XM型泄压密封门是在使用普通密封门的实践基础上,并根据大型空调室和除尘室的实际工作需要,设计出来的九十年代最新产品。它具有安全、可靠、经济、适用等特点,与普通的密封门相比,不仅可以适用于一般风压下的风室,而且还可以适用于较大风压下的各种风室的出入口。现将其优点分述如下:一、一分为二,开关容易XM型密封门其主要特点是:对于高度较大的大型密封门,在其上开设一个可以使人能够进出的小门;对于高度不太大或较小的密封门,在其上只开设一个适当的检查门,这个检查门作为检查之用,必要时也可作泄压之用。XM型密封门无论是左旋,还是右旋,一般都设计成向外开启的,而其上的小门可以向内开启（XMA型）也可以向外开启（XMB型）。无论是哪 XM-type pressure relief seal door is based on the practice of using ordinary sealed doors, and according to the actual needs of the large air-conditioned room and the clean room, designed the latest products of the nineties. It is safe, reliable, economical and suitable for applications. Compared with ordinary sealed doors, it can be applied not only to the plenum under general pressure but also to the entrances and exits of various plenums under relatively large pressure. Now its advantages are described as follows: First, one in two, the switch is easy XM-type sealing door its main features are: For a large large-scale sealed door, opened on it to enable people to access the door; for Not too large or small height of the sealed door, in which only open a suitable inspection gate, the inspection door for inspection purposes, if necessary, can also be used for pressure relief purposes. XM-type sealing door, whether it is left-handed or right-handed, is generally designed to open outwards while the wickets on it can be opened inward (XMA) or outward (XMB). No matter where