™
flanged rubber pipe connectors
Force Required for Lateral Displacement
Based on: 2.5" I.D. x 18" Length Product
Total Lateral Movement
.5"
1"
1.5"
2"
Load Required: Force in Pounds
20
40
60
Pressure-Elongation Curve
Based on: 2.5" I.D. x 18" Length Product
Pressure in PSIG
100
200
300
400
Percent of Elongation
1
2
3
Reduce System Stress And Strain.
Rigid attachment of piping to critical or mechanical equipment can produce excessive
loading. Thermal or mechanically created strain-stress-shock are cushioned and absorbed with the installation of a flexible
PROCO Series 300 Rubber Pipe.
Full Flow With Less Turbulence Or Material Entrapment.
The smooth bore of the PROCO Series 300 Rubber Pipe Connector
allows full flow without turbulence. Metallic connectors depend upon bellows or convolutions to absorb motion. These bellows/
convolutions could create flow turbulence and also create an area for material entrapment or bacteria growth.
Leak Free Without Gaskets Or Packing.
The full-face rubber flange of the PROCO Series 300 Rubber Pipe Connector is self-
gasketing. Additionally, the Style 310-R features a molded in place “O-Ring” on each flange-face for faster sealing with less
torque at installation and less long-term maintenance. Unlike interlocked metallic connectors, the Series 300 features a one-
piece seamless tube that does not require packing. Our rubber connector is suitable for all air, gas, and fluids, including
“searching” thin fluids.
Control Rod Assembly Usage.
PROCO Style 491 Control Units are designed to protect the Series 300 Pipe Connector from
excessive elongation. Control rods must be used: (1) when the piping containing the rubber pipe connector is not anchored
and, (2) when the rubber pipe connector is attached to resiliently supported pipe or equipment.
Flange
O.D.
Bolt
Circle
# of Holes
Size of
Holes
Flange
O.D.
Bolt
Circle
# of Holes
Size of
Holes
“A”
Fla
nge
Thick
ness
“B”
Body
Thickness
Style
310-R
Style
310
Style
320
Style #481
150 Pound
Style #484
300 Pound
Nominal
Pipe
Size:
Pipe I.D.
Table 4: Standard Drilling • Connector Dimensions • Pressures • Weights
125/150# Flange Dimensions
1
Pipe • Rings • Rods
250/300# Flange Dimensions
2
Pipe • Rings • Rods
Pipe Dimensions
See Figure 1
Operating Pressures
3
Positive In P.S.I.G.
Retaining Ring
Weight Per Set
.75
3.88 2.75 4 .625 4.62 3.25 4 .750
.591
.472 300 150 300
1.5 2.0
1
4.25 3.12 4 .625 4.88 3.50 4 .750
.591
.551 300 150 300
1.9 2.9
1.25
4.62 3.50 4 .625 5.25 3.88 4 .750
.591
.551 300 150 300
2.4 3.0
1.50
5.00 3.88 4 .625 6.12 4.50 4 .875
.591
.551 300 150 300
2.6 4.4
2
6.00 4.75 4 .750 6.50 5.00 8 .750
.591
.551 250 150 250
3.6 4.3
2.50
7.00 5.50 4 .750 7.50 5.88 8 .875
.591
.591 200 150 250
5.3 5.5
3
7.50 6.00 4 .750 8.25 6.63 8 .875
.591
.591 175 150 250
5.6 6.0
3.5
8.50 7.00 8 .750 9.00 7.25 8 .875
.591
.669 175 150 250
6.5 7.0
4
9.00 7.50 8 .750 10.00 7.88 8 .875
.591
.669 175 150 250
7.3 10.0
5
10.00 8.50 8 .875 11.00 9.25 8 .875
.591
.669 175 150 250
7.9 11.6
6
11.00 9.50 8 .875 12.50 10.63 12 .875
.591
.709 150 150 250
9.1 14.5
8
13.50 11.75 8 .875 15.00 13.00 12 1.000
.591
.787 150 150 250 14.0 19.6
10
16.00 14.25 12 1.000 17.50 15.25 16 1.125
.787
.866 150 150 250 17.0 23.0
12
19.00 17.00 12 1.000 20.50 17.75 16 1.250
.787
.984 150 150 250 24.1 31.3
14
21.00 18.75 12 1.125 23.00 20.25 20 1.250
.787
.984 125
*
125 200 26.8 37.0
16
23.50 21.25 16 1.125 25.50 22.50 20 1.375
.787
.984 100
*
100 150 32.1 45.0
18
25.00 22.75 16 1.250 28.00 24.75 24 1.375
.875
1.000 100
*
100 150 30.6 58.0
20
27.50 25.00 20 1.250 30.50 27.00 24 1.375
1.000
1.000 100
*
100 150 35.9 67.0
NOTES:
*
1.For optimum noise and vibration absorption, use this or
longer length.
2. The degree of angular movement is based on the
maximum rated extension.
3. Larger I.D. or length sizes available. Contact PROCO.
NOTES: 1. Dimensions shown meet 125/150# standards of: ANSI B-16.1, B-16.24, B-16.5; AWWA C-207 Table 1 and 2, Class D; MSS SP-44 and NBS/PS 15-69.
