How to select quick connector

How to select quick connector?1, the type of fluid, temperature (see selected for the type of fluid, the temperature of the body material and the sealing material of the quick connector)The fluid, for the body material, the sealing material is different. For example, the quick connector is air. Recommended steel, is the water you choose brass or stainless steel.2, the liquid pressure (see pressure selected for the performance of the fluid pressure quick connector)Fluid pressure is also quick connector selected key.Hydraulic pipe fittings  quick coupler is used 5.0Mpa (51kgf/cm ²)-68.6Mpa (700kgf/cm ²) is formed between the series, corresponding to the pressure characteristics of quick connector configuration is different.
3, automatic switch valve structure (please select appropriate use of the valve structure pipe quick connector) For the valve structure, there are two-way switch type, one-way and two-way switching open. Since the two-way switch in addition to the separation type other than a fluid flow from the piping. So please be careful.4, quick hose connector use of the environment (Please select suitable environment construction, materials, quick connector) Combined with environmental conditions of humidity and dust conditions, and easy to use environment corrosion to consider the type of the selected quick connector, bulk materials, sealing materials.5, the installation of the shape, size (in determining the final shape and size after ordering products) Make sure the quick connector type and material, and specify the corresponding properties in the assembly of piping shapes and sizes. Note that the size of the fluid flow associated