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Prosertek Prosertek
  • Home
  • Harbour equipment
    • Berthing Aid System
      • Download BAS brochure
      • Modules
        • Dockmoor-BM
        • Dockmoor-MS
        • Dockmoor-HDT
        • Dockmoor-ER
        • Dockmoor-FP
        • Dockmoor-LD
        • Dockmoor-RR
        • Dockmoor-Web
      • Success stories
    • Quick Release Hooks
      • Configuration
      • Auxiliar systems
        • Capstan
        • Automatic release
        • Load pin
      • Specifications
        • Material
        • Work loads
        • Paint
        • QRH Consumptions
      • References
    • Marine Gangways
      • Download gangways brochure
      • Types of gangways
      • Specifications
        • Regulation
        • Elements
        • Handling and control
        • Actuators and movements
        • Operative modes
      • References
    • Boarding Bridges
      • Download boarding bridges brochure
      • Regulations
    • Marine Cranes
      • Configuration
      • Specifications
        • Hydraulic group
        • Power and control
    • Marine Fenders
      • Types of fenders
        • SC Type
        • TCN Type
        • HZ Type
        • IV Type
        • V, VA, TTV & TTVA Types
        • C Type
        • FL, FLN & FLE Types
        • EC, ECN & ECR Types
        • Other types
      • Specifications
        • Regulation
        • Energy absorption
        • Components
        • Materials
      • References
    • Marine Bollards
      • Download bollards brochure
      • Types of bollards
        • TEE-P Bollard
        • HORN-P Bollard
        • STRAIGHT-P Bollard
        • HAMMER-P Bollard
        • DOUBLE-P Bollard
        • INCLINED-P Bollard
      • Specifications
        • Materials
        • Paint
      • References
  • Services
    • Engineering
    • Technical assistance service
    • Bollard tests
    • Underwater maintenance
    • Portable Pilot Unit
  • Downloads
  • About us
    • Management System
    • Milestones
    • Facilities
    • Gallery
  • Blog
  • Contact
  • Technical Assistance

Work loads

Prosertek / Harbour equipment / Quick Release Hooks / Specifications / Work loads

Safety work load (SWL)

QUICK RELEASE HOOKS (QRH) CAPACITY
SIMPLE
DOUBLE
TRIPLE
QUADRUPLE
SWL/hook
[KN]
SWL/Station
[KN]
SWL/hook
[KN]
SWL/Station
[KN]
SWL/hook
[KN]
SWL/Station
[KN]
SWL/hook
[KN]
SWL/Station
[KN]
500
500
500
1000
500
1500
500
2000
750
750
750
1500
750
2250
750
3000
1000
1000
1000
2000
1000
3000
1000
4000
1250
1250
1250
2500
1250
3750
1250
5000
1500
1500
1500
3000
1500
4500
1500
6000
1750
1750
1750
3500
1750
5250
1750
7000
2000
2000
2000
4000
2000
6000
2000
8000
2250
2250
2250
4500
2250
6750
2250
9000
2500
2500
2500
5000
2500
7500
2500
10000

 

Safety coefficient for calculation:

  • 1,5 SWL against the elastic limit of the material
  • 2,5 SWL against the breaking load

Protection types:

  • IP
    • Motor: IP56
    • Reductor: IP56
    • Enclosure: IP66
    • Pushbuttom: IP66
    • Junction box: IP66
  • ATEX / IECEX
    • Zone 1, Group: IIB, T3: II 2G c IIB T3
    • Gearbox: II2G c IIB T4
    • Enclosure: II 2G EEx d IIB T4
    • Junction box:  II2G EEx ia IIC T6/T5
QRHloadtest-prosertekQuick Rerlease Hook load testing

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