Drass
Tecnologie Sottomarine
Guide Wire Shock Absorber
System - Mk1
FD30-Diving Equipment
DS.HS.011
Description
The Guide Wire Shock Absorber system design is a property of Drass,
aimed to allow the vessel to perform the diving operation in more difficult
sea status, i.e. with higher significant wave.
The principle of the shock absorber system is to reduce the pick loads,
and consequently the stress and the fatigue on the handling system and
on the ship structure where handling system is connected.
Main Components are:
1. Hydraulic piston : it is a double chamber single effect piston.
2. Sheave : running wire sheaves for a ø22 steel wire rope
3. Accumulator : 2 separate hydraulic accumulator packs (3 bottles
each pack) to supply the pressure to oil side of the piston.
The shock absorber system in intrinsically provided with the necessary
redundancies required by DNV.
The whole system is certified by DNV – Lifting Appliance Department.
Picture 1. Guide Wire Shock Absorber
Drass reserves the right to modify/improve the present specification without notice
prior to the order issue.
1
FD30-Diving Equipment
DS.HS.011
Guide Wire Shock Absorber System
TECHNICAL DATA
Cylinder bore
Piston rod
Stroke
Design Pressure
Testing Pressure
Working Pressure
Design and Operating Temperature Range
Wire pull
Weigth
Picture 2. Guide Wire Absorber Layout
Drass
Tecnologie Sottomarine
DRASS GROUP OF COMPANIES
VIA N. MAGRI, 112 – 57121 – LIVORNO - ITALY
PHONE: +39 0586 421221
FAX: +39 0586 421223
www.drass.it
[email protected]
2
ø180 mm
ø 90 mm
1600 (800+800) mm
186 bar
279 bar
195 bar
-12 ÷ +55°
84 kN Max
950 kg