Sanitary valves common sense
Hello!Everyone welcone visit our website,today we will explain the sense of sanitary valves.
Sanitary valves as the name suggests is in line with health standards (medical standards or food standards) valve, valve body to meet the health standards of stainless steel, all parts in contact with the medium are mirror polishing, polishing and cleanliness must meet the health standards of the valve components, mainly used in food processing, pharmaceutical, clean areas, Places requiring high levels of hygiene and free from physical and chemical hazards.
Sanitary valve type:
Sanitary valves have requirements for their valve body material and sealing material, the material is basically stainless steel, the sealing surface of the valve seat must use non-toxic materials, such as hard seal stainless steel, soft seal rubber (the temperature is usually used within 140 ° C ethylene propylene rubber, fluorine rubber toxic can not be used.) More common sanitary valves are: sanitary butterfly valve, sanitary ball valve, sanitary check valve, sanitary solenoid valve, sanitary diaphragm valve.
Sanitary valve mechanical seal requirements:
1, comply with GMP requirements;
2, the surface finish is above 1.6;
3, the contact surface can be cleaned and disinfected in situ;
4, smooth transition, no accumulation;
5, there is a structure to prevent string material outside the sealing surface.
The difference between sanitary valves and ordinary valves:
Strictly speaking,sanitary valves have high manufacturing standards,which are mainly developed for some biological fermentation enterprises,and have particularly high requirements for the finish of the valve runner.Sanitary valves and media contact parts are mostly made of stainless,clean and smooth surface will not produce corrosion and falling off materials,production and processing after special treatment,in many aspects are industrial valves can not be compared,such as cleanliness, simple installation etc. Pharmaceutical and other industries manufacturing valves.