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Thru hulls, valves & fittings

Through-hull fittings are located mostly below the waterline. These skin fittings function as seawater inlet (i.e. for engine cooling or toilet flushing) or wastewater outlet. Thru-hull fittings like external intake strainers or sieves or sieve baskets for mounting onto the hull prevent foreign bodies from blocking the inlet. Sea valves or seacocks are installed as shut-off valves behind the thru-hull fittings. These prevent the ingress of water in case of defects or work on the piping system. For safety reasons the valves should be kept closed when not in use. …

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148 products
Brass pipe-to-hose fitting
Brass pipe-to-hose fitting
Brass pipe-to-hose fitting with external thread and hexagon. Available for different hose diameters.Thread type: BSPThread form: parallelThe thread sizes are nominal sizes and do not indicate the thread diameter.

From €3.20 *
Details
Brass pipe-to-hose fitting
Brass pipe-to-hose fitting
Bronze pipe-to-hose fitting
Bronze pipe-to-hose fitting
Bronze pipe-to-hose fitting with external thread and hexagon. Available for different hose diameters.Thread type: BSPThread form: parallelThe thread sizes are nominal sizes, they do not indicate the thread diameter.

From €7.65 *
Details
Bronze pipe-to-hose fitting
Bronze pipe-to-hose fitting
Seawater-proof bronze thru-hull
Seawater-proof bronze thru-hull
Standard length through hull fitting.Made from saltwater resistant bronze alloy CC491K (CuSn5Zn5Pb5-C).Thread type: BSPThread form: parallelThe thread sizes are nominal sizes, they do not indicate the thread diameter.You can find suitable seawater-resistant bronze strainers under accessories.

From €23.90 *
Details
Seawater-proof bronze thru-hull
Seawater-proof bronze thru-hull
Brass reducer with internal/external thread
Brass reducer with internal/external thread
Bronze reducers.BSP inner and outer threads.The thread sizes are the nominal sizes and not the diameter.

From €3.30 *
Details
Seawater-resistant bronze angle 90°
Seawater-resistant bronze angle 90°
90° angle with inner and outer threads. High quality fitting made from seawater-resistant bronze alloy. The nominal sizes are the thread sizes (BSP) and do not indicate the thread diameter!

From €7.90 *
Details
Brass T-junction internal thread
Brass T-junction internal thread
Brass fittings.

From €5.40 *
Details
VIR bronze ball valve
VIR bronze ball valve
Branded ball valve made of seawater-resistant bronze alloy CB491K CuSn5Zn5Pb5-B with full bore. Female thread to ISO 228/1 on both sides, the ball is made of hard chrome-plated brass CW617N with PTFE sealing shells. The lever is made of steel with a special GEOMET corrosion coating, with red PVC coating. Nominal working pressure PN40.A lockable lever is available (see accessories).Gewindeart: BSPGewindeform: zylindrisch, bzw. parallelDie Gewindegrößen sind Nenngrößen, sie bezeichnen nicht den Gewindedurchmesser.

From €19.95 *
Details
VIR bronze ball valve
VIR bronze ball valve
VIR bronze ball valve
GUIDI Ball Valve Bronze with hard chrome plated brass ball
GUIDI Ball Valve Bronze with hard chrome plated brass ball
Ball valve made of the seawater-resistant bronze alloy CC499K (CuSn5Zn5Pb2-C), specially developed for marine applications.The ball is made of hard chrome-plated brass CW617N, an additional special surface treatment prevents the adhesion of dirt and incrustations. The shaft is made of seawater-resistant brass CW625N, the lever and fixing nut are made of stainless steel 304.The lever is coated with PVC (the colour may differ from the one in the photo).Thread type: BSPThread form: parallelThe thread sizes are nominal sizes, they do not indicate the thread diameter.

