026
88
TECHNICAL
INFORMATION
Tensile pull and burst tests were performed by an independent laboratory under controlled conditions to provide comparative
performance data for the various barb styles and sizes offered by Value Plastics. Graph numbers 1 through 8 present the data from
each of the tests for each barb size and each barb style connected to PVC tube.
The values shown are the means of a statistically significant sample quantity of each configuration. Value Plastics barbed fittings
specifically designed for use with the tubing size indicated were used in these tests. No oversized barbs, solvents, adhesives, or
secondary fasteners of any kind were used.
Tensile Pull Test:
Tensile properties were measured to determine the force required to remove the barbed fitting from the tubing.
Tensile specimens were mounted axially in a holding fixture and tested at a rate of 20 inches per minute. Failure mode was tubing
separating from the barb.
Hydrostatic Burst Test:
Hydrostatic burst testing was performed in general accordance with ASTM D1599. Failure mode was either
tubing separating from the barb, the tubing bursting, or a combination of the two.
Performance of Barb to Tube Connections -
Tensile Pull Test (lbs) - Hydrostatic Burst Test (psi)
TECHNICAL:
Barb Performance
The data presented here is for reference only. It was compiled to provide our customers with a means of comparing the characteristics of components at the time of publication. The particular conditions of your
use and application of our products are beyond our control. Thus, it is imperative that you test our products in your specific application to determine their suitability. All information is provided without implied
or express warranty or guarantee by Value Plastics
®
or other manufacturers. None of the information provided constitutes a recommendation or endorsement of any kind by Value Plastics
®
.
Graph 1: 1/16" Barb Performance
1
10
100
1000
8
363
500
7
200
4
186
400
380
Classic
Units
BarbStyle
311
11
Graph 2: 3/32" Barb Performance
9
12
6
13
215
259
124
250
1
10
100
1000
500
200
400
Classic
Units
BarbStyle
Graph 3: 1/8" Barb Performance
1
10
100
1000
1 1
154
500
19
217
200
10
1 1 1
400
22
21 1
Classic
Units
BarbStyle
Graph 4: 5/32" Barb Performance
33
262
21
204
500
32
257
200
Classic
1
10
100
1000
Units
BarbStyle
Graph 5: 3/16" Barb Performance
38
224
1
10
100
1000
500
48
223
200
22
134
400
52
201
Classic
Units
BarbStyle
Graph 6: 1/4" Barb Performance
43
153
500
1
10
100
1000
Units
BarbStyle
600 Series Leak Tests
10
10
10
10
10
3/8”
1/2”
5/8”
3/4”
1”
C-Flex ®
20
28
32
40
55
PVC
7
9
9
11
14
Silicone
60
50
40
30
20
10
0
600 Series Tensile Pull Tests
121
63
106
89
49
3/8”
1/2”
5/8”
3/4”
1”
C-Flex ®
295
105
179
81
80
PVC
64
49
64
43
27
Silicone
300
200
100
0
