Hydraulic connector is connected Sandblasting pipe The connection element between the pipeline and the sandblasting pipeline, or between the pipeline and the sandblasting pipeline element. The sandblasting pipe connector includes the sandblasting pipe connector for hose and the sandblasting pipe connector for hard pipe. Only the sandblasting pipe connector for hose is introduced here. One section of the sandblasting pipe connector is connected to the sandblasting pipeline (called the tail end), and the other end is connected to other elements (terminals), In order to ensure the compatibility of connection with other components and leak free sealing, the end of the sandblasting pipe joint needs to be designed in accordance with the general interface standard. The main function of the end is to ensure the long-term sealing of the connection between the joint and the hose.

The types and working principles of sand blasting pipe joints can be divided into the following types according to the form of interface:

1. O-ring end sealing hose connector

1. Hose connector 2. Oil port 3. O-ring 4. Connector 5. Nut 6. O-ring. When the nut 5 is screwed on the external thread of the connector body, with the increase of tightening torque, the hose connector and the end face of the connector body (part 4) contact and compress, and the O-ring on the end face of the connector 4 produces elastic deformation, fully contacts the end faces of part 6 and part 4 and generates pressure, which plays a sealing role.

Pay special attention during installation, and check the sealing ring before installation.

2. 24 ° cone sealing end hose connector

1. Hose connector 2. O-ring 3. Oil port 4. Connector 5. Nut. When the nut 5 is screwed with the external thread of the connector body (part 4), with the increase of tightening torque, the external cone surface of the hose connector and the internal cone surface of the connector body (part 4) contact and compress, and the O-ring of the external cone surface of the hose connector 1 produces elastic deformation, fully contacts the cone surface of part 6 and part 4 and generates greater pressure, playing a sealing role, Due to the leverage of the cone, the pressure between the cones is greater, and the sealing effect is theoretically better.

Pay special attention during installation, and check the sealing ring before installation.

3. Flange end hose connector

1) . Hose connector 2). Oil port, flange head, flange pressure plate 3) O-ring, the flange head of the hose connector is pressed on the oil port by the flange pressing plate. When the tightening torque of the bolt increases, the bolt produces a large pre tightening force. The bolt pre tightening force passes through the flange pressing plate, pressing the flange head tightly on the oil port. The O-ring (part 3) on the flange head is deformed when pressed, and the flange head end face of the hose connector (part 1) is fully contacted with the oil port face and generates pressure, It plays a sealing role. Because of the use of high-strength bolts, the pressure between the contact surfaces is very large, and the sealing effect is theoretically very good.

Pay special attention during installation. Check the end face O-ring before installation.

4. Stud end hose connector

The root of the joint thread is provided with an O-ring. When the joint is connected with the port through the thread, the O-ring fits with the end face of the oil port to play a sealing role.

5.37 ° flared end hose connector

1. Hose connector 2. Nut 3. Steel pipe 4. Sleeve. When the nut 2 is screwed with the external thread of the connector body (part 1), with the increase of tightening torque, the external cone surface of the hose connector and the internal cone surface of the steel pipe (part 3) are in contact and compressed. The cone surface of the hose connector 1. 3 is fully in contact and generates greater pressure, which plays a sealing role. Due to the leverage of the cone surface, the pressure between the cones is greater.

Sandblasting pipe In the process of joint selection, it is necessary to consider the large working pressure, working temperature, interface size, applicable pipe internal and external diameter size, convenience of installation, economy and other factors. The large working pressure of the connector shall not be lower than the high working pressure of the hose.