High-pressure hoses are made of high-pressure rubber using a special process, capable of withstanding 150 kPa pressure. The inner rubber core is made of corrosion-resistant and wear-resistant rubber. High-pressure hoses are generally made of PE or PVC. The hose diameter is generally 2-8 mm. Different diameters and structures can be manufactured according to user requirements.
- Before use, check if the rubber layer is damaged.
If damaged, repair or replace it promptly. After use, the rubber layer should be maintained to ensure its integrity and prevent further damage.
- During transportation, the rubber hose should be kept intact and should not be bent or deformed. It should be replaced within 3 hours to avoid inner layer wear.
When installing high-pressure hoses, tools must be used to open the hose so that the bottom of the hose is parallel to the ground and installed at a 90-degree angle. The hose must be fixed vertically to prevent leakage of the medium inside the hose; it should not be installed in environments where damage is not allowed and should be kept away from corrosive liquids, solvents, or oils. If liquid is present, use a funnel.
- High-pressure hoses should not come into contact with any chemicals. Contact with acids, alkalis, oils, and other similar substances is strictly prohibited. Operators working in high-temperature environments must wear protective gloves and safety glasses to prevent heat aging and damage to the rubber. Items that may come into contact with the hose, such as gasoline and diesel, should be thoroughly cleaned before use. The surface of the high-pressure hose must be free of dust, oil, and other contaminants to prevent scratches from hard objects.
- Do not work under high temperatures or strong external forces.
Do not allow the hose to come into direct contact with steel tools or fittings. If welding is required, prevent contact with flames. Do not use corrosive solvents or acid, alkali, or salt solutions for cleaning. Prevent corrosion from high temperatures and corrosive gases.
- Do not soak the high-pressure hose or its fittings in water or clean them with alkaline solutions.
If the pressure gauge needs cleaning due to water pressure or other reasons, soak it in soapy water for 6-12 hours before use. If it still does not work properly after cleaning, the high-pressure hose must be replaced. After cleaning, a high-pressure test should be performed to check for leaks, deformation, and internal wear. It can only be used after passing the inspection. High-pressure hoses, made of high-strength PVC high-pressure spiral tape, rubber sheet, or other materials, can withstand pressures exceeding 150 kPa. Any deformation or breakage during use must be addressed immediately. When replacing high-pressure hose fittings, rotate the fitting outwards 90° to ensure the rubber layer is fully impregnated into the hose, then use high-pressure adhesive to flush out all internal seals. The hose must be kept clean and dry internally to ensure normal operation and protect against high pressure. During use, the hose material must not crack, become contaminated, or suffer other damage; therefore, cleaning is essential before use.
- Ensure that the hard or flexible surfaces of the high-pressure hose and its contact points with other fittings are not scratched.
High-pressure hoses are used to transport high-pressure media on various mechanical equipment. Their working principle utilizes the frictional heat between metal and an elastomer to transfer mechanical energy, thereby extending the service life of the equipment. For large mechanical equipment, high-pressure rubber fittings offer excellent wear resistance and also exhibit superior resistance to high temperatures and pressures. High-pressure rubber hoses can be used in machinery, instruments, electronics, and chemical industries. They offer excellent mechanical sealing, high pressure resistance, and superior heat and aging resistance. Their superior sealing performance allows for extended periods of use without leakage or even maintenance, ensuring normal equipment operation. They can be used to transport and store corrosive media, such as water, oil, chemical reagents, atmospheric substances, and environmental materials. They exhibit strong weather and chemical resistance, withstanding both high and low temperatures, and are resistant to chemical corrosion. They are widely used in chemical liquid transport pipelines. High-pressure rubber hoses are highly elastic and have a certain load-bearing capacity, with working pressures reaching over 20 MPa. They can withstand pressures of 70 kg/m³ or higher (6 kPa). General working pressures from 0.35 MPa to 50 MPa are also suitable.