2022 China New Design 5mm 93℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong

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Our aim is usually to give superior quality items at aggressive rates, and top-notch company to clients around the earth. We have been ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for Fire Sprinkler System, Quick Responds Upright Fire Sprinkler, Concealed Sprinkler, The main goal of our company would be to live a satisfactory memory to all of the shoppers, and establish a long term company romantic relationship with customers and users all around the entire world.
2022 China New Design 5mm 93℃ Bulb - 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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2022 China New Design 5mm 93℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

2022 China New Design 5mm 93℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

2022 China New Design 5mm 93℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

2022 China New Design 5mm 93℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong detail pictures


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Adhering into the basic principle of quality, assistance, effectiveness and growth, we have attained trusts and praises from domestic and worldwide client for 2022 China New Design 5mm 93℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong , The product will supply to all over the world, such as: Mauritius, United States, Switzerland, Taking the core concept of to be the Responsible. We'll redound up on society for high quality merchandise and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.
  • We have been appreciated the Chinese manufacturing, this time also did not let us disappoint,good job!
    5 Stars By Kay from Barcelona - 2017.06.16 18:23
    Good quality, reasonable prices, rich variety and perfect after-sales service, it's nice!
    5 Stars By Roberta from Naples - 2017.04.08 14:55
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