HE sprinkler flaxible hose
HE flexible sprinkler hose for automatic sprinkler fire extinguishing systems has been designed and known for the first time in Iran.
This product was designed and marketed by the research and development unit of Hamiyar Energy Company, which succeeded in meeting the national standard of Iran.
And it has also been approved by the Tehran Fire Department.
Product safety of flexible sprinkler hose
All parts of this product are highly resistant to corrosion and resistant stainless steel is used. This product is 100% leak proof
It is tested and has a long life at ambient temperature.
Advantages of the sprinkler connector hose
This entire stainless steel hose is resistant and flexible from end to end, for this reason it has high resistance and is very resistant to impact. This product does not leak in any way and has a very long life at ambient temperature.
Easy product installation
This product is easily adjustable due to its high flexibility in the installation space and you can even use this product in 90 degree bends in the installation space. No special tools are needed to install this product and it is easy to install and set up this product with simple tools in the shortest time.
It is very easy to connect flexible hoses to the sprinkler system without the need for any equipment and saves additional costs.
Energy-saving hoses absorb vibrational shocks caused by the network and protect the sprinkler system from hazards caused by vibrations such as earthquakes.
The flexible hoses of Hamyar Energy prevent the waste of water in the pipe and branches due to their safe and resistant connection. Also, they do not need to move the sprinkler even after the high pressure test.
Location used for H.E sprinkler connector hoses
This equipment is used in false and hemp ceilings due to the lack of proper access for desired piping. The sprinkler hose is designed in such a way that it places the sprinkler in the right and desired place in the case where the access to the piping is difficult.
Should we use a flexible sprinkler hose?
The demand for flexible sprinkler hose connections compared to traditional rigid pipes has steadily increased over the years, and this product is used to connect the fire hose to the sprinkler system. The reasons for the rapid rise in popularity of this product can be attributed to the savings in labor, cost and time, and there are several important performance and safety benefits that flexible sprinkler hoses offer compared to traditional rigid pipes. . In the traditional method for this connection, elbows, pipes and welding are used, which brings problems such as the difficulty of accurately installing the sprinkler on the false ceiling.
In every building, the foundations are solved and destroyed over time, and the roofs can move over time, and in some cases, due to seismic activity, the sprinklers fall. This presents a problem for a rigidly threaded pipe arm, especially given the position of the sprinkler relative to the roof surface. According to the regulations, hard piping must be connected from the roof structure to the building structure. Because of this separation between the pipe and the roof, the height of the sprinkler relative to the end of the roof surface cannot always remain constant. The first advantage of using these hoses is the easy and trouble-free connection of the sprinkler to the fire pipeline and its simple connection to the ceiling by the installation kit, and with these sprinklers, you will be able to install the sprinkler in cases where access to the piping is difficult. Put it in a suitable place.
In fact, by using the flexibility of the hose with different lengths, it is possible to create suitable branches for installing the sprinkler. It is recommended to use this hose in many roofs despite the difference in the level of the roof or the existence of a false ceiling. Also, this equipment is used in false and hemp ceilings due to the lack of proper access for desired piping.
Under conditions of severe roof sag, a sprinkler can sink too far above the roof surface over time to potentially be considered in an installed condition outside of its listing or dealer approval. This means that in the event of a fire, the operational response time of the sprinkler and the characteristics of the spray pattern are greatly affected, thereby causing the fire to grow unchecked in the affected area. In contrast, a flexible sprinkler hose (per code, listing, and installation instructions) is required to be securely attached to a roof structure with a hook or bracket, such as a suspended T-grid roof channel or wood/metal joists or Connect the studs.
This tight attachment of the hook or bracket to the roof structure ensures that the height of the sprinkler relative to the roof surface remains constant over time. We will also be able to maintain the expansion, contraction and settlement of the roof structure and sprinkler water distribution characteristics in any condition due to the inherent adjustability of the flexible hose.
Design of woven vs. non-woven hose
Flexible sprinkler hoses have many different design structures. Most are made of austenitic grade stainless steel, and some designs are braided mat hoses, while others are non-woven (striped).
