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Summary of floor drain in clean area            Clean area floor drain, clean floor drain, dust-free workshop floor drain            Ground drainage is a necessary drainage facility for production plant, but it is also a place where bacteria are easy to breed. Ground drainage in clean areas is one of the main sources of environmental pollution. In order to prevent the floor drain from polluting the production environment, the company has formulated strict cleaning standard operating procedures, which verify the cleaning effect of the floor drain. After cleaning according to the Standard Operating Procedures for Clean Zone Flume and Floor Leak Cleaning and Disinfection, the cleaning and disinfection effects are checked and verified in accordance with the Clean Zone Flume and Floor Leak Cleaning and Disinfection Standard Operating Procedures. The results of cleaning and disinfection after operation in the Standard Operating Procedures for Cleaning and Disinfection are in line with the requirements.            Through the verification of the cleaning effect of floor drain, it is confirmed that the results of cleaning and disinfection operation in accordance with the Standard Operating Regulations for Clean Zone Flume and Floor Leak Cleaning and Disinfection meet the requirements and prevent the production environment from being polluted. The verification process shall be carried out in strict accordance with the provisions of this scheme. If changes are necessary for special reasons, the Application for Amendment and Approval of the Verification Scheme (Schedule 1) shall be filled in and submitted to the Leading Group for approval.            It is absolutely not allowed to use ordinary drainage floor drain in the purification workshop. The technical problems such as sewage discharge, water seal cleaning and air seal must be solved.            Our company's special floor drain for purification workshop is designed and manufactured according to the imported floor drain products and the actual situation of our country. The material is made of stainless steel. It successfully solves the technical problems of dredging, cleaning, water seal, air seal and spray cooling when water and gas mix flow. It is an indispensable special purifying accessory for purifying workshop.            Characteristic:            1. The whole body is made of stainless steel with smooth and smooth surface.            2. Double seals (gas and water seals combined) are adopted to ensure the sealing.            3. The cover of the ground leakage surface adopts the hidden door type to ensure the coordination and smoothness with the whole ground.            4. Compared with the common floor drain, it can effectively prolong the service life and prevent the possibility of rusting or decaying after long-term immersion in water.            The product standard specifications and sizes are as follows:            The standard sizes of the upper cover are 140 mm, 160 mm, 180 mm and 230 mm.            The standard dimensions of the inner cavity diameter are 108 mm, 133 mm, 159 mm and 219 mm.            The standard sizes of downward drainage pipes are: 51-63, 70-76, 51-89 and 51-159.            Instructions:            1. Clean floor drain can ensure a clean production environment only by adding a proper amount of disinfectant to the inner tank of the floor drain after each cleaning of the floor drain.            2. When cleaning the floor drain, the detachable floor drain can pull out the inner riser of the floor drain, thoroughly drain the sewage in the floor drain, clean it and insert it back into the original position, that is, there is no sanitary dead angle in the floor drain, so it is suitable for sterile room drainage.            Attachment:            Clean floor drain (surface diameter * pipe diameter)            DN50 DN60 DN75 DN80 DN100 DN150 DN200 DN250 DN300 Specification            140X51            160X51 185X63 185X76            230X76 185X89 185X102            230X102 230X159 230X219 350X159 350X219 mm