Short Lead Time for UL Listed Fire Sprinkler with High Quality

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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.


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We’ve numerous great employees customers excellent at promoting, QC, and working with kinds of troublesome difficulty inside the generation method for Short Lead Time for UL Listed Fire Sprinkler with High Quality, The team of our company with the use of cutting-edge technologies delivers impeccable quality products supremely adored and appreciated by our customers worldwide.
We’ve numerous great employees customers excellent at promoting, QC, and working with kinds of troublesome difficulty inside the generation method for China Fire Sprinkler and UL Sprinkler Head, With strong technical strength and advanced production equipment, and SMS people purposefully , professional, dedicated spirit of enterprise. Enterprises took the lead through the ISO 9001:2008 international quality management system certification, CE certification EU ; CCC.SGS.CQC other related product certification. We look forward to reactivating our company connection.

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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
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.

We’ve numerous great employees customers excellent at promoting, QC, and working with kinds of troublesome difficulty inside the generation method for Short Lead Time for UL Listed Fire Sprinkler with High Quality, The team of our company with the use of cutting-edge technologies delivers impeccable quality products supremely adored and appreciated by our customers worldwide.
Short Lead Time for China Fire Sprinkler and UL Sprinkler Head, With strong technical strength and advanced production equipment, and SMS people purposefully , professional, dedicated spirit of enterprise. Enterprises took the lead through the ISO 9001:2008 international quality management system certification, CE certification EU ; CCC.SGS.CQC other related product certification. We look forward to reactivating our company connection.


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