wire rope sling manufacture for the offshore industry in...
TRANSCRIPT
Wire rope sling manufacturefor the offshore industry in Angolafor the offshore industry in Angola
1 February 2012
Table of content
1. Presentation1. Presentation
2 Review of norms and standards2. Review of norms and standards
3 Ho to chose a lifting set ?3. How to chose a lifting set ?
4. Our range of services
5. FAQ
22Contact:[email protected]+244 923 678 609
Our Organization
ORTEC Group Key Figures
5600 employees worldwide5600 employees worldwide900 M$ turnoverPresent on over 300 client sites18 subsidiaries in 15 countries80 establishments in FranceMain activities:Main activities:
MaintenanceConstruction worksE i tEnvironmentEnergyEngineeringI d t i l l iIndustrial cleaning
2 branches in Angola since 1997
For more information go to www ortec fr
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For more information, go to www.ortec.fr
Contact:[email protected]+244 923 678 609
Our Organization
FRIEDLANDER Angola: our activities Piping Works (Oil & Gas and Industry): Fabrication and Installation
Supports and Structures: Fabrication and Installation
EPCC Contracts for Onshore and Offshore
M i t R ti j b Maintenance: Routine jobs
Well Jumpers, Subsea Structures: Fabrication at quay side
Sea fastening Procurement Shut Downs: Preparation and site work
For more details contact our General Manager: direction angola@friedlander-international com
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For more details, contact our General Manager: [email protected]:[email protected]+244 923 678 609
Our Organization
ORSLING history
1997:Creation of FRIEDLANDER Angola1997:Creation of FRIEDLANDER AngolaOnshore and offshore activities for Oil & Gas
Fabrication of DNV 2.7-1 certified equipmentsq pNeed for corresponding lifting sets
2007: Creation of ORSLING(as brand belonging to FRIEDLANDER Angola) in order to respond internally to the need
fEnd of 2010: Fabrication workshop moved with FRIEDLANDER new construction yard within SONILS base
5 people permanent team
55Contact:[email protected]+244 923 678 609
Basic definitions
1 l li 4 l li ith h kl
Components of a lifting set
1 leg sling 4 legs sling, with shackles
Top link (triple)Soft eye termination Hard eye termination (without thimble) (with thimble)
p ( p )
Marking plate
2 legs sling, with hooks
Top link (simple)Wire rope
Ferrule
Thimble
Shackle
66Contact:[email protected]+244 923 678 609
Basic definitions
Technical terms
WLL: (Working Load Limit) maximum weight that the accessory is allowed to lift (in metric tons or WLL: (Working Load Limit) maximum weight that the accessory is allowed to lift (in metric tons or in kg)
BL: (Breaking Load) minimum force needed to break a cable (in N or in kN)
R ti T t l f t i ith t th lifti t ( T + P l d) Rating: Total mass of a container without the lifting set (= Tare + Payload)
Tare: Mass of the container when empty
Payload: Maximum mass that can be transported by a container (P= R-T)
Fore runner / top leg: Single leg sling used to elongate a 4 legs sling (the assembly can be referred as 5 legs sling), often used for DNV 2.7-1 lifting set fabrication to allow the top link to arrive at the correct elevation
Angle: Unless otherwise notified, the angle used to define a sling is always the angle between one leg and the vertical (in degrees)
Swaging: Method of assembly by pressing a ferrule containing the cable between dyes of Swaging: Method of assembly, by pressing a ferrule containing the cable between dyes of specific dimensions
DAF: (Dynamic Amplification Factor) Enhancement factor of the WLL to take the movement of the load into account
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load into accountContact:[email protected]+244 923 678 609
Basic definitions
Applicable norms and standards
Di i i d f b i tiDimensioning and fabrication:
DNV 2.7-1 Standard for certification of offshore containersEN 12079 2 E N ( f DNV 2 7 1)EN 12079-2 European Norm (copy of DNV 2.7-1)DNV 2.7-3 Standard for certification of portable offshore unitsEN 13414-1 European Norm for wire rope sling manufactureEN 13414 1 European Norm for wire rope sling manufacture
Choice of accessories:
EN 13411-3 European Norm for swaging and choice of thimbleEN 1677 European Norm for component for slingsEN 13889 European Norm for shacklesEN 12385 European Norm for steel wire ropes
