2022 China New Design 5mm 93℃ Bulb - 3mm Fast response sprinkler bulbs – Zhurong
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 |
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.
Product detail pictures:
Related Product Guide:
With our great management, potent technical capability and strict excellent handle procedure, we continue on to provide our customers with reputable top quality, reasonable selling prices and great providers. We purpose at becoming amongst your most trusted partners and earning your satisfaction 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: Morocco, Lithuania, moldova, we always keep our credit and mutual benefit to our client, insist our high quality service to moving our clients. always welcome the our friends and clients to come and visit our company and guid our business, if you are interested in our products, you can also submit your purchase information online, and we will contact you immediately, we keep our highly sincere cooperation and wish everything in your side are all well.
By Pamela from Poland - 2018.09.21 11:44
The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
By Kim from Finland - 2018.06.05 13:10