Made from specially blended NAVIDURIN® composite, which is heat resistant up to 260°C.

While the NLP airlock design is already well known for its soundproofing characteristics, versatile installation options and extremely low back pressure, it now adds mechanical properties capable of meeting any challenge and placing it in a unique position on the market.

The thermal resistance to deformation under pressure is 250°C, almost double that of standard GRP materials, while the tensile and flexural strength are the same. What's more, all these advantages are available at a weight almost half that of the competition.

Features a 360° rotating body and endless connection options. Comes with floor and bulkhead mounting brackets and drain plugs for winter storage.

Suitable for 40mm exhaust system.

Features :

Capacity (liters): 4.5.

Length (mm): 385.

Width (mm): 165.

Height (mm): 254.

Airlock position: Vertical.

% Noise Reduction: 35.

Exhaust plug for water-injected exhaust systems, with rotating top. Made of corrosion-resistant synthetic materials. Excellent noise reduction.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 75.

Water inlet pipe connection diameter (mm): 152.

Outlet pipe connection diameter (mm): 152.

Length (mm): 707.

Width (mm): 400.

Height (mm): 700.

Airlock position: Vertical.

% Noise Reduction: 25.

Exhaust plug for water-injected exhaust systems, with rotating top. Made of corrosion-resistant synthetic materials. Excellent noise reduction.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 75.

Water inlet pipe connection diameter (mm): 127.

Outlet pipe connection diameter (mm): 152.

Length (mm): 707.

Width (mm): 400.

Height (mm): 700.

Airlock position: Vertical.

% Noise Reduction: 25.

Exhaust plug for water-injected exhaust systems, with rotating top. Made of corrosion-resistant synthetic materials. Excellent noise reduction.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 75.

Water inlet pipe connection diameter (mm): 127.

Outlet pipe connection diameter (mm): 127.

Length (mm): 707.

Width (mm): 400.

Height (mm): 700.

Airlock position: Vertical.

% Noise Reduction: 25.

Exhaust plug for water-injected exhaust systems, with rotating top. Made of corrosion-resistant synthetic materials. Excellent noise reduction.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 23.

Water inlet pipe connection diameter (mm): 90.

Outlet pipe connection diameter (mm): 90.

Length (mm): 540.

Width (mm): 270.

Height (mm): 450.

Airlock position: Vertical.

% Noise Reduction: 25.

Special waterlocks for large boats type MG.

Excellent noise reduction, minimal back pressure.

This type of water lock is designed for modern, high-performance boats with one or two large engines that have little space to spare in the engine room. The outlet connection on top can rotate 360°, and the inlet connection is angled upwards by 45°. The MG type can only be installed in water-injected exhaust systems. Its body is made entirely of synthetic materials, therefore not susceptible to corrosion or galvanic action.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 102 mm

• Capacities of 23 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

• Capacity: 23 L

• Diameter d: 127 mm

• Diameter D: 127 mm

• Diameter A: 270 mm

• Diameter B: 450 mm

Exhaust plug for water-injected exhaust systems, with rotating top. Made of corrosion-resistant synthetic materials. Excellent noise reduction.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 25.

Water inlet pipe connection diameter (mm): 102.

Outlet pipe connection diameter (mm): 127.

Length (mm): 540.

Width (mm): 270.

Height (mm): 450.

Airlock position: Vertical.

% Noise Reduction: 25.

Waterlock designed for modern high performance boats with one or two large engines that have limited space in the engine room.

The outlet connection at the top can be rotated 360º and the inlet connection is at a 45º upward angle. The MG type can only be installed in water-injected exhaust systems. Its body is made entirely of synthetic materials, therefore insensitive to corrosion or galvanic action.

To optimize noise reduction, flexible supports for MG and HPW watercoks can be used.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 130.

Water inlet pipe connection diameter (mm): 203.

Outlet pipe connection diameter (mm): 203.

Length (mm): 890.

Width (mm): 500.

Height (mm): 750.

Airlock position: Vertical.

% Noise Reduction: 25.

Waterlock designed for modern high performance boats with one or two large engines that have limited space in the engine room.

