Connector Plastic 19 mm 3/4"

Function and technical context

This 19 mm (3/4") plastic/polyamide connector acts as a hose connector in seawater or freshwater cooling systems in marine engines, allowing two sections of hose of the same diameter to be joined with reliable sealing. Its polyamide manufacture gives it resistance to marine corrosion, hydrocarbons and thermal variations typical of the cooling circuit, an advantage that conventional metal connectors cannot always offer in saltwater environments. A connector in poor condition can cause leaks in the cooling circuit, with the consequent loss of water flow, engine overheating and forced stops while sailing. Its correct installation guarantees the integrity of the water circuit and is essential in any repair or replacement of cooling system hoses.

When to replace this part?

The most common symptoms of a deteriorated connection are the appearance of moisture or dripping at the hose joints, hoses that loosen easily or loss of pressure in the refrigeration circuit detected during tune-up. This type of polyamide connector can become brittle or crack over the years due to repeated thermal cycling and continued exposure to salt water, so it should be inspected during each seasonal maintenance. Replacing it preventively when renewing the cooling hoses avoids breakdowns due to overheating that can be very expensive to repair away from the port.

Compatibility