What is the difference between the normally open and normally closed fire doors of Henan fire doors? The differences between the normally open and normally closed fire doors are as follows: 1. Different meanings. The normally open fire doors are usually open, and they are automatically closed by the control system only in case of fire. It is generally used in the passage or corridor of public places. high quality Steel fireproof window Normally closed fire doors are closed under normal conditions and in case of fire, and need to be pushed open when someone walks around, so as to prevent smoke and fire and prevent the spread of fire. 2. The price is different, and the price of the normally open fire door is higher, and the system is strong. The price of normally closed fire doors is relatively low. Henan fireproof doors and windows 3. The composition is different. The normally open fireproof door consists of door leaf, door frame, door closer, sealing strip, release switch and other parts. The normally closed fireproof door is equipped with sequencer in addition to the above parts. 4. The control mode is different. The normally open fire door is controlled by the fire door release switch. The normally closed fire door does not need to be set with electric automatic control. It is mainly closed by the door closer and sequencer, that is, mechanical. Precautions for Henan fire door fire door 1. The fire door shall be installed according to the type of fire door used, and the appropriate installation method shall be adopted. 2. The door frame of the fire door can be fixed with the wall by expansion bolts, or iron parts can be embedded at the opening when building the wall, and welded firmly with the door frame connector during installation. 3. No matter what kind of connection mode is used between the door frame and the wall, there should be no less than 3 anchor points on each side, and they should be firmly connected. Henan fireproof doors and windows 4. When installing the fireproof door, it should be aligned and hoisted. After the size is appropriate, it should be temporarily fixed, corrected and adjusted, and then it can be connected and anchored. 5. The sliding door shall be flexible after installation; The side hung door is easy to open and tight and firm to close. Steel fireproof window Price Henan fireproof doors and windows 6. Door closers must be installed on fireproof doors, and sequencers must be installed on opposite doors. 7. The handle, fire lock and other hardware accessories on the fire door must be complete. 8. It is required that the clearance from the ground plane shall not be greater than 5mm.

Henan fire door is an important part of fire fighting equipment. Fire door is an important part of fire fighting equipment and an important part of social fire prevention. Therefore, the quality and use of fire door is the key to the success of fire prevention. high quality Steel fireproof window The fire resistance limit of Class C fireproof door is 0.6h) 1. The inspection door on the wall of equipment tube well, ventilation duct and garbage duct shall be Class C fireproof door. 2. The front door of the garbage way shall be Class C fireproof door. 3. When the cable shaft and pipe shaft are set in the front room of the smoke proof staircase and the shared front room, the inspection door on the shaft wall shall be Class C fireproof door. 4. The door connecting the substation and distribution substation should be Class C fireproof door. The door directly leading to the outdoor of the substation shall be Class C fireproof door. 5. The cable well and pipe well shall be separated from each other every 2~3 floors by incombustible materials equivalent to the fire resistance limit of the floor. The inspection door on the shaft wall shall be Class C fire door. 6. The garbage hopper shall be made of incombustible and corrosion-resistant materials and can be closed and sealed by itself; Garbage hoppers of high-rise buildings and super high-rise buildings shall be located in the front room of the garbage chute, which shall be equipped with Class C fireproof doors. 7. The telecommunication room shall adopt outward opening Class C fireproof door with a width of more than 0.7m. 8. The oxygen busbar room with the oxygen delivery capacity not exceeding 60m3/h can be set in the user's workshop with the fire resistance rating not lower than Grade III and close to the external wall. The wall with the height of 2.5m and the fire resistance rating not lower than 1.5h and the Grade C fire door should be used to separate it from other parts of the workshop. 9. The partition wall of the collection warehouse and exhibition room shall be non combustible. The compartments in the fire compartment shall be separated by partition walls with a fire resistance rating of not less than 3h and Class B fire doors. The enclosure structure of closed shaft shall be non combustible and Class C fireproof door. 10. The fire resistance limit of partition walls between production rooms with explosion risk shall not be less than 1.5h. Steel fireproof window Price The door is Class C fireproof door. 11. When the oxygen generation station building or liquid oxygen gasification station building and oxygen filling station building are arranged in the same building, the noncombustible partition wall with a fire resistance rating of not less than 1.5h and Class C fire door shall be used, and they shall be connected through the walkway. 12. The doors on the partition walls between the oxygen compressor room and the bottle filling room, as well as the purification room, the oxygen storage bag room, the oxygen storage tank room, the liquid oxygen storage tank room and other rooms shall be Class C fireproof doors.

Control Procedure for Internal Quality Management System of Henan Refuge Room Door Manufacturer 1. Purpose To conduct regular internal quality audits to verify the quality activities and related results. Stone composite procedure documents: CCCF-HZFH-02 (A/O) Rules for the Implementation of Compulsory Product Certification, Fire Protection Products, Fire Resistant Components of Buildings and other quality documents, and take corrective measures in a timely manner, So as to make the quality management system operate effectively and ensure that the product consistency meets the requirements of relevant approval rules. 2. The scope is applicable to the audit of our internal quality management system. 3. Responsibilities: The quality director shall lead the internal quality audit work, and the audit team leader shall organize the internal quality audit work under the centralized management of the office, with the cooperation of each department. Henan Refuge Room 4. Procedure (1) Audit frequency The internal quality management system of each department shall be audited at least once a year according to the following procedures. high quality Steel fireproof window In case of major quality accident or other special reasons, the quality director shall decide to conduct targeted additional audit. (2) The Audit Planning Office shall propose the "Annual Internal Quality Management System Audit Plan" every year according to the actual situation and importance of audit activities, which shall be approved and implemented by the quality director. (3) Auditors The auditors shall have the qualification of internal auditors and have no direct responsibility for the audited activities, and shall be appointed by the General Manager. For the temporary additional audit, the quality director shall specify the audit team leader and auditors. (4) Before each audit, the office shall prepare the "audit schedule plan", which shall be approved by the person in charge of quality. The audit team leader reviews the documents and assigns tasks to the auditors, who prepare the audit checklist. (5) Audited department and audit schedule; Purpose, scope and basis of audit; Audit content and specific time arrangement; Division of auditors, etc. Steel fireproof window Price The audit schedule shall be sent by the audit team leader to the audited department one week in advance. After receiving the audit schedule, the audited department can notify the audit team leader in advance if there is any objection. After negotiation, it can make appropriate adjustments.

