What are the types of hydraulic hose couplings and how they work

Hydraulic hose connector are connecting components between hydraulic hoses and hydraulic hoses, or between hoses and hydraulic components. Do you know how many types of hydraulic hose connector and how they work?

One end of the hydraulic hose connector is connected to the hydraulic hose (called the tail end), and the other end is connected to other components (terminals). In order to ensure compatibility and leak-free sealing with other components, the terminal of the hydraulic hose connector needs to follow a common interface standard When designing, the main function of the tail end is to ensure the long-term sealing of the connection between the joint and the hose.

The main types of hydraulic hose joints:

1.?O-Ring Face Seal Hose Couplings

When the nut of the internal thread is screwed with the external thread, as the tightening torque increases, the hose joint plane and the end surface of the external thread of the Oring contact and are compressed, the O-ring is elastically deformed, and the end surface of the internal and external threads is fully Contact and generate pressure, play a sealing role.

Special attention should be paid during installation, and the sealing ring shall be checked before installation.

2.?24° cone sealing end hose connector

When the nut of the internal thread is screwed with the external thread, with the increase of the tightening torque, the outer cone surface of the hose connector and the inner cone surface of the outer thread are in contact and compressed, and the O-ring on the outer cone surface of the hose connector Produce elastic deformation, fully contact with the cone surface of the external thread and generate greater pressure, which plays a sealing role. Due to the leverage of the cone surface, the pressure between the cone surfaces is greater, and the sealing effect is theoretically better.

Special attention is required during installation, check the sealing ring before installation

3.?Flange end hose connector

The flange head of the hose joint is clamped on the oil port by the flange. When the bolt tightening torque increases, the bolt produces a large pre-tightening force. The bolt pre-tightening force is increased by the flange, and the flange head is pressed tightly on the The oil port and the O-ring on the flange head are deformed under pressure. The end face of the flange head of the hose connector and the oil port surface are fully contacted and the pressure generated plays a sealing role. Due to the use of high-strength bolts, the contact surface The pressure is very high, and the sealing effect is theoretically very good.

Special attention must be paid during installation. Check the O-ring on the end face before installation.

4.?37° Flared End Hose Connector

When the nut of the internal thread is screwed with the external thread of the joint body, with the increase of the tightening torque, the cone surface of the internal thread joint of the hose and the cone surface of the external thread are in contact and compressed, and the cone surface of the hose connection is fully contacted and compressed. Generates a greater pressure and plays a role of sealing. Due to the leverage of the cone surface, the pressure between the cone surfaces is greater.

5.?60 degree cone end hose connector

What other types of hydraulic hose couplings do you know? Welcome to enlighten.

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