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Plumbing System

Water tank:

Number and capacity: Three (3) tanks totaling 300 gallons (1135.6 Liters)

Fiberglass construction using vinylester resin and FDA approved gelcoat on inside of tank construction per plan

Inspection plates: Appropriately positioned for access

Two sight gauges to monitor water level in upper tanks

Each tank air tested: 4 lbs (1.81 kg) per sq. inch

Fuel tank:

Number and capacity: Two (2) main tanks totaling 1200 gallons (4542.5 Liters) with one centerline aluminum 'Day Tank' at 40 gallons (151 Liters) which will gravity feed from main tanks

Fiberglass construction with vinylester resin per plan

Inspection plates appropriately positioned for interior access by average size man. Each internal baffle with a removable panel to allow access to entire interior of both fuel tanks

Fuel system to include an aluminum supply reservoir, which feeds by gravity from both fuel tanks. Top part of supply reservoir to hold approximately two (2) gallons (7.5 Liters) and fitted with a sight gauge with a one (1) gallon (3.5 Liter) range and a 10th gallon (.4 Liters) marks for fuel consumption checks (supply lines are turned off and fuel is consumed from reservoir). Bottom part of reservoir to be approximately 40 gallons (151 Liters) fitted with a drain off at the bottom of the reservoir for water purging and with a water sensor - illuminating a light in wheel house if excessive water is present. Reservoir fitted with four draw spigot valves for main, generator, wing engine and spare - mounted at lower level of reservoir, but above water sensing probe. All returns from main, wing and generator plumbed into reservoir

Sight gauges provided for both fuel tanks and are vented into the main vent system for each tank

Each tank to be air tested to 4 lbs (1.81 kg) per sq. inch

Baffles on 24" (61 cm) centers

A transfer manifold and Walboro(FRB13-2) fuel pump with timer switch and Racor 900 fuel filter which can transfer fuel from one tank to another and scrub fuel while transferring. Transfer is also used to fill top part of supply reservoir for consumption testing when main fuel tank level drops below the level of the testing part of the reservoir

Fuel pipe and hose:

Supply lines from tanks to supply reservoir are 3/4" (1.9 cm) I.D. with Aeroquip brand fuel hose and swaged brass fittings

Fuel line from supply reservoir to main engine filter is 3/4" (1.9 cm) I.D. with Aeroquip brand fuel hose and swaged brass fittings

Fuel lines from supply reservoir to optional generator and wing engine to be 1/2" (1.27 cm) I.D. with Aeroquipbrand fuel hose and swaged fittings

Vent lines to be fuel certified, reinforced hose 3/4" (1.9 cm) I.D.

Install fuel fills on side decks - as on N40 with vent lines inboard

Water hoses:

Cold water 1/2" (1.27 cm) diameter Whale tubing system or equivalent with all Whale fittings

Hot water 1/2" (1.27 cm) diameter Whale tubing with all Whale fittings

Sea water hoses: Tridentreinforced rubber certified for marine use and provided with double stainless steel clamps below the water line

Water heater:
Seaward #S1100 or Attwood (11 gallon ) (42 liters) 110 volt and heat exchanger operation

Thru hulls:
Bronze body, stainless steel balls and Teflonseats

Grounding wire: #6 gauge green wire

Each thru hull to have a clearly visible tag indicating its function

Fresh water pressure pump:
#VSD31755-0000 Jabsco Sensor Max

Plumbing fixtures:

Head sinks: Sea-Land #1620 oval color white x two (2)

Galley sink: double stainless steel Polar # 102110 with 3" (7.6 cm) drain fittings

Head faucets:Grohe model #33170 000 chrome

Galley faucets: Grohemodel #33939 1B0 chrome with black

Shower fixtures: Grohe chrome #28.049 handle

#28.786 soap tray

#28.820 24" (61 cm) shower bar

#28.151 non-metallic hose

#34.436 thermostat valve

Gray water tank:

Galley sink, head sinks, shower sumps and washing machine drain to 50 gallon (189.3 Liters) sump tank. Each drain to have an appropriate water trap to control odors. Sump to include SealandTank Watch 4 level indicator and a Sealand T12 waste pump fitted with anUltraJr. pump switch and auto/manual control panel. Whale/Henderson #BP0527 hand operated diaphragm bilge pump to be installed in line with Sealand T12 for manual pumping of gray water tank per design

Bilge pumps:

Electric: Par 34600-00 diaphragm 10.8 gallons (40.88 Liters) per minute with Ultra switch auto switch

Manual: Edson model #638AL operable from main salon

High water bilge pump Rule3700 gallons (14,006 Liters) per hour (55S) - mounted in bilge above normal bilge water height including UltraSr. pump switch and Ultra bilge alarm


Tecma Silence Plushead in owners stateroom head

Tecma Silence Plushead in guest stateroom head

Head fitted with a Par #45510-0000 Y valve allowing sewage to be pumped overboard or into holding tank

Holding tank: Fiberglass

Holding tank pump: Whale hand operated diaphragm

Holding tank fitted with a deck pump out

Sealand Tank Watch 4 monitoring system with tank master

All hoses throughout boat to be Tridentbrand with CE approval - where practical

LPG system: System to comply with all ABYC recommendations

Two (2) Worthington #D200145WCI 20 lb. (9.07 kg) (LPG aluminum bottles)

TridentLPG control panel and detection system #1300-7715. Sniffer behind stove/oven and in LPG locker

Two stage regulator #12301411

Trident 'Pig Tail' hoses x two (2) #1014140120

All necessary pipe fittings and adapters

Trident LPG hose to suit

*Specifications subject to change without notice and at the discretion of designers and builders.
**Dimensions are subject to change with Buyer’s selected options and personal effects which may add to displacement and increase both draft and waterline length

Last updated: 7/20/09



Nordhavn Fleet