Product Specifications
| Prod Model: |
ZSTX15 ZSTX20 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Size: |
Dn15 Dn20 |
| Material: |
Brass or Chrome Finished |
| The Critical Temperature: |
68/79/93 Degrees |
| Sprinkler Size: |
1/2" (15mm) 3/4" (Mm) |
| Dry Chemical Powder Fire Extinguisher: |
ABC Dry Chemical Fire Extinguishers |
Product Description
Specifications
ZSTDY concealed fire sprinkler, types of fire sprinkler heads
Operating temp.: 68/79 degree
Material: Brass, zinc alloy
ZSTDY concealed fire sprinkler, types of fire sprinkler heads
Pendent fire sprinkler, upright fire sprinkler, sidewall fire sprinkler
Style: Pendent
Operating temp.: 68/79 degree, etc
Material: Brass, zinc alloy
Size: 1/2" (15mm) 3/4" (mm)
DEACRIPTION
Each closed-head sprinkler is held closed by either a heat-sensitive glass bulb (see below) or a two-part metal link held together withfusible alloy such as Wood's metal and other alloys with similar compositions. The glass bulb or link applies pressure to a pipe cap which acts as a plug which prevents water from flowing until the ambient temperature around the sprinkler reaches the design activation temperature of the individual sprinkler. Because each sprinkler activates independently when the predetermined heat level is reached, the number of sprinklers that operate is limited to only those near the fire, thereby maximizing the available water pressure over the point of fire origin.
The bulb breaks as a result of the thermal expansion of the liquid inside the bulb. The time it takes before a bulb breaks is dependent on the temperature. Below the design temperature, it does not break, and above the design temperature, it takes less time for higher temperatures. The response time is expressed as a response time index (RTI), which typically has values between 35 and 250 m½ S½ , where a low value indicates a fast response. Under standard testing procedures (135 ° C air at a velocity of 2.5 m/s), a 68 ° C sprinkler bulb will break within 7 to 33 seconds, depending on the RTI. [13] The RTI can also be specified in imperial units, where 1 ft½ S½ Is equivalent to 0.55 m½ S½ . The sensitivity of a sprinkler can be negatively affected if the thermal element has been painted.
Fire Extinguishers,Fire Fightings,Fire Safety,China Dry Chemical Powder Fire Extinguisher,Fire Equipment,China ABC Dry Chemical Fire Extinguishers,Fire Extinguisher,CO2 Fire Extinguisher,Foam Fire Extinguisher,Fire Fighting Equipment
Ningbo DSW International Co., Ltd. Established 1998, specialising in producing fire extinguishers, ABC dry powder fire extinguisher, ABC dry chemical fire extinguisher, CO2 fire extinguisher, sprinklers systems, fire hoses, fire hydrant& hose fitting brass die casting.
DSW always keep quality, service and cost as core, it has passed ISO9001 International Quality system and European CE Quality system as well as the test of Union EN-3. In order to ensure hight quality of products, every piece fire extinguishers and accessories pass 15 step test, before every shipment, sending Test report and loading pictures to our customers.
Through the efforts of both Domestic and International sales forces, DSW has emerged as the premier name for fire protection products. 80% of DSW products has been exported to different countries and regions, such as South America, Europe, Asian, Middle East etc.
Ningbo DSW International Co., Ltd is a leading provider of security & safety solutions in China since 1998. We are manufacturer, suppliers, and dealer in China of different safety and security products such as safety shoe, safety goggles, safety gloves, military boot, PVC boot, helmet, fire alarms, Siren & Alarm, LED emergency light, exit light, call point, manual pull station, smoke detector in China. We are safety & security protection product and Personal protect equipment dealer in China.
We enjoy convenient access to major transportation networks. Our company covers an area of 13000 square meters. Furthermore, all our products are manufactured with advanced equipment and stric QC procedures in order to ensure high quality. Guaranteeing stable and timely supply, credible quality and sincere service, our products sell well in both domestic and oversea markets. Through the efforts of both Domestic and International sales forces, DSW has emerged as the premier name for fire protection products. 80% of DSW products has been exported to different countries and regions, such as South America, Europe, Asian, Middle East etc.
Over the PAS few years of production and management and exploration, DSW set up its own quality management system. Passed the ISO9001: 2000 quality system certification. DSW to always implement the concept of customer value creation for customers tailored products to meet the needs of different customers, and continuously provide customers with solutions and technical problems. Further exploration and innovation and excellence.
If you are interested in any of our products, or wish to place a customized order, please contact us. We will do our best to meet your needs.
Business Type: Manufacturer/Factory & Trading Company
Business Range: Light Industry & Daily Use,Lights & Lighting,Manufacturing & Processing Machinery,Security & Protection
Management System Certification: ISO 9001,ISO 14064
International Commercial Terms: FOB, CFR, CIF, DAT, DDP, CIP
Terms of Payment: LC, T/T, D/P
Average Lead Time: Peak season lead time: one monthOff season lead time: one month
Number of Foreign Trading Staff: 11~20 People
Export Percentage: >90%
Annual Export Revenue: 5 million~10 million USD
Main Markets: North America, South America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea), Africa, Australia, Domestic
Export Mode: Have Own Export License
Factory Address: 1301-1302, No. 5 Oriental Commercial Center, Xingning Road, Ningbo, Zhejiang, China
R&D Capacity: OEM, ODM
No. of R&D Staff: 11-20 People
No. of Production Lines: 6
Annual Output Value: US$5 Million - US$10 Million
