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Plumbing System

Water tank:

Number and capacity: Three (3) baffled tanks totaling 250 gallons (946.4 Liters)

FRP construction with Vinylester resin and FDA approved gelcoat, per plan

Inspection plates: appropriately positioned for access

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

Wema water tank gauges

System built per PAE design

Water tank laid up with FDA approved gel coat

Fuel tank:

Number and capacity: Three (3) main tanks totaling 800 gallons (3028.3 Liters) with one centerline aluminum "Supply Reservoir" at 12 gallons (45 Liters) which will gravity feed from the two (2) main wing tanks and one (1) aft tank

FRP 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 three (3) fuel tanks. Top part of supply reservoir to hold approximately two (2) gallons (7.6 Liters) and fitted with a sight gauge with a one (1) gallon (3.8 Liters) range and 10th gallon (.4 Liter) marks for fuel consumption checks (supply lines are turned off and fuel is consumed from reservoir). Bottom part of reservoir to be approximately ten (10) gallons (37.8 Liters) fitted with a drain off at the bottom of the reservoir for water purging and with a water sensor - illuminating a light in wheelhouse if excessive water is present. Reservoir fitted with three (3) draw spigots for main, generator, and spare - mounted at lower level of reservoir but above water sensing probe. All returns from main, and generator plumbed into reservoir

Sight gauges on all three tanks

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

Provide baffles on 24" (61 cm) centers

A transfer manifold and Walbro (FRB 16-2) fuel pump with timer switch and Racor 900MA 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

System to be built per PAE design

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 fittings

Fuel line from supply reservoir to main engine filter is 1/2" (1.27 cm) I.D. with Aeroquip brand fuel hose and swaged fittings

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

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

Fuel fill hose to be Trident #A2 type, 2" (5.08 cm) I.D. US Coast Guard approved

Water hoses:

Hot water: 3/4" (1.9 cm) supply 1/2" (1.27 cm) diameter distribution. Shurflo brand "Shurpex semi rigid tubing or equivalent with all Shurpex red fittings per system drawing

Cold water: 3/4" (1.9 cm) supply 1/2" (1.27 cm) diameter distribution Shurflo brand "Shurpex semi rigid tubing or equivalent with all Shurpex blue fittings per system drawing

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

Water heater: Seaward # S1150 or Attwood 11 gallon (41.6 Liters) for 220 volt and heat exchanger operation


Thru Hulls: bronze body, stainless steel balls and Teflon seats

Grounding wire: #6 gauge green wire run to 1/8" x 3/4" (3.2 mm x 19 mm) copper strap that runs down both sides of hull

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

Fresh water pressure pump: One (1) Jabsco Sensor Max VSD #31765-0094

Plumbing fixtures:

Head sinks: HCG #3371 like N64

Galley sink: Large double stainless steel sink

Head faucets: Grohe model #33170 000 chrome

Galley faucets: Grohe model #33939 1B0 chrome with black

Shower fixtures: Grohe chrome #28.175 handle

#28.631 soap tray

#28.620 24" (61cm) shower bar

#28.151 non-metallic hose

#34.436 mixer

Bilge pumps: per PAE design

Electric: Par #34600-10 24 volt electric diaphragm pump with Ultra Junior auto float switch #UPS-02 24 volt

Manual: Edson model #638AL operable from main salon

High water bilge pump Rule 3700 gallons (14,006 Liters) per hour #16A - mounted in bilge above normal bilge water height including Ultra Sr. pump switch #UPS-01 24 volt and Ultra bilge alarm #A-201-S Surface mount panel


Tecma "Silence Plus Short" fresh water flush only with 3/4" (1.9 cm) fresh water supply

Head fitted with a Par #45510-1000 Y valve allowing sewage to be pumped overboard or into holding tank

Holding tank: FRP

Holding tank pump: Sealand T-24, 24 volt plus Whale/Henderson #BP0527 hand operated diaphragm pumps to be installed in-line with each other per PAE design

Holding tank fitted with a deck pump out

Sealand Tank Watch 4 monitoring system

All holding tank and toilet hoses to be Trident #102


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

LPG system

Two (2) Worthington #D200145WCI 20 lb. (9.07 kg) LPG bottles in port side transom locker

Xantex control panel and detection system S-2A and MS-2 sniffer / 24-12 volt converter (CVN 24-12)

Two-stage regulator #12301411

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

All necessary pipe fittings and adapters

Showers to drain with 24 volt sump pumps:

Whale "Gulper 220" #BP1554 24 volt DC 2.5 amp x two (2)

30 minute timer switch x two (2)

*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: 720/09



Nordhavn Fleet