From €39.00 *
Details
GUIDI Ball Valve Bronze with hard chrome plated brass ball
GUIDI Ball Valve Bronze with hard chrome plated brass ball
GUIDI Ball Valve Bronze with hard chrome plated brass ball
GUIDI Ball Valve Bronze with hard chrome plated brass ball
Manual ball valve TRUDESIGN
Manual ball valve TRUDESIGN
On both ends BSP internal thread, colour black with blue handle and a locking nose for a padlock.The ball cock is smooth-running, the ball PTFE sealed with reduced passage.Also available on request with sensors for an electronic position indicator. See under similar products.TRUDESIGN is the world leader in fittings made from composite materials. From its founding in 1974 the fittings are manufactured in New Zealand. Every TRUDESIGN part is made from high tensile composite GRP, a glass fibre reinforced Polyamide (6). The advantages are a high rigidity, temperature-resistance -40° to 80° C, resistant to oil and chemicals, of low weight, absolutely corrosion-resistant, electrically non-conductive and therefore especially suited for ship building materials which are galvanically sensitive like aluminium and steel.Every TRUDESIGN fitting has a tapered Whitworth pipe thread BSP (British Standard Pipe Thread) according to ISO 228-1, it is therefore fully convertible with fittings from brass, bronze or stainless steel. The shuttle valves and through hulls are approved and IMCI certificated after ISO 9093-2 (sea cocks and through hulls for pleasure vessels).

From €52.95 *
Details
Brass pipe-to-hose fitting 90° with external thread
Brass pipe-to-hose fitting 90° with external thread
90° elbow hose nozzle made of brass, with external thread and hexagon for screwing in. For various hose diameters.Thread type: BSPThread form: cylindrical or parallelThe thread sizes are nominal sizes, they do not indicate the thread diameter.

From €4.90 *
Details
Brass pipe-to-hose fitting 90° with external thread
Brass pipe-to-hose fitting 90° with external thread
Bronze gate valve GUIDI
Bronze gate valve GUIDI
Sleeve gate valve with a housing of seawater-resistant bronze, heavy design with full run-through on both sides and inner threads. Hand wheel of painted steel, the shaft ist made of brass.Max. working pressure, 16 bar.Thread type: BSPThread form: parallelThe thread sizes are nominal sizes, they do not indicate the thread diameter.

From €16.50 *
Details
TRUDESIGN Long Thru-Hull Fitting
TRUDESIGN Long Thru-Hull Fitting
140 mm long through-hull fitting with a mushroom-shaped outer flange. Suitable for ships with a hull thickness of more than 33 mm.  With BSP thread.Available in white or black.TRUDESIGN is the world market leader in the production of fittings made of composite material. The fittings have been manufactured in New Zealand since the company was founded in 1974. All TRUDESIGN products are made of high-strength composite plastic, a glass fiber reinforced polyamide. Advantages: High strength, temperature resistant -40° to 80°, oil and chemical resistant, low weight, absolutely corrosion resistant, electrically non-conductive, therefore particularly suitable for galvanically sensitive shipbuilding materials such as aluminum and steel. All TRUDESIGN fittings have a cylindrical Whitworth pipe thread BSP (British Standard Pipe Thread) in accordance with ISO 228-1 and can be used together with Armaturn made of brass, bronze or stainless steel without any problems.The ball valves and flanges are approved and certified to ISO 9093-2 by IMCI and BUREAU VERITAS.

From €15.50 *
Details
TRUDESIGN Long Thru-Hull Fitting
TRUDESIGN Long Thru-Hull Fitting
TRUDESIGN Long Thru-Hull Fitting
TRUDESIGN Long Thru-Hull Fitting
Bronze adapter with external thread
Bronze adapter with external thread
Connector, outer threads on both sides. Bronze. Thread sizes are the nominal size (BSP) and do not indicate the thread diameter.

From €6.70 *
Details
Seacock grease
Seacock grease
Grease for sea cocks.

