Page 1
PRODUCT
INFORMATION
SKIN FITTINGS
Designed and made in New Zealand, Tru-Design Skin Fittings are the superior composite thru-hull
solution.
The Skin Fitting body and nut are moulded from glass fibre reinforced nylon composite. High
strength, high-modulus glass fibres impregnated into the nylon provide dramatic strength, stiffness,
toughness and dimensional stability. These properties allow a significant weight reduction over
metallic fittings.
Tru-Design Skin Fittings eliminate the corrosion and electrical bonding problems associated with
metallic fittings.
Our Skin Fittings meet ISO International Standards giving added assurance of performance in the
harsh marine environment.
MODELS
Part #
90425 Skin Fitting ½” BSP White
90432
90423 Skin Fitting 1” BSP White
90421 Skin Fitting 1¼” BSP White
90419 Skin Fitting 1½” BSP White
90429 Skin Fitting 2” BSP White
90424
90431
90422 Skin Fitting 1” BSP Black
90420 Skin Fitting 1¼” BSP Black
90418 Skin Fitting 1½” BSP Black
90428 Skin Fitting 2” BSP Black
Description
Skin Fitting ¾” BSP White
Skin Fitting ½” BSP Black
Skin Fitting ¾” BSP Black
Doc: PIS - Skin Fittings 3.0.doc Page 1 of 4
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STANDARDS
Tru Design Skin Fittings are certified by the
International Marine Certification Institute
(IMCI) to meet;
ISO 9093-2 Small craft -- Seacocks and
through-hull fittings -- Part 2: Non-metallic
*Note – ½” Skin Fittings do not meet ISO 9093-2
In meeting ISO 9093-2, our skin fittings have been tested with a 155kg load
hanging off a ball valve and hose fitting as shown.
KEY FEATURES
PRODUCT
INFORMATION
Feature :
Manufactured from a glass reinforced
nylon composite
Compatible with all hull types Can be used on aluminum, steel, wood or FRP hulls.
Immune to corrosion and electrolysis Long life with no concerns over decreased performance
Chemical resistant Impervious to diesel, petrol and antifouling paints.
UV resistant These fittings will not break down with ultraviolet light or
High quality surface finish Will not discolour with green film as similar bronze fittings
Paintable Can be painted with all types of antifouling.
Fits Tru-Design Ball Valves & BSPP
threads
Large operating temperature range Suitable for all marine environments, from -40°C to
Supplied in individual plastic bags with
header card and information sheet
High strength and light weight.
due to corrosion.
discolour from the sun.
do.
Antifouling paint stays adhered to the skin fitting,
alleviating the chore of grinding and cleaning back flaked
paint from bronze fittings before applying antifouling.
Universal compatibility to other Tru-Design fittings, and
other marine components.
+110°C.
Header card states IMCI Certification, size of hose tail
and comes with instructions in the bag as per IMCI
regulations.
Doc: PIS - Skin Fittings 3.0.doc Page 2 of 4
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Page 3
PRODUCT
INFORMATION
SPECIFICATIONS
HULL COMPATIBILITY
The Tru-Design Skin Fittings are suitable for installation in all types of hull construction; steel,
aluminium, fibreglass - cored and solid, wooden sandwich.
Tru-Design Skin Fittings are also able to be used on caulked solid wood hulls – care should be
taken to only locate the skin fitting in the centre of any individual plank.
FLOW DIAMETER & HULL THICKNESS
Size Minimum I.D. Maximum Hull Thickness
½” BSP 12mm 28mm
¾” BSP 17mm 28mm
1” BSP 23mm 28mm
1¼” BSP 30mm 30mm
1½” BSP 36mm 30mm
2” BSP 48mm 40mm
DIMENSIONS
All dimensions in mm.
All dimensions nominal.
½” ¾” 1” 1¼” 1½” 2”
Doc: PIS - Skin Fittings 3.0.doc Page 3 of 4
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Page 4
PRODUCT
INFORMATION
INSTALLATION
Full installation instructions are supplied with the Skin Fitting.
It is recommended that all Skin Fittings are placed in a protected location to minimize the chance
of inadvertent damage.
A packer may be required to provide a flat surface on the inside of the hull.
Note: Do not use with tapered thread valves or fittings.
The thread type on all Tru-Design Skin Fittings is a British Standard Pipe Parallel thread (BSPP).
The thread is a mechanical fastening with sealing provided by thread tape. This method gives a
secure mechanical joint between Skin Fitting and connected components. A tapered thread
cannot provide this strong connection. Mixing tapered and parallel threads can result in damage to
either of the components.
Note: There is no need to tie Tru-Design Skin Fittings electrically together as there are no
corrosion or electrolysis problems as can be experienced when using bronze fittings.
SERVICING
As composite Skin Fittings are immune to corrosion, minimal servicing is required.
Skin fittings should be checked for secure fitting into the hull and to other fittings at regular
intervals. Upon hauling out, the exterior of the fitting should be checked for damage.
If fittings are removed, the old thread tape should be removed and replaced.
Tru-Design Plastics Ltd. accepts no responsibility for Products which are improperly installed or tampered with. Although the information presented in this product information sheet is believed to be
accurate and reliable, no responsibility for inaccuracies can be assumed by Tru-Design Plastics Ltd. This performance data is typical only and variations due to component manufacturing tolerances
are normal. Tru-Design Plastics Ltd. reserves the right at any time to change performance characteristics or specifications without prior notice.
Tru-Design Plastics Ltd, all rights reserved.
Doc: PIS - Skin Fittings 3.0.doc Page 4 of 4
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