End Fittings

End fittings are critical components in gas lift cylinders designed to provide secure attachment points at both ends of the cylinder barrel. They serve multiple functions including: creating a pressure-tight seal to contain compressed gas, providing threaded or flanged connections for mounting to external structures, incorporating ports for gas inlet/outlet, and housing sealing elements like O-rings or gaskets. These fittings must withstand cyclic pressure loads, mechanical stresses, and environmental factors while maintaining precise dimensional tolerances for proper cylinder operation.

End fittings operate by creating a mechanical interface between the cylinder barrel and external connections. The fitting's design ensures proper alignment and sealing through precision machining of mating surfaces. When installed, the fitting compresses sealing elements against the cylinder barrel, creating a pressure-tight barrier. Threaded or bolted connections provide mechanical strength, while internal passages allow controlled gas flow into and out of the cylinder chamber during operation.