Protective airtight doors and airtight doors are both types of doors. Although they have many similarities, there are also some differences. Maybe you don’t have a deep understanding of these two types of doors, it doesn’t matter, below I will introduce to you in detail the difference between protective airtight doors and airtight doors, for your reference only.
Protective airtight doors and airtight doors are both types of doors. Although they have many similarities, there are also some differences. Maybe you don’t have a deep understanding of these two types of doors, it doesn’t matter, below I will introduce to you in detail the difference between protective airtight doors and airtight doors, for your reference only.
What are protective airtight doors and airtight doors?
Protective airtight doors should be able to block shock waves and meet the corresponding resistance requirements. When selecting, it should not only meet the needs of the hole size, but also meet the design pressure requirements. Although steel structure doors are more expensive and have poor anti-early nuclear radiation performance, they are usually used for relatively large vehicle entrances and exits because of their light weight and flexible opening and closing.
The fixed threshold series protective closed doors have reliable protection and low cost. However, because there is a 150mm high fixed threshold at the entrance, they are generally used for door openings where there are not many people in and out (such as the door of the toxin filtering room). ).
The cost of the movable threshold series protective airtight doors is slightly higher. The thresholds are installed in times of war and can meet the corresponding protection, sealing and other requirements during wartime. There is no threshold at the door opening at ordinary times, which facilitates the passage of people and vehicles. It also meets the requirements of fire evacuation and is suitable for use in door openings where there are usually many people and vehicles entering and exiting.
The door leaf of the drop-type series of protective closed doors can be raised and lowered. When the door leaf is in the lifting state, the lower edge of the door leaf is slightly higher than the ground level, and the door leaf can be opened. There is no threshold at the door opening, but there is a trench on the outside where the threshold is required to place the door leaf. In order to ensure that the door leaf can meet the protection and sealing requirements when it is closed, the door leaf is first lowered into the trench outside the threshold, and then the door leaf is locked with a latch.
The airtight door is a door that can increase air tightness, and the key component is the sealing device. This airbag type rapid sealing device is the first of its kind in China (patented, patent number ZL 97 2?00747.4). It has great practical significance for improving the disaster resistance of mines and reducing major economic losses and casualties caused by fires in mines. This product is made of antistatic and flame-resistant rubber material and has the characteristics of light weight, easy to carry, simple operation and fast construction speed.
What is the difference between a protective airtight door and an airtight door?
A protective airtight door is a door that can block both shock waves and poisons from passing through, while an airtight door is a door that can block poisons from passing through. . The main difference between the two is that the former is resistant to shock waves, while the latter is not.
The above is the answer to the question about what is the difference between protective airtight doors and airtight doors. I hope it will be helpful to everyone in understanding and purchasing airtight door products. In addition, I also need to remind everyone that we should first understand our needs clearly, and then choose the door that suits us based on the actual situation.