Heavy-duty waterlocks for high performance

Home Products Exhaust Systems Heavy-Duty waterlocks

NAVIDURIN® Heavy Duty Waterlocks are designed for marine applications where conventional exhaust components are pushed to their limits. Combining exceptional resistance to heat, pressure and mechanical loads, these waterlocks deliver reliable performance in demanding operating environments.

With temperature resistance up to 260°C and outstanding resistance to thermal deformation under pressure, NAVIDURIN® Heavy Duty Waterlocks are ideal for vessels that operate under continuous high loads. Their proven design offers excellent sound reduction, flexible installation options and extremely low back pressure, helping to optimise exhaust system performance.

Suitable for both recreational and professional marine applications, NAVIDURIN® Heavy Duty Waterlocks provide a durable and cost effective solution for commercial vessels, coastguard boats and other demanding marine environments.

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NAVIDURIN® HD waterlock / muffler type NLP, 65mm

NLP65HD

The NAVIDURIN® HD Waterlock combines exceptional strength, low back pressure and excellent sound reduction in a lightweight, heavy duty solution for demanding marine exhaust systems.

NAVIDURIN® waterlock high performance 127 in/out 152

HPW127152

Excellent mechanical properties. Heat-resistant up to 260°C with a capacity of 55 litres. For high-output engines.

NAVIDURIN® waterlock high performance 152 in/out

HPW152

The NAVIDURIN® Heavy Duty Waterlock combines exceptional heat resistance, low back pressure and outstanding durability, delivering reliable performance in the most demanding marine exhaust systems.

NAVIDURIN® waterlock high-performance 102 in/out

HPW102

The NAVIDURIN® Heavy Duty Waterlock combines exceptional heat resistance, low back pressure and outstanding durability, delivering reliable performance in the most demanding marine exhaust systems.

NAVIDURIN® waterlock high-performance 127 in/out

HPW127

The NAVIDURIN® Heavy Duty Waterlock combines exceptional heat resistance, low back pressure and outstanding durability for demanding marine exhaust applications.

NAVIDURIN® HD waterlock / muffler type NLP, 90mm, 10 litres, black

NLP90HD

The NAVIDURIN® Heavy Duty Waterlock combines exceptional heat resistance, low back pressure and lightweight durability for reliable performance in demanding marine exhaust systems.

NAVIDURIN® HD waterlock / muffler type NLP, 90mm, 10 litres, black

NLP75HD

The NAVIDURIN® Heavy Duty Waterlock delivers exceptional heat resistance, lightweight durability and reliable performance for demanding marine exhaust applications.

NAVIDURIN® HD waterlock / muffler type NLP, 60mm, 10 litres, black

NLP60HD

Combining durability, installation flexibility and proven exhaust performance, the NAVIDURIN® Heavy Duty Waterlock is built for demanding marine environments.

NAVIDURIN® HD waterlock / muffler type NLP, 50mm, 10 litres, black

NLP50SHD

Engineered for professional marine applications, the NAVIDURIN® Heavy Duty Waterlock delivers reliable operation under high thermal and mechanical loads.

NAVIDURIN® HD waterlock / muffler type NLP, 50mm, 4.5 litres, black

NLP50HD

Designed for extreme marine conditions, the NAVIDURIN® Heavy Duty Waterlock combines high strength, low back pressure and excellent sound reduction.

NAVIDURIN® HD waterlock / muffler type NLP, 45mm, 4.5 litres, black

NLP45HD

The NAVIDURIN® Heavy Duty Waterlock offers outstanding resistance to heat and pressure while ensuring efficient and reliable exhaust system performance.

NAVIDURIN® HD waterlock / muffler type NLP, 40mm, 4.5 litres, black

NLP40HD

Engineered for professional marine applications, the NAVIDURIN® Heavy Duty Waterlock delivers reliable operation under high thermal and mechanical loads.

Heavy-Duty waterlocks

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