Product Datasheet
MDL Portable Horizontal Lay System
The MDL HLS-300 is a portable horizontal lay system for the
deployment and recovery of subsea umbilicals, risers
and flowlines (SURF). The system allows for safe and efficient
deployment of product from on-deck reel drive
systems and carousels.
Project Focused: The high tension chute is fitted with a water
lubrication system. The hang off beams have two integrated 10 Te
SWL swivel D links for tailing operations.
Safe: E-stops mounted at each end of the HLS base frame allowing
for safe control of operations.
Optional Extras: As each project has different requirements, the
following optional extras can be supplied with the HLS:
• 5.2m radius high tension chute
• 2 x 2Te SWL hydraulically operated davit arms, complete with
180 degree pivot to aid jewellery handling
• Various radius moonpool door tulip (departure flare)
• Hang-off plate (half shell clamps) to suit the products to be
installed
• Integrated pull-through winch
• The high tension chute can be fitted with a low friction UHMPE
coating
Rev:
02
T +44 (0)1224 252900 E [email protected] W
www.maritimedevelopments.com
Key BenefitsModularity: A modular system that is road
transportable for economical road/sea transport.
Easily mobilised: Assembled on the quayside and lifted on board
in one lift for the HLS, and second lift for the tensioner.
User friendly: Hydraulically operated moonpool doors and hang
off beam. Padeyes to aid product handling, strategically placed
around the firing line. Pad basket storage located beside the
tensioner to provide access for safe and efficient tensioner pad
change-out when offshore.
Accessible: All operational areas of the HLS are accessible by
ladders and walkways, complete with handrails. Sufficient lighting
throughout to facilitate 24-hour operations with an integrated
power supply.
Versatility: Designed to integrate the full suite of MDL
tensioners for the full range of product diameters. The high and
low tension chutes pivot to allow for diameter changes. This
provides a consistent product transition into and out of the
tensioner with project- driven diameter changes.
MARITIME DEVELOPMENTS LTDMaritime House | Discovery Drive |
Westhill | AB32 6FG | UK
OPERATIONS CENTREWilson St | Peterhead | AB42 1UD | UK
MARITIME DEVELOPMENTS INCC 900 Town and Country Ln | Houston |
TX 77024 | USA
• Integrated HPU
Image shown with MDL TTS 4/375 Series Tensioner - please refer
to datasheet
Operational SpecificationLay spread type Portable Horizontal Lay
System
Dimensions21.8m x 10.5m x 11.8m (LxBxH)
With moonpool open 21.8m x 10.5m x 11.8m (LxBxH)
Weight (excl. tensioner) 98Te
Operational Specification (cont)Work platform deck area 30m2
Work platform deck capacity 1Te/m2
Work platform opening 3.6mClearance between overboarding chute
and hang-off beam 3.7mClearance between chain hook and hang-off
beam 2.1m
Lifting EquipmentAll items supplied with integrated lift points
and swivel lift eyes.
System suitable for onshore lifts in accordance with DNV
standards.
If davit arms are supplied these will be provided with manual
5Te chain hoists on trolleys.
Product Handling RequirementsMax product tension 75Te (dynamic
load)
Product diameter 50mm - 600mm OD
Entry chute radius 3m
Overboarding chute radius 4.0m (options available)
Hang-off beam capacity 75Te
MDL HLS-300
Power Requirements (HLS only)3 phase, 440V (+earth), 60Hz
140 amp supply
36kW HPU required
Assumed ConditionsHumidityUp to 100%
AtmosphereMarine/high salinity
Design temperature Operational: -10ºC to +50ºC Survival: -20ºC
to +65ºC
Image shown with MDL TTS 4/375 Tensioner please refer to
datasheet
