China wholesale Red Glass Bulb Sidewall Fire Sprinkler Head - Special response sprinkler bulbs (short type) – Zhurong
China wholesale Red Glass Bulb Sidewall Fire Sprinkler Head - Special response sprinkler bulbs (short type) – Zhurong Detail:
Size(mm) | Temperature Rating(℃/°F) | Color | |
A | 3.8 | 57℃ / 135°F | orange |
B | 2.02 | 68℃ / 155°F | red |
C | <4.5 | 79℃ / 175°F | yellow |
D | 5±0.1 | 93℃ / 200°F | green |
d1 | 5.1±0.2 | 141℃ / 286°F | blue |
d2 | 5.1±0.3 | ||
L | 19.8±0.5 | ||
l1 | 16±0.4 | ||
l2 | 15.8±0.4 | ||
Glass bulb load(N) | Average Cursh load(X) | 4000 | |
lower Tolerance Limit(TL) | ≥2000 | ||
Maximum clamping torque | 8.0 N·cm | ||
Response time index(m*s)0.5 | 80<RTI≤350 |
Although it is smaller, each product is subject to strict factory inspection before leaving the factory, including appearance, size, static action temperature and crushing load test.
During the static action temperature test, the test ambient temperature is (20 ± 5) ℃, and the test is carried out in liquid bath. Water bath (distilled water is preferred) shall be adopted for glass bulbs with nominal operating temperature not higher than 79 ℃, and oil bath (oil products suitable for nominal operating temperature) shall be adopted for glass bulbs with nominal operating temperature higher than 79 ℃. The temperature of the test liquid bath shall be uniform, the temperature deviation in the test area shall not exceed 0.5 ℃, and the temperature measurement accuracy shall not be less than ± 0.1 ℃.
Place the glass bulb sample vertically in the liquid bath. The distance between the center of the glass bulb and the liquid level is not less than (40 ± 5) mm. Raise the temperature from room temperature to (20 ± 2) ℃ lower than the nominal operating temperature at a heating rate of not more than 20 ℃ / min. after holding for 10 minutes, raise the temperature at a rate of 0.4 ℃ / min ~ 0.6 ℃ / min until all the samples are broken. Record the operating temperature of each sample, Judge whether the test results exceed the following temperature range:
X ±(0.035X + 0.62)
X — Nominal operating temperature, unit: Celsius (℃).
Product detail pictures:
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Control the standard by the details, show the toughness by quality. Our firm has strived to establish a highly efficient and stable workers workforce and explored an effective high-quality management system for China wholesale Red Glass Bulb Sidewall Fire Sprinkler Head - Special response sprinkler bulbs (short type) – Zhurong , The product will supply to all over the world, such as: Peru, Mauritius, Myanmar, Due to the stability of our items, timely supply and our sincere service, we are able to sell our merchandise not only over the domestic market, but also exported to countries and regions, including the Middle East, Asia, Europe and other countries and regions. At the same time, we also undertake OEM and ODM orders. We will do our best to serve your company, and establish a successful and friendly cooperation with you.
By Carol from Jamaica - 2017.09.29 11:19
High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
By Tina from Jeddah - 2017.01.28 19:59