88Contact:[email protected]+244 923 678 609
Table of content
1. Presentation1. Presentation
2 Review of norms and standards2. Review of norms and standards
3 Ho to chose a lifting set ?3. How to chose a lifting set ?
4. Our range of services
5. FAQ
99Contact:[email protected]+244 923 678 609
DNV 2.7-1 / EN 12079-2 review Limitations:
Maximum rating is 25T The DNV 2.7-1 standard corresponds only to offshore containers p y
fabrication, but the part concerning the lifting sets is often used as reference for the fabrication of slings for other offshore equipments
Enhancement factor to be applied for the calculation of the WLL (see table 8-1 at right side)
Minimum WLL = 7 000 kg Certified process of fabrication Top link dimension: recommended > 270 x 140mm When unloaded, the top link must not be above 1300mm from the p
floor Maximum angle of a sling with vertical = 45° The shackles from a lifting set can not be separated from the g p
sling Hard eye assembly only Specific marking
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Specific marking
10Contact:[email protected]+244 923 678 609
EN 13414-1 review Limitations:
Wire rope sling fabrication, from 8 to 60mm Specific markingp g Swaging conform to EN 13411-3 WLL to be calculated for angles from 0° to 45° from vertical (and from 45° to 60° for some
specific assemblies)p ) The weakest part must be the cable, not the top link Shackles must have higher WLL than the leg they are connected to Calculation of the WLL for usual cases: Calculation of the WLL for usual cases:
For 1 leg sling: WLL = (BLmin x KT) / (g x ZP), with:
BLmin = Minimum Breaking Load of the cable (given by the supplier)
ZP = 5 (safety factor)
g = 9.80665 N/kg
KT = termination coefficient (0.9 for swage assembly)
For multi legs sling: WLL = (BLmin x KT x KL) / (g x ZP), with:
KL = coefficient for leg number and angle = Nlegs x cos(β), with β = 45°
KL = 1.4 for 2 legs slings, and KL = 2.1 for 3 and 4 legs slings (4 legs slings are calculated as 3 legs slings)
1111Contact:[email protected]+244 923 678 609
Table of content
1. Presentation1. Presentation
2 Review of norms and standards2. Review of norms and standards
3 Ho to chose a lifting set ?3. How to chose a lifting set ?
4. Our range of services
5. FAQ
1212Contact:[email protected]+244 923 678 609
How to chose a lifting set ? Number of legs: Number of legs:
Given by the design of the equipment to lift
Requested certification Offshore or onshore ?
One time lift for installation or movable equipment ?
Company specifications Company specifications
Calculation of the minimum WLL of the sling Weight of the equipment to lift
DAF to apply (generally given by Company specification) Example: in TOTAL specifications, DAF = 1.30 for offshore lifting (<150T), and DAF = 1.10 for onshore
Use of a spreader bar: Use of a spreader bar: Can lower the stress on the equipment during lifting
Can reduce the length of the sling
C ll b tt t l f th lifti ( i ll f l f b i t ) Can allow better control of the lifting (especially useful for subsea equipments)
May modify the stability of the equipment (to be checked in every particular case)
Must be subject to specific calculation note
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j p
13Contact:[email protected]+244 923 678 609
How to chose a lifting set ?
