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. major fire-resisting 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. fire-resisting window direct deal 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.
The advantages and disadvantages of the products of Henan fire rolling shutter manufacturers The fire rolling shutter is usually located at the poor entrance of the building, which plays a role in fire prevention, heat insulation and smoke dispersion. The fireproof rolling shutter door is a useful time to isolate the fire source when a fire occurs and provide a useful escape for employees. major fire-resisting window However, the inferior fire rolling shutter door will not only not intercept the fire source, but also increase the fire. Therefore, the advantages and disadvantages of the fire rolling shutter door are also quite important. Henan fire rolling shutter door The rolling shutter door will stop landing when landing to the required height, which is to avoid people who have not had time to escape being trapped inside the rolling shutter door. fire-resisting window direct deal If the inferior rolling shutter doors were all lowered, the surviving victims would be trapped inside and become unnecessary casualties. Recommended reading: The fire hour and temperature resistance limit of some fire rolling shutter doors are strictly defined in the fire rolling shutter door specification. Therefore, excellent guaranteed fire rolling shutter doors must be used when adopting and purchasing rolling shutter 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. major fire-resisting 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. fire-resisting window direct deal 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.
Henan fire door selection method Fire door is particularly important as a family fire protection, but when you buy low-quality fire door, the fire door is no longer fireproof, what should you do? The fire department of our city investigated and destroyed a batch of inferior fire doors with honeycomb paper instead of fireproof filler materials. Here, the firefighters introduced some tips on how to select and purchase high-quality fire doors. According to the regulations, steel and wood fire doors can be divided into Class A, Class B and Class C according to the fire resistance limit. The fire resistance limit requirements are 90 minutes, 60 minutes and 30 minutes respectively. In addition, the wood used to make wood fire doors needs drying and flame retardant treatment, and the hardware used must also be fire hardware. major fire-resisting window There are five ways to choose high-quality fire doors: one is to check the appearance, high-quality steel fire doors are firmly welded, and the welding spots are evenly distributed; The external surface shall be sprayed flat and smooth; There shall be product mark, quality inspection mark and quality certification (approval) mark at the specified position. fire-resisting window direct deal The qualified wooden fireproof door shall be intact without damage, and the surface shall be clean without plane marks, burrs and hammer marks; Corner cutting and butt joint shall be tight and flat. The second way is to check the figures. The overall dimensions of qualified products should be less than or equal to the overall dimensions in the sample description, the door leaf thickness should be greater than or equal to the door leaf thickness in the sample description, the door frame sidewall width should be greater than or equal to the door frame sidewall width in the sample description, and the overall dimensions of fire-resistant glass should be less than or equal to the overall dimensions of fire-resistant glass in the sample description, The thickness of fireproof glass shall be equal to or greater than the thickness of fireproof glass in the sample description.
