Residential Brass Chrome Faced Fire Hose ZSTX 15-79℃ Upright Acid-washed Fire sprinkler heads – Zhurong

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That has a positive and progressive attitude to customer's interest, our organization consistently improves our products quality to satisfy the demands of shoppers and further focuses on safety, reliability, environmental specifications, and innovation of Esfr Quick Response Sprinkler, Foam Nozzle, Zstx80-57℃, Our products are regularly supplied to many Groups and lots of Factories. Meanwhile, our products are sold to the USA, Italy, Singapore, Malaysia, Russia, Poland, and the Middle East.
Residential Brass Chrome Faced Fire Hose ZSTX 15-79℃ Upright Acid-washed Fire sprinkler heads – Zhurong Detail:

Fire Sprinkler
Type Upright
Material Brass
Nominal diameter(mm) DN15 or DN20
K factor 5.6(80) OR 8.0(115)
Rated Working Pressure 1.2MPa
Testing pressure 3.0MPa holding pressure for 3min
Sprinkler Bulb Special response
Temperature rating 79℃(174℉)

What is an upright sprinkler head?

Upright fire sprinklers spray water upward to a concave deflector, producing a dome-shaped spray pattern. They install deflector-up to cover specific areas and to prevent ice and debris from collecting in the head. Upright sprinklers are installed where obstructions interfere with coverage and in dry-pipe systems facing freezing temperatures.
The upright sprinkler is uprightly installed on the water supply branch pipe. The sprinkler shape is parabolic. 80 ~ 100 of the total water is sprayed downward. At the same time, some are sprayed to the ceiling. It is suitable to be installed in places with more moving objects and prone to impact, such as warehouses. It can also be concealed on the roof in the ceiling interlayer of the room to protect the ceiling with more combustibles (for places without ceiling, when the water distribution branch pipe is arranged under the beam, it shall be upright).
This type of sprinkler has been pickled and passivated, which can give full play to the ground erosion potential of the sprinkler. Generally, thorough cleaning, including alkali cleaning and pickling, and then passivation with oxidant are required to ensure the integrity and stability of the passivation film. One of the purposes of pickling is to create favorable conditions for passivation treatment and ensure the formation of high-quality passivation film. Because a layer of surface with an average thickness of 10 microns on the sprinkler surface is corroded by pickling, and the chemical activity of the acid solution makes the dissolution rate of the defective part higher than that of other parts on the surface, pickling can make the whole surface tend to be uniform and balanced, and some hidden dangers that are easy to cause corrosion are removed. But more importantly, the corrosion resistance of the sprinkler is improved by acid pickling and passivation. Cleaning, pickling and passivation of sprinkler surface not only maximize corrosion resistance, but also prevent product pollution and obtain beauty.


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Residential Brass Chrome Faced Fire Hose ZSTX 15-79℃ Upright Acid-washed Fire sprinkler heads – Zhurong detail pictures

Residential Brass Chrome Faced Fire Hose ZSTX 15-79℃ Upright Acid-washed Fire sprinkler heads – Zhurong detail pictures

Residential Brass Chrome Faced Fire Hose ZSTX 15-79℃ Upright Acid-washed Fire sprinkler heads – Zhurong detail pictures


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  • In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
    5 Stars By Lydia from Bolivia - 2017.10.13 10:47
    Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
    5 Stars By Nicole from Manchester - 2018.09.23 17:37
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