TruDesign Nylon Composite Ball Valve: BSP

Only %1 left
As low as £37.96 Regular Price £39.95

TruDesign logoTruDesign ball valves are immune to corrosion and electrolysis.

Delivery & Return

Payment Secured

Safe with Our Payment

Designed and made in New Zealand for use in marine applications above and below the waterline, TruDesign Ball Valves are IMCI and Bureau Veritas approved to ISO standard 9093-2, and are ideal for seacock applications.

The body of the Ball Valve is manufactured in glass reinforced nylon composite with high impact and tensile strength resulting in a light weight unit, free from corrosion and electrolysis issues. The ball and sealing rings utilise a PTFE polymer to ensure a smooth action, and continuous ease of operation over many years. The Ball Valve can be locked in the closed position for use on toilet waste outlets.

  • Manufactured from a glass reinforced nylon composite - High strength and light weight
  • Immune to corrosion and electrolysis - Long life with no concerns over decreased performance due to corrosion
  • Chemical resistant - Impervious to diesel, petrol and antifouling paints
  • UV resistant - Will not break down with ultraviolet light or discolour from the sun
  • Large operating temperature range (-20° to 80°C)
  • Position Monitored - Able to be used as an engine interlock. Monitoring of multiple Ball Valve positions through a Panel Display
  • Standards approved through IMCI & Bureau Veritas to ISO standard 9093-2


Q: Do TruDesign Ball Valves require lubrication ?
A: No. The TruDesign ball valves are manufactured with a Teflon impregnated Ball running on Teflon rings, so no lubrication is required. It is good practice to turn the valve handle every few months to keep the movement free but there have been several examples where TruDesign Ball Valve handles have not been turned for over 12 months and they still function fine.

Q: Can you fit TruDesign Ball Valves to bronze or Stainless skin fittings ?
A: Yes. TruDesign Composite ball valves can be screwed onto an approved bronze skin fitting.
First the thread on the bronze skin fitting must be identified to match the TruDesign Ball Valve (either BSP or NPS). In the case of an old existing bronze skin fitting you must check that the bronze is not pitted or corroded from electrolysis and is in good mechanical condition.

Q: Can I screw a tapered fitting into a TruDesign Ball Valve ?
A: NOT RECOMMENDED! The TruDesign Ball Valves have parallel threads and only fittings with parallel threads should be screwed into them. This is a very important issue as parallel threads allow for maximum engagement of the two threads and this is required for maximum strength and sealing. TruDesign have conducted many hours of load testing to gain IMCI, Bureau Veritas and ABYC complince - which will not be covered if fittings with tapered threads are used.

Q: What sealant can I use on TruDesign threads ?
A: Thread sealing options:

  • Loctite 55 Pipe Sealing Cord (Recommended as it allows for re-positioning post assembly)
  • Clessetite Thread Sealant Clessetite forms an elastic cured film between threads, without stress to the fitting, curing to form a perfect seal. Easy dismantling even after years of use – due to the liquid PTFE content.
  • PTFE Thread Tape Note: Joints made with normal PTFE tape continue to be under stress so to ensure tightness, to the detriment of the fitting which can result in splitting and cracks appearing.
  • Sikaflex 291i (Use only if dis-assembly is never required)

How to retrofit Skin Fittings (Thru Hull Fittings) from TruDesign on Vimeo.

BSP Thread specifications
Write Your Own Review
You're reviewing:TruDesign Nylon Composite Ball Valve: BSP
Where products are in stock you should expect delivery within 3 working days. For next day delivery the cut-off time is 2pm. Orders received after 2pm will be dispatched the following day for delivery the day after.
Delivery for Chart Art is 10 working days.
Returns during the Christmas period. We will accept the return of any product (excluding custom made products such as rope, rigging, sails or canvas work, or audio or video recordings or computer software which has been unsealed by you) up to January 31 2015. Please download our returns form (PDF).
If goods are not in stock and delivery is going to be longer than 30 days Storrar Marine Ltd will contact you to discuss options. Storrar Marine Ltd will not be liable for any loss or damage suffered by you through any reasonable or unavoidable delay in delivery. We charge strictly at cost for delivery, however for orders over £100, delivery is free to UK addresses.* Free delivery will be applied to the cart at the checkout payment stage (if applicable).
If delivery is to the UK mainland, excluding the Scottish Highlands, charges are
<1kg £4.99
>1 <2 £6.99
>2 <10 £7.99
>10 <20 £9.99
>20 <30 £15.99
>30 <40 £39.99
Oversize items £59.99
Flares £18.99
*Free UK delivery is restricted to England, Wales and Lowland Scotland. It does not include Northern Scotland, or Islands or Northern Ireland. Restricted to maximum 30kg and 1.5m in length, it does not apply to bulky products; dinghies, outboards, or hazardous products; liferafts, or pyrotechnics (Flares). Free delivery is for a single complete shipment of an order.
Extra charges apply for next day deliveries and Saturday deliveries, and deliveries to Highlands, Islands and Northern Ireland. If you are fortunate enough to be in the Channel Islands, please use Jersey or Guernsey as the country to get the ex-VAT figures.
Small, but valuable items such as Electronic Charts are charged at the £6.99 rate as we usually send by courier so they can be tracked. Rolled up Admiralty charts are £4.99, but Admiralty folios are packed flat and too large to go by post and are £6.99.
Delivery charges may be changed without notice. Any overcharge of delivery cost will be refunded.
We cannot predict the cost to ship hazardous materials outside of UK. If your purchase includes a gas inflating lifejacket we can send it overseas only by first removing the gas bottle. You will have to find a local source to replace this bottle for the lifejacket to function. We cannot send re-arm kits overseas.
We cannot send other hazardous goods including liferafts, paint and antifouling overseas without first getting a special delivery quotation. After all these hurdles we put up, please do not be alarmed - if you need a liferaft delivered to the Baltic, the Mediterranean, the Caribbean, simply contact us for a quote. You can be confident our delivered price will still be better than local sourcing.
For delivery outside the EC, you must observe and comply with all applicable regulations and legislation, including obtaining all necessary customs, import or other permits to purchase goods from our site. You will be responsible for payment of any import duties and taxes. The importation or exportation of certain types of goods to you may be prohibited by certain national laws. Storrar Marine Ltd make no representation and accept no liability in respect of the export or import of the goods you purchase.
The majority of our deliveries need to be signed for, therefore we would recommend using a delivery address where somebody will be around to do this during normal working hours. ie your office or place of work.
TruDesign Nylon Composite Ball Valve: BSP