1. maintenance

Hose shall not be dragged on sharp or rough surface, and shall not be hammered, cut, modified or rolled by vehicles. When transporting heavy straight pipes, especially when lifting, appropriate protective measures shall be taken.

2. Sealing test

After the metal joint is installed, hydraulic test shall be carried out (the test pressure shall comply with the corresponding data) to ensure that the metal joint and hose are free of leakage and looseness.

If there is no existing standard test specification, the pressure test shall comply with the data provided by the hose manufacturer.

3. Electrostatic discharge

The installation of hose with electrostatic discharge function shall be in accordance with the manufacturer's installation specifications. After the installation of metal interface, corresponding test shall be conducted. If the hose can only withstand low resistance, use a path tester to test or insulate the controller.

4. Fixing device

Safety measures shall be taken for the hose on the fixed device. The safety measures shall not affect the normal deformation caused by the stress of the hose, including (length, diameter, bending, etc.). If the hose needs to bear special mechanical force, pressure, negative pressure or geometric deformation, please consult the manufacturer.

5. Moving parts

Hoses installed on moving parts shall be free from impact, blockage, wear and abnormal bending, folding, dragging or twisting due to movement.

6. Reference information

In addition to the marking, if you want to add reference information to the hose, select the appropriate tape. In addition, paint and coating shall not be used. The protective film on the outer layer of the hose and the paint solution will have a chemical effect.

7. maintenance

Always carry out basic maintenance on the hose as required to ensure the performance of the hose. It is necessary to pay attention to some specific phenomena of metal joints and reaction hoses polluted, such as normal aging, erosion caused by improper use, and unexpected situations during maintenance.

Special attention should be paid to the following phenomena:

-Cracks, scratches, fractures, breaks, etc. in the protective layer will cause the internal structure to be exposed

- leakage

If the above conditions occur, replace the hose. In some specific use environment, expiration date shall be indicated to ensure safe use. The date is marked on the hose,

Stop using the hose immediately even if it has not failed.

8. repair

Repair of hoses is generally not recommended. In case of repair under special circumstances, the repair opinions of the manufacturer shall be strictly followed. Pressure test is required after repair. If one end of the hose is polluted due to the incision, and the rest of the hose still meets the requirements of food production, the contaminated part can be removed for repair.