The outlet connection at the top can be rotated 360º and the inlet connection is at a 45º upward angle. The MG type can only be installed in water-injected exhaust systems. Its body is made entirely of synthetic materials, therefore insensitive to corrosion or galvanic action.

To optimize noise reduction, flexible supports for MG and HPW watercoks can be used.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 130.

Water inlet pipe connection diameter (mm): 203.

Outlet pipe connection diameter (mm): 250.

Length (mm): 890.

Width (mm): 500.

Height (mm): 750.

Airlock position: Vertical.

% Noise Reduction: 25.

Special waterlocks for large boats type MG.

Excellent noise reduction, minimal back pressure.

This type of water lock is designed for modern, high-performance boats with one or two large engines that have little space to spare in the engine room. The outlet connection on top can rotate 360°, and the inlet connection is angled upwards by 45°. The MG type can only be installed in water-injected exhaust systems. Its body is made entirely of synthetic materials, therefore not susceptible to corrosion or galvanic action.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 102 mm

• Capacities of 23 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

• Capacity: 23 L

• Diameter d: 102 mm

• Diameter D: 102 mm

• Diameter A: 270 mm

• Diameter B: 450 mm

Waterlock designed for modern high performance boats with one or two large engines that have limited space in the engine room.

The outlet connection at the top can be rotated 360º and the inlet connection is at a 45º upward angle. The MG type can only be installed in water-injected exhaust systems. Its body is made entirely of synthetic materials, therefore insensitive to corrosion or galvanic action.

To optimize noise reduction, flexible supports for MG and HPW watercoks can be used.

Features :

• Excellent sound reduction

• Minimal back pressure

• Drain plug for winter storage

• Suitable for internal pipe diameters Ø 90, 102, 127, 152, 209 or 250 mm

• Capacities of 23, 75 or 130 liters

• Supplied with AISI 316 stainless steel clamping bands

• M12 thread purge

• Optional temperature sensor

Technical characteristics:

Capacity (liters): 130.

Water inlet pipe connection diameter (mm): 152.

Outlet pipe connection diameter (mm): 203.

Length (mm): 890.

Width (mm): 500.

Height (mm): 750.

Airlock position: Vertical.

% Noise Reduction: 25.

High silence, minimal back pressure

Our NLP waterlocks feature a two-stage design with upper and lower chambers featuring a horizontal separator plate and a rising tube through the center. Exhaust system installation, even in confined engine spaces, is greatly simplified thanks to the 360° rotating chamber and inlet and outlet connectors. For optimal exhaust noise silencing, you can also use a VETUS silencer and gooseneck after the waterlock.

Capacity: 10L

A: 515mm

B: 362mm

C: 210mm

D: 90mm

Comes with 2 fixing straps.

High silence, minimal back pressure

Our NLP waterlocks feature a two-stage design with upper and lower chambers featuring a horizontal separator plate and a rising tube through the center. Exhaust system installation, even in confined engine spaces, is greatly simplified thanks to the 360° rotating chamber and inlet and outlet connectors. For optimal exhaust noise silencing, you can also use a VETUS silencer and gooseneck after the waterlock.

Capacity: 10L

A: 515mm

B: 362mm

C: 210mm

D: 65mm

Comes with 2 fixing straps.

High silence, minimal back pressure

Our NLP waterlocks feature a two-stage design with upper and lower chambers featuring a horizontal separator plate and a rising tube through the center. Exhaust system installation, even in confined engine spaces, is greatly simplified thanks to the 360° rotating chamber and inlet and outlet connectors. For optimal exhaust noise silencing, you can also use a VETUS silencer and gooseneck after the waterlock.

Capacity: 10L

A: 515mm

B: 362mm

C: 210mm

D: 50mm

Comes with 2 fixing straps.

High silence, minimal back pressure

Our NLP waterlocks feature a two-stage design with upper and lower chambers featuring a horizontal separator plate and a rising tube through the center. Exhaust system installation, even in confined engine spaces, is greatly simplified thanks to the 360° rotating chamber and inlet and outlet connectors. For optimal exhaust noise silencing, you can also use a VETUS silencer and gooseneck after the waterlock.

Capacity: 4.5L

A: 385mm

B: 254mm

C: 165mm

D: 50mm

Comes with 2 fixing straps.

