ID
975689
$ 162.99
1-2 weeks delivery time
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The Vetus ASDH Anti-Syphon Device is designed for hoses with internal diameters of 13, 19, 25, and 32 mm and includes a skin fitting, hose clamps, and 2 meters of breather hose. With dimensions of 96 × 68 × 133 mm and a 360° rotating air bleed connection, it provides constant ventilation to prevent vacuum formation in marine engine cooling and toilet systems.
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Vetus ASDH Anti-Syphon Device with Hose and Skin Fitting for Ø13–32 mm Marine Systems
The Vetus ASDH anti-syphon device is designed to prevent vacuum formation and backflow in marine cooling systems and marine toilets. It is compatible with hoses of Ø13 mm, Ø19 mm, Ø25 mm, and Ø32 mm and comes complete with a skin fitting, hose clamps, and a 2-meter breather hose for quick installation. The unit features a 360° rotating air bleed connection for flexible hose routing and is fully interchangeable with Vetus AIRVENT models using identical fixing hole centers.
Main Features
- Compatible with Ø13 / Ø19 / Ø25 / Ø32 mm internal hose diameters.
- Constant ventilation design prevents vacuum formation at all times.
- 360° rotating air bleed connection for maximum installation flexibility.
- Interchangeable with AIRVENT series using the same mounting hole centers.
- Valve maintenance possible without removing the device; no tools required.
- Supplied complete with skin fitting, hose clamps, and 2 m of breather hose.
- Spare valve set (5 pieces) available as a replacement accessory.
Applications
- Marine Engines: Prevents vacuum formation when the engine exhaust outlet is less than 15 cm above the waterline, stopping seawater from being drawn into the engine after shutdown.
- Marine Toilets: Prevents siphoning and uncontrolled seawater ingress into toilet systems.
- General Cooling Water Circuits: Ensures continuous safe venting of water injection lines.
Technical Specifications
Function Anti-syphon device with hose and skin fitting Hose Compatibility Ø13 / Ø19 / Ø25 / Ø32 mm Length 96 mm Width 68 mm Height 133 mm Air Bleed Connection Rotates 360° Included Components Skin fitting, hose clamps, 2 m breather hose Valve Servicing No tools required; accessible without removing the unit
Installation Notes
- Install vertically for optimal function of the constant-venting valve.
- Ensure the breather hose is routed to a safe discharge point via the supplied skin fitting.
- Use the rotating air bleed connector to achieve the most efficient hose alignment.
- Regular valve inspection is recommended; replacement valves are available separately.
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