€35.50 *
Details
Seacock grease
Seacock grease
Pipe-to-hose fitting 90° external thread TRUDESIGN
Pipe-to-hose fitting 90° external thread TRUDESIGN
Outer thread BSP, hexagonal, colour black, 90° angled fitting. TRUDESIGN is the world leader in fittings made from composite materials. From its founding in 1974 the fittings are manufactured in New Zealand. Every TRUDESIGN part is made from high tensile composite GRP, a glass fibre reinforced Polyamide (6). The advantages are a high rigidity, temperature-resistance -40° to 80° C, resistant to oil and chemicals, of low weight, absolutely corrosion-resistant, electrically non-conductive and therefore especially suited for ship building materials which are galvanically sensitive like aluminium and steel. Every TRUDESIGN fitting has a tapered Whitworth pipe thread BSP (British Standard Pipe Thread) according to ISO 228-1, it is therefore fully convertible with fittings from brass, bronze or stainless steel. The shuttle valves and through hulls are approved and IMCI certificated after ISO 9093-2 (sea cocks and through hulls for pleasure vessels).

From €7.95 *
Details
Ball valve CR-brass
Ball valve CR-brass
High-quality brass ball valve with full passage. All components are made from a corrosion resistant brass alloy CW602N - CuZn36Pb2AS.On both ends with BSP internal thread according to ISO 228, the ball hard chromed with sealant shells from PTFE. Hereby a long lasting light operation is guaranteed.The lever is made from steel and is protected from corrosion by a special PVC coating.Thread type: BSPThread form: parallelThe thread sizes are nominal sizes, they do not indicate the thread diameter.

From €19.95 *
Details
Ball valve CR-brass
Ball valve CR-brass
Brass reducer with external thread
Brass reducer with external thread
Brass reducers. BSP outer threads on both ends (thread sizes are the nominal sizes, not the diameter).

From €3.50 *
Details
Brass angle 90° with internal/external thread
Brass angle 90° with internal/external thread
90° angle with inner and outer threads. High quality brass fitting. The nominal sizes are the thread sizes (BSP) and do not indicate the thread diameter!

From €3.90 *
Details
Seawater-resistant bronze angle 45°
Seawater-resistant bronze angle 45°
45° angle with inner and outer threads. High quality seawater-resistant bronze fitting. The nominal sizes are the thread sizes (BSP) and do not indicate the thread diameter!

From €6.90 *
Details
Seawater-proof bronze T-junction internal thread
Seawater-proof bronze T-junction internal thread
T-piece, inner threads.High quality seawater-proof bronze fitting.The nominal sizes are the thread sizes (BSP) and do not indicate the thread diameter!

From €9.90 *
Details
Bilge strainer WHALE
Bilge strainer WHALE
With integrated check valve for hoses of 25 mm and 38 mm.With sieve on the outboard side.

€35.90 *
Details
Seawater-proof bronze sleeve with internal thread
Seawater-proof bronze sleeve with internal thread
Sleeve, inner thread/inner thread.High quality seawater-proof bronze fittings.The nominal sizes are thread sizes (BSP) and do not indicate the thread diameters!

From €6.90 *
Details
Brass thru-hull, inner curvature/ long
Brass thru-hull, inner curvature/ long
Made of brass (seawater-resistant copper alloy CW602N - CuZn36Pb2AS), slightly inward curved face. Slightly recessed flange. For insertion into the hull. With sturdy washer.Thread type: BSPThread form: parallelThe thread sizes are nominal sizes, they do not indicate the thread diameter.

From €12.90 *
Details
Brass thru-hull, inner curvature/ long
Brass thru-hull, inner curvature/ long
3-way T-shaped plastic hose connector
3-way T-shaped plastic hose connector
Plastic fitting to connect hoses of equal diameters.

From €3.20 *
Details
… Commonly used types of sea valves are ball valves, sleeve gate valves, tapered cone sea valves or cylindrical sea valves. Just as thru-hull fittings, marine valves are made of various materials - seawater resistant cast bronze, bronze, gunmetal or brass. In the yacht sector, sea valves are often made of modern plastics. For connection to pipes or hoses, we offer standardized pipe-to-hose fittings, reducers and hose adaptors which can be connected to the stopcock with an appropriate sealing material. Check the area of through-hulls regularly for damage. For damaged components, it is recommended to replace them as soon as possible. If things get critical leakage plugs can help to calm the situation. Don't forget to freeze-proof the valves in winter.