NPDS 3500H Harding Technical Data Sheet.pdf
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- FY25 Essayons Overhaul
- Solicitation number
- W9127N24B0011
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This document is a technical datasheet for the NPDS 3500H Harding davit, which is a hydraulically pivoting davit system for rescue boat handling. It provides detailed specifications on the davit, winch, electrical system, hydraulic system, wire rope, painting, and optional accessories. The davit is certified to meet IMO/SOLAS, LSA Code, and European Council Directive 96/98 EC on Marine Equipment (MED) requirements, with DNV GL certification. Key details include a safe working load of 3,200 kg, maximum lowering height of 18 m, and total system weight of 3,080 kg. The datasheet also lists various options such as ladders, shock absorbers, winterization, and anti-sway systems.
The related federal contract opportunity is for the overhaul, maintenance, and repair of the U.S. Army Corps of Engineers (USACE) Dredge ESSAYONS, a trailing arm suction hopper dredge. The contract will be awarded as a firm fixed-price job order under a Master Ship and Repair Agreement (MSRA). Prospective contractors must have an active MSRA with the USACE Portland District prior to award. The solicitation is issued on a full and open competition basis, with bids due via email. Key work items include drydock services, hull coatings, valve and piping repairs, propulsion system maintenance, and dock/sea trials.
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TECHNICAL DOCUMENTATION
Doc. no.: DSP1505 Doc. name: Technical datasheet Rev.: 02
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T hi s do cu m en t a nd it s co nt en t i s th e pr op er ty o f H ar di ng S af et y
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Rev.: Edition date: Reason for issue: Prep. Check. Appr.
02 03.07.2015 Updated information KHL IJH BY
NPDS 3500H
Technical datasheet
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Doc. no.: DSP1505
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T hi s do cu m en t a nd it s co nt en t i s th e pr op er ty o f H ar di ng S af et y
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Certified Quality Applicable rules and regulations : In accordance with IMO/ SOLAS requirements, LSA Code and European Council Directive 96/98 EC on Marine Equipment (MED).
Certification authority : DNV GL (other on request)
Davit Model : Totally enclosed davit Type : NPDS 3500H
Weather protection level : High. All major components are inside the davit Application : Rescue boat handling Drawing reference : I-1078-000 Execution : Hydraulic pivoting davit Boarding position : Inboard Safe Working Load (SWL) : 3200 kg Trim / list conditions : 10° / 20° Max. lowering height : 18 m (at 0° / 0°) Max. lowering / hoisting speed : Hydraulically 18 m/min Max. lowering speed (emergency) : According to SOLAS regulations (S = 0.4 + 0.02H) Hoisting (emergency) : Manually (by means of hand pump) Pivot bearing type : Lubricating free Wire sheaves : Lubricating free Installation : 3 (three) deck welding points only (reduced installation time) Deck reinforcement requirements : See general arrangement Total system weight : 3080 kg (including winch) Total system H / W / D : 3615 mm / 1282 mm / 3145 mm Deck space required : 4 m2 only (including hydraulic system) Operation temperature : -20°C till +50°C (other on request)
Winch Type : NW 3500H Drawing reference : I-1078-000 Execution : Hydraulically hoisting / lowering Brakes type : Negative multi-disk brakes with hydraulic opening control Speed control : Two-step speed control included for safer operation
Electric System Electric power supply : 440/3ph/60Hz (other on request) Electrical cabinet : IP66 Pendant control : IP66 Limit switch : IP67 Power consumption : 21 kW Starting method : Direct on line Duty rating : S2-5 min Motor space heating : Included Electrical cabinet space heating : Included Wiring : Included, (only power supply cable required) Cables type : Marine type, flame retardant halogen free
Hydraulic System Type : Independent integrated hydraulic system Oil flow : 45 l/min
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Max. working pressure : 240 bar Oil amount : 180 l Hydraulic accumulators : 2 x piston type (19 l) System fittings : ISO 8434-1 (DIN 2353) cutting ring fittings Materials : Fittings and hose fittings - steel zinc plated Cr(VI)-free Pipes - E355 Cr(VI)-free UV and weather protection : Shielded from environmental exposure
Wire Rope Wire rope type : Galvanized, non-rotating (certified item) Wire rope diameter : 16 mm Wire rope construction : 35x7 Inner / outer wire end : Secured to drum / thimble Shackle : Included (certified item) Master link w/handle : Included (certified item)
Painting System Painting system : Included Blasting : SA 2.5 Coating : Three (3) layers (other on request) Layer 1 Interseal 670 HS - 100 µm - Alu Layer 2 Interseal 670 HS - 100 µm - Grey Layer 3 Interthane 990 - 50 µm - RAL 9003 Total dry film thickness : 250 µm
Boat Charger Transformer : Included, 440/42VAC (other on request)
Remote Control Type : Pushbutton, 5 buttons Lowering control : Yes, two-step speed control (hydraulic) Hoisting control : Yes, two-step speed control (hydraulic) Emergency stop : Yes, mushroom type
Optional Items Ladder : Embarkation ladder Shock absorber : Hydraulic type, absorb and damp shock impulses Winterization / cold climate : Entire davit heating (not only e-cabinet), special steel (-40°C)
Metallizing : Thermal spraying (extra corrosion protection of surface) Ex-proof : II 2 G Ex de IIB T3 (other on request) Anti-sway system : Stable and efficient pivoting operation (out / in) Boat supports : Additional stability of boat in stowed position Aluminum hinges : Aluminum deck installation Skid : Mobile and onshore installation Additional lowering height : 19 - 36 m (at 0° / 0°)
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