Hot Sale for Brass Bulb Nozzle - 3mm Fast response sprinkler bulbs – Zhurong

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We thinks what clients think, the urgency of urgency to act from the interests of a purchaser position of principle, allowing for greater top quality, decrease processing costs, price ranges are much more reasonable, won the new and aged prospects the support and affirmation for Sidewall Fire Sprinker, Fire Sprinkler Flexible Hose, Fire Sprinkler Systems For Warehouses, We've been confident that there'll become a promising future and we hope we can have long lasting cooperation with consumers from all over the world.

Hot Sale for Brass Bulb Nozzle - 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
Glass bulb load（N）	lower Tolerance Limit（TL）	≥1600
Maximum 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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We are also focusing on improving the stuff management and QC system so that we could keep great advantage in the fiercely-competitive business for Hot Sale for Brass Bulb Nozzle - 3mm Fast response sprinkler bulbs – Zhurong , The product will supply to all over the world, such as: Palestine, Cannes, Croatia, 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.

3mm 141℃ Bulb