WLL calculation
Wi B ki L d Si l l WLL 2 l WLL 4 l WLL DNV 2 7 1 S d d h klWireropeDiametre (mm)
Breaking Load(kN) *
Single leg WLL (Tons)
2 legs WLL (Tons)
4 legs WLL (Tons)
DNV 2.7-1 max rating (Tons)
Standard shacklesize (Tons)**
8 44,7 0,82 1,16 1,74 N/A 113 118 2 17 3 06 4 59 N/A 3 2513 118 2,17 3,06 4,59 N/A 3,2516 179 3,28 4,64 6,97 N/A 4,7518 226 4,15 5,86 8,80 3,9 4,7522 338 6 20 8 77 13 16 8 6 522 338 6,20 8,77 13,16 8 6,526 472 8,66 12,25 18,37 13,5 9,532 715 13,12 18,55 27,83 25 13,536 904 16 59 23 46 35 19 (25) 17
WLL calculated for each diameter according to EN 13414-1***, using steel cable 6 x 36 WS + IWRS in grade 1960 with maximum angle of 45° and ferrule terminations
36 904 16,59 23,46 35,19 (25) 1740 1120 20,55 29,06 43,59 (25) 25
grade 1960, with maximum angle of 45°, and ferrule terminations * Figures from EN 12385-4, table 9 and Traction Levage catalog** Any bigger size of shackle can be used as long as it can enter the thimble
Never use smaller size unless a specific calculation note has been issued
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*** Amendment A1, 2005, allows to calculate the WLL of a sling using grade 1960 breaking load
Contact:[email protected]+244 923 678 609
Table of content
1. Presentation1. Presentation
2 Review of norms and standards2. Review of norms and standards
3 Ho to chose a lifting set ?3. How to chose a lifting set ?
4. Our range of services
5. FAQ
1515Contact:[email protected]+244 923 678 609
Our range of services
Sling fabrication following EN 13414-1
Wire rope sling fabrication
Sling fabrication following EN 13414 1 Aluminum ferrule assembly
Cable 6 x 36 grade 1960, in diameters 8, 13, 18, 22, 26, 32, 36 and 40mm
One to five legs slings
Hard or soft eyes
WLL from 0.82T to 20.55T for single leg slings
WLL from 1.74T to 43.59T for 4 legs slings
Possibility for conical ferrules and hook ending
DNV 2.7-1 lifting setsC tifi d t i l d d Certified material and procedures
Specific calculation note, validated by Bureau Veritas
Third party certificates
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Third party certificates
16Contact:[email protected]+244 923 678 609
Our range of services
Hooks
Supply of lifting equipments and accessories
Hooks With safety latch, range of WLL corresponding to our wire rope diameters
Endless round soft slings Various sizes from 1T to 10T
Weld-on pivoting links From 1T to 15T, particularly handy for sea fasteningFrom 1T to 15T, particularly handy for sea fastening
Turnbuckles Type G6313
Wire rope clamps Type CROSBY G450, corresponding to our range of wire rope diameters
Bow Shackles Bow Shackles Type CROSBY G-2130, from 1T to 25T
This range of equipments can evolve following your requests ask for our latest list
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This range of equipments can evolve following your requests, ask for our latest list.
17Contact:[email protected]+244 923 678 609
Our range of services
Load test
Other services
Load test Test bench with 1 500 kN capacity
Destructive and non destructive tests
Third party certificates
Engineering Equipment survey
Calculation notes for special lifting sets, like non symmetrical slings
Assistance to find the best solution for each case
Coordination with other departments from FRIEDLANDER Angola for fabrication of:
Spreader bars Spreader bars
Certified offshore containers (baskets, tool boxes, gas racks,…)
Offshore structural extensions
1818Contact:[email protected]+244 923 678 609
Table of content
1. Presentation1. Presentation
2 Review of norms and standards2. Review of norms and standards
3 Ho to chose a lifting set ?3. How to chose a lifting set ?
4. Our range of services
5. FAQ
1919Contact:[email protected]+244 923 678 609
Some answers to the most frequent questions you have:
What are the advantages of conical ferrules for swaging? It is safer for manual handling, as there are no more free strands out of the ferrule
The profiled end has less risk to catch a sharp edge while dragging the sling
Conical end, covering
Specific dyes for swaging
the free strands
Hole for control of wire rope extra length
Cylindrical body, similar to “standard” ferrules
Are you sure it is allowed for DNV 2.7-1 lifting sets fabrication? Yes: DNV 2.7-1 standard states that: “The terminations of wire rope legs shall be ferrule
secured eyes with thimbles, and comply with EN 13411-3 or other recognized standard.”