Braided sprinkler hoses are designed with a stainless steel braided outer covering that provides the strength necessary to withstand internal forces from system pressure, while the underlying corrugated pipe can be relatively unaffected and Remain flexible. In contrast, non-woven hoses rely solely on the pipe wall to provide both strength and flexibility. Non-woven hose loops are further apart (wide section) thereby reducing flexibility and increasing stiffness.
Because this type must simultaneously resist pressure and at the same time try to create flexibility, although it is significantly reduced, the non-woven type does not have these characteristics. In fact, braided hoses can withstand higher pressures than non-braided hoses without permanent stretching or deformation. Braided hoses can usually achieve a smaller bend radius, allowing for a greater number of bends and thus the ability to place installations in tighter, less spaced spaces.
The outer texture also provides vibration reduction features in high flow conditions and an additional level of protection against external wear. However, the complexity, geometry, and number of turns per unit length have the greatest effect on flexibility.
Wide hose, whether woven or non-woven, is more difficult to bend due to its cross-section and is more prone to kinking during installation. Buckling, defined as a reduction in cross-sectional area due to excessive bending, can occur during installation, leading to a detrimental effect on loss of hydraulic friction and corrosion resistance.
In other words, if the hose is twisted, water transfer to the sprinkler head can be reduced, and the stresses created in the wall of the twisted pipe can also lead to a decrease in corrosion resistance over time. In contrast, narrow hose provides greater flexibility due to the increased number of twists per unit length, resulting in less bending effort and, in many cases, eliminating the possibility of kinking.
Narrow braided hoses allow installation in tight spaces and significantly reduce or eliminate the potential for kinking. When manufactured under strong quality systems, subject to periodic audits, and global product approvals, flexible sprinkler hoses can help ensure that sprinkler systems are reliable, perform their jobs properly, and are ready to provide rated firefighting capability. They are in every important event.
Design criteria for fire sprinklers for minor works
The demand for flexible sprinkler hose fittings compared to a traditional rigid pipe in new installations, as well as small workspaces in Australia, has grown significantly over the years. Unfortunately, installers use these flexible sprinkler hoses without considering the friction losses shown on the data sheets, which are also shown with equivalent pipe lengths.
In the Minor Works section, for a 20-25 mm rigid pipe sprinkler, the maximum suitable pipe length is 14 meters. However, for flexible sprinkler hoses, the pipe length is dramatically reduced.
For example, data sheets available to installers include:
These flexible sprinkler hoses are only designed for an office building with a shallow ceiling clearance within 32mm. They don’t meet our needs in most cases on small jobs, as most hangers are 20-25mm. There are only a few flexible hoses that can be used for a 20 or 25mm rigid pipe. However, you may find a 1200mm flexible hose that is 9.85m long, which leaves around 4m to match the 14m required in the AS2118.. which works best in situations like shopping malls and It is used where the empty space of the roof has a height of more than 4 or 5 meters.
It would be interesting to see how many of the “Hyena Fire Sprinkler Calculations” use the correct flexible hose in the calculation, especially since each manufacturer has different equivalent pipe lengths for their brand of flexible sprinkler hoses.
Each building is custom designed according to the water flow density in each sprinkler. This is the reason for choosing 14 meters, as well as achieving at least 60 liters per minute.
You may ask why a rigid pipe like a flexible sprinkler hose does not have a hook or bracket system to the roof grid? If the pipe was to be closed tightly, you would not have the sprinklers in the roof space, as they prevent the roof from sagging and give the roof more support.
Therefore, flexible sprinkler hoses are hoses with a length of 700, 1000, 1200 and 1800 mm and have two types of woven and non-woven, which are used to connect them to the ceiling or wall with a hook or bracket for installation. It can be used in all restaurants, hotels, commercial, educational, health, cultural and entertainment centers. As building owners, insurers, regulatory agencies and legal authorities all require an increasing level of performance, safety and reliability of a fire sprinkler system over its lifetime, these products have become an easy choice to meet all these requirements.
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