High reputation Spray Fan Water Jet Nozzle - Fusible Alloy Fire Sprinkler – Minshan
High reputation Spray Fan Water Jet Nozzle - Fusible Alloy Fire Sprinkler – Minshan Detail:
Working principle:
This product is composed of the nozzle body frame, sealing seat, gasket, positioning plate, molten gold seat, molten gold sleeve and bracket, hook plate and fusible alloy, etc. The fusible alloy between the molten gold and sleeve is in the event of a fire Melted by the increase of temperature, the height between the molten gold and the sleeve changes and decreases, the positioning plate loses support, the hook plate falls off without a fulcrum, the bracket tilts, the water flows out of the sealing seat and starts to spray water. Next, the water flow indicator starts the fire pump or alarm valve, starts water supply, and continues to flow from the source of the sprinkler that has been turned on to achieve the purpose of automatic water spray.
Specification:
| MODEL | Nominal Diameter | Thread | Flow Rate | K Factor | Style |
| ESFR | DN15 | R1/2 | 80±4 | 5.6 | Pendent/Upright fire sprinkler |
| DN20 | R3/4 | 115±6 | 8.0 | ||
| DN25 | R1 | 242 | 16.8 |
How to use:
During installation, screw the nozzle thread into the housing, and then screw it into the installation tube together, and use a special wrench to extend into the housing to tighten the nozzle on the pipe. When tightening, be careful not to touch the glass ball of the spray head and the anti-splashing disk; do not twist the support arm of the spray head, otherwise it will deform the spray head and cause leakage.
Finally, screw the inner cover into the outer cover (special attention: because the inner cover and the bottom cover are welded with a low-temperature fusible alloy, the welding strength of the low-temperature fusible alloy is low, so it should be Take special care not to apply excessive force on the bottom cover, but slowly screw into the outer cover according to several points on the inner cover that are distributed according to the spiral.
Excessive force will cause the fusible alloy to break, and the bottom cover and inner cover will fall off. The special wrench produced by our factory should be used for installation. If the spray head cannot be sealed after installation, it is never allowed to install with an extended sleeve on the wrench. Check whether the pipe fitting is qualified). If the pipe fitting is unqualified, please replace or repair the pipe fitting thread before installation. If forced installation may cause damage to the nozzle.
Application :
This product is a closed sprinkler opened by the melting of fusible alloy components by heating. Like the glass ball closed sprinkler, it is widely used in hotels, commercial buildings, restaurants, warehouses, underground garages and other light and medium-hazard level automatic water spray Heat sensitive components of fire extinguishing system.
Production line:
The company has integrated a whole set of production line together, strictly comply with each part of the process requirements, control each step of the procedure, to improve the overall work efficiency.
Certificate:
Our company have passed the CE certification, the Certification (CCC Certificate) by CCCF, the ISO9001 and many specified standards requirements from the international market.Existing quality products are applying for UL,FM and LPCB certifications.
Exhibition:
Our company regularly participates in domestic and international large-scale fire exhibitions.
– China International Fire Protection Equipment Technology Conference & Exposition in Beijing.
– Canton Fair in Guangzhou.
– Interschutz in Hannover
– Securika in Moscow.
– Dubai Intersec.
– Saudi Arabia Intersec.
– Secutech vietnam in HCM.
– Secutech India in Bombay.
Product detail pictures:









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We have been experienced manufacturer. Wining the majority of the crucial certifications of its market for High reputation Spray Fan Water Jet Nozzle - Fusible Alloy Fire Sprinkler – Minshan, The product will supply to all over the world, such as: Swiss, Finland, United States, Our company has built stable business relationships with many well-known domestic companies as well as oversea customers. With the goal of providing high quality products to customers at low cots, we've been committed to improving its capacities in research, development, manufacturing and management. We have honored to receive recognition from our customers. Till now we have now passed ISO9001 in 2005 and ISO/TS16949 in 2008. Enterprises of "quality of survival, the credibility of development" for the purpose, sincerely welcome domestic and foreign businessmen to visit to discuss cooperation.
We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.


















