NYLON 90° 3/4 /19 THROUGH HELMET

Function and technical context

The nylon thru-hull with 90º elbow is a conduction element that allows pipes or hoses for cooling, bilge or hydraulic systems to be diverted through the hull of the boat with a straight change of direction that avoids the radius of curvature in areas of restricted space. The 90º angular geometry is essential when the installation requires a sudden turn at the exit or entrance of the hull, maintaining the tightness and avoiding mechanical stress on the hose section. Being made of technical nylon, it offers high resistance to marine corrosion, both in salt water and fresh water, and withstands the usual additives present in refrigeration circuits without degradation. Its correct installation is critical to ensure that the seal with the hull does not give way, since any leak would compromise the buoyancy of the boat.

When to replace this part?

The most obvious symptoms of deterioration in a nylon thru-hull are the appearance of visible microcracks in the body of the accessory, looseness or play in the connection with the hose, and the presence of moisture or leakage around the point of passage through the hull. It is recommended to visually inspect this component during each seasonal maintenance, paying special attention to the aging of the material due to prolonged exposure to ultraviolet rays and engine thermal cycles. Replacing the thru-hull preventively at the slightest sign of fragility or deformation prevents serious breakdowns in navigation, where water ingress through the hull can become a real emergency.