High Quality 3mm 141℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong

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As for aggressive costs, we believe that you will be searching far and wide for anything that can beat us. We can state with absolute certainty that for such high-quality at such rates we have been the lowest around for Sprinkler Esfr, Zstx 20-68℃, Pipe Fitting, Welcome worldwide customers to contact us for business and long-term cooperation. We will be your reliable partner and supplier.

High Quality 3mm 141℃ 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
Glass bulb load（N）	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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We have a professional, efficiency team to provide quality service for our customer. We always follow the tenet of customer-oriented, details-focused for High Quality 3mm 141℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong , The product will supply to all over the world, such as: Guyana, Myanmar, Kazakhstan, They are sturdy modeling and promoting effectively all over the world. Never ever disappearing major functions within a quick time, it's a have to in your case of fantastic good quality. Guided by the principle of Prudence, Efficiency, Union and Innovation. the corporation. ake an excellent efforts to expand its international trade, raise its organization. rofit and raise its export scale. We've been confident that we've been going to have a bright prospect and to be distributed all over the world in the years to come.

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