POLYURETHANE
VERTEBRAE BEND
RESTRICTORS
ABCOSubseahasmanufacturedandsoldmorethan1,200Vertebrae
BendRestrictor(VBR)assembliesoverthepast30years.VBRsareavailable
in polyurethane, steel or a hybrid combination of both materials, and can
accommodatelineswithoutside
rangingfrom1/2”to16”.
”
Advantages:
•
Custom designed
•
In-housedesignandverificationtesting
•
Neutrally buoyant
•
Resistant to biofouling
7108 West Little York Road
Houston, Texas 77040
713.871.8020
[email protected]
ABCOSubsea.com
POLYURETHANE VERTEBRAE
BEND RESTRICTORS
Technical Data
*All data below applies to polyurethane vertebrae bend restrictors.
ABCO Subsea also manufactures steel VBR assemblies.
Material Specs:
Material Designation
70 D or 85 D, Ether-based Polyurethane
Manufacturing Process
Atmospheric Cast
Specific Gravity
1.16 –1.20
Standard Design (Fixed Pitch Length)
1.5”
3“ LW
3”
4“
5”
2288.xx
2473.xx
2280.xx
2012.xx
2208.xx
Weight per segment in air (lbs):
1.04
1.45
5.80
5.06
6.83
Weight per segment in water (lbs):
0.12
0.17
0.68
0.59
0.80
Nom. Max Segment ID:
1.75”
3.125”
3.125”
4.25”
5.50”
Max Umbilical OD:
1.63”
3.0“
3.0”
4.125”
5.375“
Assembly PN’s:
Segment OD:
5.0“
6.59”
8.55“
9.36”
10.61“
Segment Pitch Length:
3.68“
3.81”
7.33“
6.03”
6.10“
4”-300# ANSI
4”-300# ANSI
4”-300# ANSI
6“-300# ANSI
6”-300# ANSI
20”
22”
40”
40“
54”
Flange Interface:
Min Locking Bend Radius:
Static Moment (ft.lbf):
380
1,290
1,920
2,250
4,720
Dynamic Moment (ft.lbf):
565
1,880
2,790
3,270
6,880
Ultimate Moment (ft.lbf):
880
2,910
4,330
5,080
10,670
Long Radius Design (Variable Pitch Length)
Assembly PN’s:
M4
M5
M7
M9
2510.xx
2782.xx
2924.xx
2874.xx
Segment OD:
Flange Interface:
Nom. segment ID:
11.75”
13.25”
15.70”
18.37”
8”– 300# ANSI
8”– 300# ANSI
8”– 300# ANSI
10”– 300# ANSI
2.75”
4.25”
3.63”
7.13“
min
max
4.3“
min
max
5.5”
min
max
7.13”
min
max
9.5”
Typical Static Moment (ft.lbf):
10,930
18,500
25,130
51,390
Typical Typical Dynamic Moment (ft.lbf):
16,930
27,750
37,690
77,090
Ultimate Moment (ft.lbf):
Locking Bend Radius:
Segment Length:
Weight per segment in air (lbs):
Weight per segment in water (lbs):
min
22,400
max
min
37,930
max
51,510
min
max
105,400
min
max
52“
13.5“
13.7
398”
39.6”
39.4
63”
13.0“
730“
36.7”
78”
16.0“
777“
40.3”
75”
17.2“
870”
44.2”
15.8
38.9
28.9
73.7
37.5
90.4
2.0
5.8
2.3
5.7
4.2
10.8
5.5
13.2

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