2. Dimensions shown meet 250/300# standards of: ANSI B-16.1, B-16.24, B-16.5 and MSS SP-44 Class 300.
3. Vacuum rating is 26" hg. in all cases except where
*
appears. Pressure rating is based on 170
°
F. operating temperature.
12
*
.158
.158
1.97
21.8
°
2.4
18
.236
.236
2.96
31.0
°
3.2
12
*
.158
.158
1.77
17.7
°
3.3
18
.236
.236
2.66
25.6
°
4.2
12
*
.158
.158
1.58
14.0
°
4.0
18
.236
.236
2.36
20.6
°
5.0
24
.315
.315
3.15
26.6
°
6.0
12
*
.158
.158
1.39
11.3
°
4.3
18
.236
.236
2.09
16.7
°
5.4
24
.315
.315
2.78
21.8
°
6.5
12
*
.158
.158
1.18
9.1
°
5.6
18
.236
.236
1.77
13.5
°
6.8
24
.315
.315
2.36
17.7
°
8.0
30
.354
.354
2.96
19.8
°
9.2
12
*
.158
.158
.98
7.0
°
6.9
18
.236
.236
1.48
10.5
°
8.2
24
.315
.315
1.97
13.8
°
9.5
30
.354
.354
2.46
15.5
°
10.0
12
*
.158
.158
.79
5.7
°
8.6
18
.236
.236
1.18
8.5
°
10.6
24
.315
.315
1.58
11.3
°
11.7
30
.354
.354
1.97
12.7
°
14.6
36
.433
.433
2.36
15.4
°
16.6
12
.158
.158
.59
5.1
°
9.7
18
*
.236
.236
.89
7.6
°
12.2
24
.315
.315
1.18
10.1
°
14.7
30
.354
.354
1.48
11.3
°
17.2
36
.433
.433
1.77
13.7
°
19.7
12
.158
.158
.59
4.6
°
10.9
18
*
.236
.236
.89
6.8
°
14.5
24
.315
.315
1.18
9.1
°
17.4
30
.354
.354
1.48
10.2
°
19.7
36
.433
.433
1.77
12.4
°
21.9
48
.472
.472
1.98
14.8
°
27.2
12
.158
.158
.45
3.7
°
13.5
18
*
.236
.236
.67
5.5
°
16.6
24
.315
.315
.89
7.3
°
20.1
30
.354
.354
1.12
8.2
°
23.1
36
.433
.433
1.34
10.0
°
26.1
12
.158
.158
.45
3.1
°
18.9
18
.236
.236
.67
4.6
°
19.9
24
*
.315
.315
.89
6.1
°
24.1
30
.354
.354
1.12
6.8
°
27.2
36
.433
.433
1.34
8.3
°
31.5
48
.472
.472
1.55
9.9
°
39.0
12
.118
.118
.35
1.7
°
23.4
18
.158
.158
.53
2.3
°
29.4
24
*
.236
.236
.71
3.4
°
35.7
30
.276
.276
.89
4.0
°
40.2
36
.354
.354
1.06
5.1
°
47.4
48
.472
.472
1.42
6.8
°
59.4
12
.118
.118
.32
1.4
°
26.0
18
.158
.158
.47
1.8
°
37.0
24
*
.236
.236
.63
2.7
°
48.7
30
.276
.276
.79
3.2
°
59.0
36
.354
.354
.95
4.1
°
70.0
48
.472
.472
1.26
5.5
°
92.0
12
.118
.118
.24
1.1
°
36.0
18
.158
.158
.36
1.5
°
51.0
24
*
.236
.236
.47
2.3
°
66.5
30
.276
.276
.59
2.7
°
81.0
36
.354
.354
.71
3.4
°
96.0
48
.472
.472
.95
4.2
°
126.0
12
.118
.118
.24
1.0
°
58.0
18
.158
.158
.36
1.3
°
83.0
24
*
.236
.236
.47
2.0
°
108.0
30
.276
.276
.59
2.3
°
133.0
36
.354
.354
.71
2.9
°
157.0
48
.472
.472
.95
3.9
°
208.0
12
.118
.118
.24
0.7
°
83.0
18
.158
.158
.36
1.3
°
118.0
24
*
.236
.236
.47
1.7
°
153.0
36
.354
.354
.71
2.6
°
233.0
48
.472
.472
.95
3.4
°
294.0
12
.112
.112
.18
0.9
°
110.0
18
.118
.118
.24
1.2
°
157.5
24
*
.236
.236
.24
1.5
°
205.0
36
.354
.354
.36
2.3
°
300.0
48
.472
.472
.48
3.1
°
394.0
24
*
.236
.236
.24
1.4
°
270.0
36
.354
.354
.36
2.1
°
394.0
48
.472
.472
.48
2.7
°
519.0
Neutral
Length
In. of Axial
Compression
In. of Axial
Extension
±
In. of Lateral
Deflection
±
In. of Angular
Deflection
Approximate
Weight / Lbs.
Style 310-R
Nominal
Pipe
Size:
Pipe I.D.
Table 3: Sizes • Movements • Weights
Movement Capability
From Neutral
.75
1
1.25
1.5
2
2.5
3
3.5
4
5
6
8
10
12
14
16
18
20
TOLL-FREE PHONE: (800) 344-3246
FACSIMILE: (209) 943-0242
(209) 943-6088
e-mail: sales@procoproducts.com
web site: http://www.procoproducts.com
NATIONWIDE AND CANADA
INTERNATIONAL
PROCO PRODUCTS, INC.
DISTRIBUTED BY:
Figure 1: Product Detail