The pass box is a must for purification projects. What kind of transfer windows are there? How to choose a transfer window?
First of all, look at the definition in the first specification of the current purification industry, "Clean Plant Design Specification GB50073-2013": "2.0.22 Pass box The window set on the partition wall of the clean room to pass materials and tools. Installed on both sides. There are sashes that cannot be opened at the same time." So what are the transmission windows in reality? What are the functions of the different types of transfer windows? Come, purify Xiaoqiang to tell you one by one, welcome to leave a message in the production or demand delivery window for additional corrections:
1. Purification type A: A transfer window with basic functions. What is the basic function? It is the basic function that can meet the defined definition.
2. Purification type B1: It has basic functions, and has a self-circulating air purification system composed of fans and high-efficiency filters, which can purify the air inside the transfer window. It is customary to call it a self-purification transfer window.
3. Purification type B2: It has specific basic functions, and has an air supply system and an exhaust system with a high-efficiency air filter, which can purify the air inside the transfer window and the air discharged from the transfer window. The function is increased compared with the B1 type, and the price is of course high.
4. Purification type B3: It has basic functions, and also has the function of the air shower room, which can purify the surface of the items to be transferred and placed in the transfer window through the high-speed clean air sprayed by the nozzle. This is generally used in clean projects with high requirements for cleanliness and frequent item transfer.
5. Disinfection type C1: It has basic functions and is equipped with an ultraviolet lamp tube in the box, which can disinfect the air in the channel, the wall surface, or the surface of the items to be transferred. This is also the most basic transfer window in a biological clean room.
6. Disinfection type C2: It has basic functions, and the inlet and outlet of the disinfection gas (steam) body are set on the wall surface of the box, which can disinfect the inner space of the transfer window. During disinfection, the external disinfection device may send the disinfection gas (steam) body to the transfer window box through the inlet and outlet of the disinfection gas (steam) body. It has a higher level than the UV lamp and has strong sterilization, especially for the germs that cannot be disinfected by the UV lamp. For example, with VHP and so on.
7. Negative pressure type D: It has basic functions and can maintain a certain negative pressure in the transmission window box. This is mostly used in the clean engineering of biosafety or toxic biopharmaceuticals.
8. Air-tight E1: It has basic functions and should meet the following air-tightness requirements: when the internal smoke method is used for detection, there is no visible gas leakage at the gap.
9. Airtight E2: It has basic functions and should meet the following airtight requirements: when the internal pressure decay method of the box is used for detection, when the pressure inside the box reaches -500Parg, the natural attenuation of negative pressure within 20min is less than 250Pa. This should be the dedicated transfer window for P4 Labs.
Wuxi Lenge Purification Equipments Co., Ltd. is a professional manufacturer of purification equipment, our products are suitable for pharmaceuticals, laboratories, food and beverage, electronics, etc. We also have stainless steel furniture. If you are interested in purification equipment and stainless steel furniture, please contact us! You can contact us at 86-510-85189266. Or send an email to firstname.lastname@example.org.
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