High silence, minimal back pressure

Our NLP waterlocks feature a two-stage design with upper and lower chambers featuring a horizontal separator plate and a rising tube through the center. Exhaust system installation, even in confined engine spaces, is greatly simplified thanks to the 360° rotating chamber and inlet and outlet connectors. For optimal exhaust noise silencing, you can also use a VETUS silencer and gooseneck after the waterlock.

Capacity: 4.5L

A: 385mm

B: 254mm

C: 165mm

D: 45mm

Comes with 2 fixing straps.

High silence, minimal back pressure

Our NLP waterlocks feature a two-stage design with upper and lower chambers featuring a horizontal separator plate and a rising tube through the center. Exhaust system installation, even in confined engine spaces, is greatly simplified thanks to the 360° rotating chamber and inlet and outlet connectors. For optimal exhaust noise silencing, you can also use a VETUS silencer and gooseneck after the waterlock.

Capacity: 10L

A: 515mm

B: 362mm

C: 210mm

D: 60mm

Comes with 2 fixing straps.

High silence, minimal back pressure

Our NLP waterlocks feature a two-stage design with upper and lower chambers featuring a horizontal separator plate and a rising tube through the center. Exhaust system installation, even in confined engine spaces, is greatly simplified thanks to the 360° rotating chamber and inlet and outlet connectors. For optimal exhaust noise silencing, you can also use a VETUS silencer and gooseneck after the waterlock.

Capacity: 4.5L

A: 385mm

B: 254mm

C: 165mm

D: 40mm

Comes with 2 fixing straps.

Manufactured from the specially blended NAVIDURIN® composite, heat-resistant up to 260°C. The same applies to thermal resistance to deformation under pressure. The HPW series is ideal for applications where the system is put to the test, such as commercial vessels or coast guards. This ability to handle extreme conditions, combined with the rotating bodies and pipe fittings, makes the HPW series a cost-effective alternative to expensive, high-end custom solutions.

It has a 360º rotating body and allows for infinite connection of hose fittings. It comes with floor mounting brackets. Large capacity water lifter provides complete safety for your engine. Excellent noise attenuation with minimal back pressure.

Features :

Capacity (liters): 55.

Water inlet pipe connection diameter (mm): 152.

Outlet pipe connection diameter (mm): 152.

Length (mm): 950.

Width (mm): 440.

Height (mm): 648.

Airlock position: Vertical.

% Noise Reduction: 30.

Manufactured from the specially blended NAVIDURIN® composite, heat-resistant up to 260°C. The same applies to thermal resistance to deformation under pressure. The HPW series is ideal for applications where the system is put to the test, such as commercial vessels or coast guards. This ability to handle extreme conditions, combined with the rotating bodies and pipe fittings, makes the HPW series a cost-effective alternative to expensive, high-end custom solutions.

It has a 360º rotating body and allows for infinite connection of hose fittings. It comes with floor mounting brackets. Large capacity water lifter provides complete safety for your engine. Excellent noise attenuation with minimal back pressure.

Features :

Capacity (liters): 55.

Water inlet pipe connection diameter (mm): 127.

Outlet pipe connection diameter (mm): 152.

Length (mm): 950.

Width (mm): 440.

Height (mm): 648.

Airlock position: Vertical.

% Noise Reduction: 30.

Manufactured from the specially blended NAVIDURIN® composite, heat-resistant up to 260°C. The same applies to thermal resistance to deformation under pressure. The HPW series is ideal for applications where the system is put to the test, such as commercial vessels or coast guards. This ability to handle extreme conditions, combined with the rotating bodies and pipe fittings, makes the HPW series a cost-effective alternative to expensive, high-end custom solutions.

It has a 360º rotating body and allows for infinite connection of hose fittings. It comes with floor mounting brackets. Large capacity water lifter provides complete safety for your engine. Excellent noise attenuation with minimal back pressure.

Features :

Capacity (liters): 55.

Water inlet pipe connection diameter (mm): 127.

Outlet pipe connection diameter (mm): 127.

Length (mm): 950.

Width (mm): 440.

Height (mm): 648.

Airlock position: Vertical.

% Noise Reduction: 30.