1. The structural design should be simple, reliable, and easy to disassemble and assemble.
2. In order to facilitate the disassembly, replacement, and cleaning of parts, the design of the actuator uses standardized, universal, and systematic parts as much as possible.
3. The surfaces of the inner and outer walls of the equipment must be smooth, flat, without dead corners, and easy to clean and sterilize. The surface of the parts should be treated with chrome plating to resist corrosion and prevent rust. Avoid using paint on the outside of the equipment to prevent it from peeling off.
4. Purified water preparation equipment should use low-carbon stainless steel or other materials that have been verified not to pollute water quality. Equipment for preparing purified water should be cleaned regularly and the cleaning effect verified.
5. The materials in contact with water for injection must be high-quality low-carbon stainless steel (such as 316L stainless steel) or other materials that have been verified not to pollute water quality. Equipment for preparing water for injection should be cleaned regularly and the cleaning effect verified.
6. The storage period of purified water should not be longer than 24 hours, and the storage tank should be made of stainless steel or other materials that have been verified to be non-toxic, corrosion-resistant, and do not leak out polluting ions. To protect the vent, a hydrophobic sterilizing filter that does not shed fibers should be installed. The inner wall of the storage tank should be smooth, and there should be no dead corners and trachoma in the pipes and welds. Sensors that display parameters such as liquid level, temperature and pressure that will not cause stagnant water pollution should be used. Storage tanks must be cleaned, disinfected and sterilized regularly, and the cleaning and sterilization effects must be verified.
7. Transportation of pharmaceutical water
1) Purified water and pharmaceutical water should be transported by stainless steel pumps that are easy to disassemble, clean and disinfect. Where purified water and water for injection need to be delivered by compressed air or nitrogen, the compressed air and nitrogen must be purified.
2) Purified water should be transported through circulating pipelines. The pipeline design should be simple and blind pipes and dead ends should be avoided. Pipelines should be made of stainless steel pipes or other pipes that have been verified to be non-toxic, corrosion-resistant, and do not leak polluting ions. The valve should be a sanitary valve without dead ends, and the flow direction should be marked when transporting purified water. 3) Pipelines and delivery pumps transporting purified water and water for injection should be regularly cleaned, disinfected and sterilized, and can only be put into use after passing the verification.
8. The design of pressure vessels must be undertaken by licensed units and qualified personnel, and must be in accordance with the national standards of the People's Republic of China "Steel Pressure Vessels" (GB150-80) and " "Pressure Vessel Safety Technical Supervision Regulations".