Factory Price Bulb Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong

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We stick to our enterprise spirit of Quality, Performance, Innovation and Integrity. We purpose to create a lot more price for our prospects with our rich resources, innovative machinery, experienced workers and great products and services for Sprinkler Cabinet, 1/2" Brass Fire Sprinkler System Column, 3mm 79℃ Bulb, Our firm is dedicated to giving shoppers with significant and steady high quality goods at aggressive price tag, generating every single customer satisfied with our products and services.
Factory Price Bulb Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong Detail:

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

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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 Price Bulb Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

Factory Price Bulb Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

Factory Price Bulb Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

Factory Price Bulb Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures


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Every single member from our higher effectiveness product sales staff values customers' requires and organization communication for Factory Price Bulb Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong , The product will supply to all over the world, such as: Tunisia, Adelaide, Armenia, With the intensified strength and more reliable credit, we are here to serve our customers by providing the highest quality and service, and we sincerely appreciate your support. We will endeavor to maintain our great reputation as the best products supplier in the world. If you have any questions or comments, please contact with us freely.
  • High Quality, High Efficiency, Creative and Integrity, worth having long-term cooperation! Looking forward to the future cooperation!
    5 Stars By Zoe from Czech republic - 2017.03.28 12:22
    Although we are a small company, we are also respected. Reliable quality, sincere service and good credit, we are honored to be able to work with you!
    5 Stars By Nicole from Melbourne - 2017.11.20 15:58
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