Vetus Exhaust Systems
Vetus offer a comprehensive range of exhaust system components, including waterlocks, mufflers and goosenecks.
These are all suitable for wet exhaust systems and act to prevent water from running back along the system and into the engine. We recommend that all exhaust systems are fitted with a high temperature alarm in order to provide a warning of potential problems.
Installation with engine high
When an engine is installed relatively high compared to the vessel's waterline, the installation of the exhaust system may be done without modification to the engine, as long as the water injection point on the injection bend from the exhaust manifold is at least 15cm (6 inches) above the waterline.
The waterlock should be installed at the lowest point of the exhaust system (a minimum of 30cm from the injection point) in order to allow it to collect any water that is left in the exhaust system once the engine is switched off. Ideally, a gooseneck should be installed at the transom connector, otherwise the exhaust hose should be looped up as high as possible to prevent water from entering the boat in a following sea or due to engine suction. If required, a muffler may be fitted between the waterlock and the gooseneck.
Installation with engine low
If an engine is installed relatively low compared to the vessel's waterline, ie with the water injection point engine's exhaust less than leat 15cm (6 inches) above the waterline, then an airvent should be fitted to avoid syphoning.
As before, the waterlock should be installed at the lowest point of the exhaust system (a minimum of 30cm from the injection point). Again, a gooseneck should be installed at the transom connector, otherwise the exhaust hose should be looped up as high as possible to prevent water from entering the boat in a following sea or due to engine suction. If required, a muffler may be fitted between the waterlock and the gooseneck.
Single-stage waterlocks
A waterlock collects the cooling water present in the exhaust system when the engine has stopped, helping to prevent water ingress into the engine. The size of the waterlock should be determined by not only the size of the exhaust hose, but also by the length of the exhast system, hence Vetus offers waterlocks with extra capacity to suit installations with long exhaust runs.
| WLOCKLP |
Suitable for exhaust hose with 30mm internal diameter. Provided with a drain plug for winter storage.
Dimensions: 240mm long x 90mm wide x 180mm high.
Capacity: 2.3 litres.
Buy online: www.abcstore.co.uk |
30mm |
 |
| WLOCKLR |
For exhaust hose with internal diameters of 40mm, 45mm or 51mm. Provided with a plug for draining over winter. The inlet connection of this waterlock will rotate through 360 degrees, which greatly facilitates the installation of the exhuaust assembly.
Dimensions: 372mm long x 110mm wide x 211mm high.
Capacity: 4.3 litres.
Buy online: www.abcstore.co.uk |
40mm
45mm
51mm |
 |
| WLOCKLP |
For exhaust hose with internal diameters of 51mm, 60mm, 75mm or 90mm. Provided with a plug for draining over winter. The 50mm version is recommended for exhaust systems over 4m in length due to its extra capacity compared to the L50R model, above.
Dimensions: 530mm long x 138mm wide x 290mm high.
Capacity: 10.5 litres.
Buy online: www.abcstore.co.uk |
51mm
60mm
75mm
90mm |
|
| LSS |
For exhaust hose with internal diameters of 40mm, 45mm or 51mm. Provided with a plug for draining over winter. Especially designed for longer exhaust systems and with a lower profile for easy installation under floor. Features rotating inlet and outlet connectors for easy of fitting.
Dimensions: 430mm long x 152mm wide x 225mm high.
Capacity: 7.5 litres. |
40mm
45mm
51mm |
 |
| LSL |
For exhaust hose with internal diameters of 60mm, 75mm or 90mm. Provided with a plug for draining over winter. Designed for long, relatively straight exhaust runs, for example in sailing boats. Fixed inlet and outlet connectors.
Dimensions: 596mm long x 170mm wide x 310mm high.
Capacity: 16 litres. |
60mm
75mm
90mm |
 |
| LSG |
For exhaust hose with internal diameters of 60mm, 75mm or 90mm. Provided with a plug for draining over winter. Designed for long exhaust systems. Rotating inlet and outlet connectors for ease of connection and includes flapper check valve incorporated in inlet.
Dimensions: 578mm long x 170mm wide x 368mm high.
Capacity: 17 litres. |
60mm
75mm
90mm |
 |
Dual-stage vertical waterlocks
Vetus NLP and MG waterlocks are of dual stage construction, featuring upper and lower chambers with a horizontal partition plate and a riser tube through the centre. Compared with single stage waterlocks with one chamber, these waterlocks offer superior silencing of exhaust noise with minimal back pressure.
The top chamber may be rotated through 360 degrees, greatly simplifying installation of the exhaust system even in confined spaces as the hoses can be routed at any angle compared to each other.
| NLP |
Suitable for exhaust hose with 40mm, 45mm or 51mm internal diameter. Inlet and outlet connectors rotate through 360 degrees for ease of installation. Supplied with fixing straps and a drain plug for winter storage.
Dimensions: 165mm diameter x 254mm high x 385mm maximum length
Capacity: 4.5 litres.
Buy online: www.abcstore.co.uk |
40mm
45mm
51mm |
 |
| NLP |
Suitable for exhaust hose with 50mm, 60mm, 75mm or 90mm internal diameter. Inlet and outlet connectors rotate through 360 degrees for ease of installation. Supplied with fixing straps and a drain plug for winter storage.
