F
 EPDM
180psig@225° F
  Viton®
180psig@225° F
VACUUM
RATINGS
1-1/2"-12"  15"Hg
14"-36"      10"Hg

5 Top
 

Pipe
Size
(in)
Face
to
Face
(in)

Axial
Compres-
sion
(in)

Axial
Extension
(in)

Lateral
Deflection
(in)

Degrees
Angular
(degrees)

Degrees
Torsional
(degrees)
1-1/2
21
8-3/4
4 -3/8
5
88
33
2
21
8-3/4
4 -3/8
5
85
32
2-1/2
21
8-3/4
4 -3/8
5
81
28
3
21
8-3/4
4 -3/8
5
78
25
4
21
8-3/4
4 -3/8
5
71
20
5
21
8-3/4
4 -3/8
5
66
21
6
21
8-3/4
4 -3/8
5
60
19
8
21
8-3/4
4 -3/8
5
52
15
10
24
8-3/4
4 -3/8
5
45
14
12
24
10-7/8