The use of quick metal hose joints should comply with relevant industrial technical specifications, and the following factors should be considered when purchasing:
One is to select a suitable structure and material according to the corresponding use environment.
Including the humidity conditions of the use environment, the condition of dust, and whether it is easy to be corroded, etc., the type, body material, and sealing material of the selected quick coupling are comprehensively considered. If the metal hose joint is exposed to a chemically corrosive environment, such as salt water or acid gas, only stainless steel or brass pipe joints can be used as required.
The second is to select a suitable structure and material according to the type and temperature of the fluid. Different types of fluids, body materials, and sealing materials need to be equipped with different metal hose quick connectors. If it is air, steel metal joints are recommended; if it is water, brass or stainless steel metal joints are recommended. Therefore, when purchasing metal hose joints, the consistency of the chemical composition, temperature and pressure of the fluid and the pipe joints should be considered. In order to avoid the erosion of mineral oil and synthetic fluids, most pipe joints are electroplated. If there is a rubber sealing ring as a part of the pipe joint, it must be ensured that the material of the sealing ring is compatible with the fluid.
The third is to select a suitable gold flexible hose connector according to the structure of the automatic opening and closing valve.
The structure of the valve usually has two-way switch type, one-way switch type and two-way open type. When purchasing a metal hose connector, you must figure out in advance which type it is. In addition to the two-way switch type, fluid will flow out of the piping during separation. Therefore, it is necessary to select a quick coupling with a valve structure suitable for the piping purpose. The crimping type metal hose joint requires less space than the detachable pipe joint, and the weight is 15% smaller than that of the detachable type, which can use the effective space more economically and reduce the volume and weight of the entire system. Permanent crimping type pipe joints should be used for high-pressure pipelines, because detachable joints are not easy to install on hoses reinforced with four or six layers of spiral wire.
