How to choose stainless steel push in fittings
1. The type and temperature of the fluid (please choose the right stainless steel fittings and sealing materials for the type and temperature of the fluid). Depending on the fluid, the appropriate body material and sealing material is different.
2. Hydraulic pressure, fluid pressure is also key to the selection of quick couplings. The structure of stainless steel couplings varies depending on their pressure resistance characteristics.
3. The environment of use of the stainless steel push in fittings (please select the stainless steel fittings with the structure and material suitable for the environment of use), considering the type and body material of the stainless steel push in fittings, combined with the humidity conditions, dust conditions and corrosion-prone environment of the environment of use.
4. Shape and size of the installation (please order the shape and size of the product after determining Z)
stainless steel push in fittings are made of metal. There are four main methods of metal corrosion protection, namely the nature of the material itself, the environment in which it is used, the interface between the material and the environment, and the plan to improve corrosion. It would be impractical from an economic point of view to use alloys that do not lack corrosion resistance to manufacture stainless steel push in fittings unless there is a specific need, or the appearance of stainless steel fittings is completely isolated from the corrosive environmental elements.
In practice this may not be feasible and can be very difficult. Improved metal structure planning can be improved under certain conditions to improve the impact of special circumstances, but moststainless steel push in fittings planning can not be completely modified, and its protective effect is very large, so this method basically can not solve the problem, as long as the metal corrosion interface, that is, the appearance of corrosion protection treatment is now widely used methods.
Stainless steel push in fittings surface corrosion protection treatment refers to the use of various methods to apply a protective layer on the metal surface. Its function is to isolate the metal from the corrosive environment in order to prevent the occurrence of corrosion, or reduce the contact between corrosive media and the metal surface. The intention of avoiding or mitigating corrosion.
The protective layer should be able to meet the following requirements.
1. corrosion resistance, wear resistance, high hardness
2. Tight structure, no defects, small pores.
3. Firm and strong adhesion to the base material.
4. evenly distributed and thick.
The protective layer of stainless steel push in fittings is usually divided into two types: metallic coating and non-metallic coating. Metal coating is the use of strong corrosion-resistant metals or alloys to form a protective layer on the surface of corrosion-prone metals. This type of coating is also known as plating.
There are many methods and varieties of metal coatings. Among them, electroplating is the commonly used method, followed by molten metal dip plating (hot dip plating and chemical surface treatment. Non-metallic coating refers to the use of organic polymeric materials, such as paints and inorganic materials), such as ceramics, to form a protective layer on the surface of a stainless steel fitting or part, which insulates the parent material from the environmental media and prevents corrosion due to contact with standard stainless steel mediastainless steel push in fittings.