Is there a distance to maintain between the fire damper and the smoke extraction duct?

Introduction Is there a requirement for the distance between the fire damper and the smoke extraction shaft? The location of the ventilation duct and the noise reduction treatment of the fire damper and fire damper and fire partition shall not be greater than 200mm. V

Is there a distance to maintain between the fire damper and the smoke extraction duct?

The location and noise reduction treatment of ventilation ducts, fire dampers and fire partitions shall not exceed 200 mm.

In air ducts of elbows, tees and valves, fire dampers must be sparse and suspended. If the length of the suspended air duct exceeds 20 meters, anti-sway brackets should be added, which should not be added. less than A.

The hanging distance of the ventilation duct insulation pipe is 30mm, and the insulation edge distance of the insulation pipe is 30mm.

The insulation of the air duct should be flat, the flange should be individually insulated, and the insulation of the flange should be based on the quality of the pipe and pipe.

The straightness of the air duct is 3 per thousand, 2 per thousand, and the total defect does not exceed 20 mm. Level 9 air has a verticality of 3‰ and 2‰. Air-spun gongs must not presentobvious surface scratches or close contact.

The ground should be flat, the wind turbine vibration damper should be uniform, the compression gap should be less than 2mm, and the damper should not rest on the foundation.

The width of the conduit and flange should be between 6 and 9, and the contact should be tight and straight.

Continuing with the non-metallic air duct flange, the flange bolts should not exceed 120mm, the flange spacing is uniform, the flange plane is flat and the thickness of flange gasket is 3-5mm.

The length of fiberglass-reinforced plastic pipes exceeding 20 meters must be equipped with at least one fixed support. The length of fiberglass reinforced plastic air ducts exceeding 20 meters must be equipped with QSA and expansion joints.

Flexible fittings should be used in air ducts and the length of the pipe should notnot be less than the expansion joint width of 100 mm. 15. Rock wool, the insulating material of air ducts, should be packed in iron angles spaced 0.6 to 0.7 m apart.

The spacing between supports and supports for ventilation ducts less than 400 mm should not be more than 4 meters, and the spacing between supports and supports for air ducts greater than 400 mm must not be greater than 3 meters.

For vertically installed air ducts, the distance between supports should not exceed 4 meters, the glass tube should not exceed 3 meters, and each riser should be fixed at least 2 minutes.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Understanding 18650 Voltage: A Comprehensive Guide to Lithium-Ion Battery Power

    Lithium-ion batteries have become the backbone of modern portable electronics, providing the energy needed for everything from smartphones to electric vehicles. Among the various types of lithium-ion batteries, the 18650 battery stands out as a popular ch
    08-27
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01