Dimensions: 210mm diameter x 362mm high x 515mm maximum length
Capacity: 10 litres.
Buy online: www.abcstore.co.uk |
50mm
60mm
75mm
90mm |
 |
| MGP |
Suitable for exhaust hose with 90mm, 102mm or 127mm internal diameter. The inlet connection is angled at 45 degrees up, the outlet connection is horizontal. The outlet connector must be installed a minimum of 40cm above the waterline.
Dimensions: 270mm diameter x 450mm high
Capacity: 23 litres. |
90mm
102mm
102/127mm
127mm |
 |
| MGS |
Suitable for exhaust hose with 127mm or 152mm internal diameter. The inlet connection is angled at 45 degrees up, the outlet connection is horizontal. The outlet connector must be installed a minimum of 40cm above the waterline.
Dimensions: 270mm diameter x 450mm high
Capacity: 75 litres. |
127mm
127/152mm
152mm |
 |
| MGL |
Suitable for exhaust hoses with 152mm or 203mm internal diameter. The inlet connection is angled at 45 degrees up, the outlet connection is horizontal. The outlet connector must be installed a minimum of 40cm above the waterline.
Dimensions: 500mm diameter x 750mm high
Capacity: 130 litres. |
152/203mm
203mm
203/250mm |
 |
Other items
We are able to supply the entire range of Vetus components to complete an exhaust installation. Several different models of transom connector, including a rubber version intended for direct connection to the gooseneck to optimise installation space at the transom. To complete the job, an exhaust temperature alarm may also be fitted, that will provide an alert if an overheat problem occurs.
ASDV
ASDH
AIRVENT
AIRVENTH |
This anti-syphon valve can be fitted into the water injection pipe of the engine before it goes into the injection bend. It will provide a syphon break that will prevent cooling water from entering the engine and is suitable for installations when the engine is installed less than 15cm above the waterline. The airvent is available either with a valve or with a hose to allow a bleed-off outside the hull.
Dimensions (ASD): 133mm high x 96mm wide x 68mm deep
Dimensions (AIRVENT): 162mm high x 98mm wide x 50mm deep
Suitable for water hoses with inside diameters 13mm, 19mm, 25mm or 32mm.
Buy online: www.abcstore.co.uk |
- |
 |
| TRCPV |
Transom connector made of plastic, incorporating a rubber flapper valve. The exhaust hose may be connected directly to the transom connector.
Buy online: www.abcstore.co.uk |
40mm
45mm
50mm
60mm
75mm
90mm |
|
| TC |
Transom connector made of plastic, incorporating a rubber flapper valve. Fitted with a high-gloss steel band around the outlet. The exhaust hose may be connected directly to the transom connector. |
90mm
102mm
127mm
152mm |
 |
| TRCSV |
Transom connector made of stainless steel, incorporating a rubber flapper valve. The exhaust hose may be connected directly to the transom connector.
Buy online: www.abcstore.co.uk |
40mm
45mm
51mm
60mm
76mm
90mm
102mm
127mm
152mm |
 |
| TRCR |
Transom connector made of rubber, with a high-gloss cover on the exterior. A Vetus gooseneck or muffler may be connected directly to the transom connector, maximising space at the transom. If exhaust hose is to be connected directly to the transom connector, then a plastic hose connector will be required. |
40mm
45mm
51mm
60mm
76/90mm |
 |
| MIXER |
In some installations, the exhaust muffler must be positioned so closely to the water injection manifold that the cooling water may not mix properly with the exhaust gasses. The Vetus exhaust mixer will improve the water/gas mixing and help prevent the muffler from becoming overheated. |
90mm
100mm
125mm
150mm |
 |
| SLANG |
Thanks to increased spiral reinforcements and a more supple type of rubber, Vetus exhaust hoses are now even stronger, as well as more flexible. In order to reduce back pressure, the inside of all Vetus exhaust hose is completely smooth. It is temperature-resiatant between -30 and +100 degrees centigrade, with a brief peak temperature of 115 degrees centigrade. These hoses are Lloyd's approved and satisfy the SAE J2006 R2 directive.
Internal / External / Minimum bend radius
30mm / 38mm / 45mm
40mm / 48mm / 60mm
45mm / 53mm / 68mm
51mm / 59mm / 77mm
57mm / 65mm / 86mm
60mm / 73mm / 90mm
65mm / 73mm / 98mm
76mm / 84mm / 114mm
90mm / 98mm / 135mm
102mm / 110mm / 153mm
110mm / 120mm / 165mm
127mm / 137mm / 191mm
152mm / 163mm / 228mm
203mm / 218mm / 406mm
254mm / 270mm / 508mm
303mm / 323mm / 606mm
Buy online: www.abcstore.co.uk
|
- |
 |
SLVBR
SLVBG |
Hose connectors, made of synthetic material are available as straight connectors or with a 60 degree bend for exhaust hose with internat diameters from 40mm to 150mm inclusive. |
- |
 |
| HHCS |
Stainless steel heavy-duty hose clamps are available for all sizes of Vetus exhaust hose. |
- |
 |
Note: all specifications are subject to change without notice. Please contact us for details of prices and any further information, full details are available in the current Vetus catalogue which you can request online.