PriceList for Glass Bulb Fire Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong

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In the past few years, our business absorbed and digested advanced technologies both equally at home and abroad. In the meantime, our company staffs a group of experts devoted to your advancement of 3mm 141℃ Bulb, Sprinkler Fire Price, Quick Response Sprinkler, To improved expand market, we sincerely invite ambitious individuals and providers to hitch as an agent.
PriceList for Glass Bulb Fire 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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PriceList for Glass Bulb Fire Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

PriceList for Glass Bulb Fire Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

PriceList for Glass Bulb Fire Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures

PriceList for Glass Bulb Fire Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong detail pictures


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We have now a specialist, efficiency staff to provide good quality company for our consumer. We normally follow the tenet of customer-oriented, details-focused for PriceList for Glass Bulb Fire Sprinkler - 3mm Fast response sprinkler bulbs – Zhurong , The product will supply to all over the world, such as: Greece, Tajikistan, Barbados, Our company insists on the principle of Quality First, Sustainable Development, and takes Honest Business, Mutual Benefits as our developable goal. All members sincerely thank all old and new customers' support. We will keep working hard and offering you the highest-quality products and service.
  • The enterprise has a strong capital and competitive power, product is sufficient, reliable, so we have no worries on cooperating with them.
    5 Stars By Honey from Casablanca - 2017.09.09 10:18
    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 Carol from British - 2017.04.08 14:55
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