Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong

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As for competitive charges, we believe that you will be searching far and wide for anything that can beat us. We will state with absolute certainty that for such excellent at such charges we have been the lowest around for Residential Brass Chrome Faced Fire Hose, Sprinkler Nozzle Fire, Pendent Spray Fire Sprinkler Head, Our tenet is clear all the time: to deliver high quality product at competitive price to customers around the world. We welcome potential buyers to contact us for OEM and ODM orders.
Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong Detail:

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Size(mm) Temperature Rating (℃/°F) Color
A 2.4 68℃ / 155°F red
B 1.5 79℃ / 175°F yellow
C <4.2 93℃ / 200°F green
D 3±0.1 141℃ / 286°F blue
d1 3.5±0.4
d2 3.5±0.3
L 23±0.5
l1 20±0.4
l2 19.8±0.4
Glass bulb load(N) Average Cursh load(X) 3600
lower Tolerance Limit(TL) ≥1600
aximum clamping torque 6.5 N·cm
Response time index(m*s)0.5 RTI≤50

 

The printed text on 3mm sprinkler bulb is “ZJCY”. Compared with 5mm sprinkler bulb, its response will be faster, RTI ≤ 50, where RTI is a coefficient measured under standard conditions to measure the sensitivity of sprinkler bulb. Expressions:RTI= τ u ½

Where: RTI – response time coefficient, unit (m * s) ½;
τ- Response time constant, in S;
u – gas flow rate, unit: M / s
The quality of the sprinkler bulb fully complies with the Chinese national standard GB18428-2010. The diameter of the sprinkler bulb is 3mm, and the deviation from the nominal diameter will not exceed ± 0.1mm; Its length is 23mm and the deviation from the nominal length will not exceed 0.5mm.
The average crushing load of the sprinkler bulb is 3600n. During the test, the sprinkler bulb will be fixed between the supporting elements in an appropriate way, and the supporting elements are made of steel. The Rockwell hardness is (44 ± 6) HRC, which meets the corresponding service requirements. Then, apply a uniform load along the axis of the sprinkler bulb until the sprinkler bulb bursts, and the rate of load increase is (250 ± 25) n / s. The maximum deviation of the equipment used to measure the crushing load shall not exceed ± 1% of the measured value. Use multiple groups of measured data to calculate the average value and standard deviation of the crushing load and judge whether the results meet the specified standards.


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Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures


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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for Factory Cheap Hot 5mm 79℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong , The product will supply to all over the world, such as: Denver, Honduras, Algeria, To get more information about us as well as see all our products, please visit our website. To get more information please feel free to let us know. Thank you very much and wish your business always be great!
  • The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
    5 Stars By Ruby from Liverpool - 2018.12.11 14:13
    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.
    5 Stars By Isabel from Estonia - 2018.10.01 14:14
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