The type, type, specification, size, opening direction, device position and anti-corrosion solution of Henan fire rolling shutter door shall meet the design requirements. high quality Steel fireproof window The accessories of the roller shutter door are complete, the position is accurate, the device is stable, and the function should meet the use requirements and various performance requirements of Luoyang roller shutter door. The rolling shutter must be firmly installed, and the number, position, embedding method and connection method with the frame of the embedded parts must meet the design requirements. The appearance of the rolling shutter door shall be clean without scratches and bruises. Eight advantages of Henan fireproof rolling shutter door: energy saving: two key technologies realize energy saving. First of all, the door opening design and double door interlock greatly shorten the door opening cycle. For clean rooms, the shortening of the door opening cycle can reduce the indoor air loss and improve the insulation capacity. In addition, there are double rows of encrypted sealing brushes inside the column of the fast door, and the pvc base card design makes installation and replacement convenient. Cost saving: The fast door is equipped with a LCD display, which will prompt when the door fails to operate, and the code or Chinese display will be displayed. This can avoid costly downtime and time-consuming technical maintenance, which greatly saves costs. Complete types: fast doors include explosion-proof fast doors, wind resistant fast doors, zippered fast doors (also called anti-collision automatic reset fast doors). Rich functions: Henan explosion-proof rolling shutter door can be linked with the air shower room, goods elevator, mechanical arm, assembly line, etc. High efficiency: according to the actual situation and requirements of customers on the site, provide a variety of control switches to improve the efficiency of daily operation. There are radar induction door opening, rope pulling door opening, geomagnetic induction door opening, remote control door opening, card swiping door access control door opening and other door opening methods. Safety: The bottom of Henan fast rolling shutter door is air tight and soft, and the door curtain is soft. There are safety photoelectric devices on both sides of the track. When there are people or obstacles under the door body, the door body will not fall, to ensure that people will not be touched by the door body. Steel fireproof window Price After sales guarantee: the control system of the fast door can timely identify the fault of Henan fast rolling shutter door, and then solve the problem in time. Yuou Door&Window Technology has a special after-sales maintenance department, which can respond within 12 hours if there is a fault.

Thickness requirements and guide rail problems of Henan fire rolling shutter door For the fire rolling shutter door itself, we will actually notice that it is actually a kind of common fire prevention equipment in buildings, and the thickness of the roller shutter on the fire rolling shutter door in Henan. high quality Steel fireproof window First of all, as for the thickness of the curtain, it actually refers to the thickness of a steel plate used for the curtain, which is actually used in practice. In terms of the current form of Henan fire shutter door, for some manufacturers of Henan fire shutter door, there will be a series of problems of jerry building. For many manufacturers, we will actually notice that when they test, they use qualified steel plates, but when they produce, In fact, the steel plate used is relatively thin. When installing this kind of roller shutter, it is not convenient to measure its thickness, so many unqualified products are easy to muddle through. Steel fireproof window Price In this respect, for the materials on the fire shutter door, the fire shutter itself will not meet the requirements. At this time, it will actually reduce its service life and fire resistance time to a certain extent.

Product classification of Henan fire door manufacturers. Fire door manufacturers combine the advantages of traditional door furniture and carry out innovative development of new door furniture. high quality Steel fireproof window The steel fireproof door has all the properties of the traditional anti-theft door and can be used in home life. The door furniture is made of superior metal composite materials, and is mainly made of aluminum alloy and stainless steel, so it has strong hardness and solves the problem of rust. It can produce chemical reaction at high temperature, generate oxygen and control the ignition point. The steel fireproof door can play a good role in fire prevention and heat insulation, which is also a performance that other metal doors do not have. The metal itself has good thermal conductivity. The scientific and technological achievements adopted by the steel fireproof door can withstand impact without deformation, which can bring greater safety to the home life. At the same time, it can also be used as the door of the factory, which can not only protect the product from fire but also prevent the product from being stolen. Steel fireproof window Price Fireproof door manufacturers also launched wooden fireproof doors, which are mainly used indoors. The exquisite carved patterns add to life. It is a new breakthrough in the series of fireproof door products. It is processed from non combustible wood materials, which can play a role in fire prevention; The steel fire door is the original fire door product, which is mainly used in factories and their gates. The steel door made of superior aluminum alloy changes the thermal conductivity of metal, which can play a good role in fire prevention. The quality of the door made of all metal is good; The steel wood fire door is the perfect combination of steel and solid wood. It is light in quality and elegant in appearance. It has played a good role in many fields of life. It can be said that it is a desirable product in the fire door series.