(§8.3.2.2 Wire rope slings). The conical ferrules and corresponding swaging procedure we
use are conform to EN 13411-3 (type C) therefore to DNV 2 7-1
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use are conform to EN 13411 3 (type C), therefore to DNV 2.7 1.
20Contact:[email protected]+244 923 678 609
Some answers to the most frequent questions you have:
Why are you only using cables from diameter 18 to 32mm for DNV lifting sets ? Even for the low ratings, the minimum WLL is 7000 kg (DNV 2.7-1, table 8-1)
Reference to EN 13414-1 for the cable BLmin = (WLL x g x ZP) / (KT x KL) with:
ZP = 5 (safety factor)
9 80665 N/k g = 9.80665 N/kg
KT = 0.9 (for swage termination)
KL = 2.1
BLmin = 179 840 N for the cable of a 4 leg sling
18mm is the smallest cable size with BL > 179 840 N not allowed to use smaller *
We use the same calculation for the maximum size, maximum rating is 25T, that gives a WLL
of 27 590 kg BLmin = 708 830 N
32mm is the smallest cable size with BL > 708 830 N no need to use bigger
* It is actually possible to use a smaller size of cable by reducing the angle for a particular use ,if a specific
t d d l l ti t i i d b t ll d ’t d it t id i f th li
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non standard calculation note is issued, but we usually don’t do it to avoid misuse of the slings.
21Contact:[email protected]+244 923 678 609
Some answers to the most frequent questions you have:
What standards could I follow for a load > 25T as DNV 2.7-1 can’t apply?
First of all, the standard of each Company should apply
For onshore or one time lifting offshore, EN 13414-1 is most often used
DAF might be added for offshore use
DNV 2.7-3 Standard covers offshore equipments that are regularly lifted, up to 50T
No specific description of lifting sets
Reference to DNV 2.7-1 same lifting sets up to 25T
Above 25T, enhancement factor can be extrapolate at the constant value of 1.1
For other cases, a specific calculation note can be done for the lifting set
2222Contact:[email protected]+244 923 678 609
Some answers to the most frequent questions you have:
Can you certify an existing sling ? We can only make a certificate of conformity for our own manufactured products
Several issues occur to certify a sling fabricated by another manufacturer: What material was used ? It is not possible to check the steel grade of the wire rope by mere visual
inspection
How was it assembled ? The process of assembly and the quality control along it are critical for the
certification of the final product
Alternative: we can make a load test under third party survey Alternative: we can make a load test under third party survey
Can you assemble a sling using our own material ? Yes, if the material is compatible with our fabrication process. The composition of the cable is
a particularly important point to check, for compatibility with our swaging equipment.
But the certification of the assembly is subject to the material certificate
Can you modify an existing sling ? Only if the sling was manufactured by ORSLING (same issues as for certification)
2323Contact:[email protected]+244 923 678 609
Some answers to the most frequent questions you have:
Why should we work with ORSLING? Quality of our final product, coming from the quality of the materials we use, the training and
dedication of our personnel
Reactivity of our workshop for emergency fabrication we use to deliver urgent lifting sets on
the same day we receive the orderthe same day we receive the order
Fabrication inside SONILS base no delay for material delivery
Frame contract with Bureau Veritas reactivity for third party certificationy y
Adaptability to manufacture customized lifting sets
Pro-activity from our management and our engineering department to propose you the best
solution for your needs
Collaboration with other departments of FRIEDLANDER Angola to propose complete lifting
solutions like spreader bars or certified basketssolutions, like spreader bars or certified baskets
Local content: 100% up to the Operation Manager !
2424Contact:[email protected]+244 923 678 609
FRIEDLANDER AngolaFRIEDLANDER AngolaRua Commandante Kima KyendaBoavista LuandaEmail : [email protected] : +244 917 750 692 / 932 339 292ORSLINGEmail : [email protected] : +244 923 678 609 www.orsling.com
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Tel : +244 923 678 609 www.orsling.com