Crown Flanged Hydraulic Inlet Fitting – HF-799

Crown builds this flanged hydraulic inlet fitting for its lift truck line, where it connects the hydraulic line to the inlet side of a pump or valve through a bolt-down flange rather than a threaded coupling. The flange face seats against its mating surface and clamps down with fasteners, spreading the load and holding a leak-tight seal on the low-pressure suction side, where a flanged connection resists loosening under vibration better than a threaded joint.

As the fitting Crown specifies for this connection, it matches the inlet porting on Crown material handling equipment, so the flange pattern and passage are built to the system it feeds. A hydraulic inlet fitting is a sealing joint at heart, and the seal is what fails, so it goes in during the same service that opens the line. Match the flange pattern and bore to the port it mounts against, since the fitting has to seal flat across the full mating face.