Thru-hull fitting and manufacturing method

摘要

A method of manufacturing a marine thru-hull fitting from a single stock material to fit a variety of different sized boat hulls is disclosed. A variety of differently-sized thru-hulls can therefore be formed from the same stock item, reducing the amount of inventory manufacturers are required to maintain.

主权项

1. A method of manufacturing a thru-hull fitting comprising:
flaring a first axial end of a pipe to form a flare having an outer flare diameter; pressing a first area of the pipe in a radial direction relative to the pipe to form a first flat; forming a thread in at least a portion of the pipe; and threadably coupling a one-way valve to a second axial end of the pipe, wherein the one-way valve comprises:
a body having first and second body ends and body inner and outer diameters extending in the radial direction;first and second guides disposed within the body;a shaft adapted to be movably coupled to the first and second guides; anda plug having a plug diameter adapted to substantially impair a flow of liquid when the plug diameter is radially aligned with the body inner diameter, thereby establishing a closed position, the plug being coupled to the shaft and biased toward the closed position.