Water fog fire spinkler protection

Water fog  fire sprinkler protection
  Product Description    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 m½s½, 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 ft½s½ is equivalent to 0.55 m½s½. The sensitivity of a sprinkler can be negatively affected if the thermal element has been painted.   1.Material:Brass,chrome finished
2.Normal diameter:  1/2"(DN15) 3.Type:water fog centrifugal  fire sprinkler
4.Action temperautre:68 degree
5.Glass bulb:brass      Packaging & Shipping            Packaging & Delivery

Packaging Details:	200 pieces of water fog centrifugal  fire sprinkler,fire sprinkler system is generally packed in one carton,with plastic box inside for further protection during transportatin
Delivery Detail:	Within 7 working days for 5000 pieces of fire sprinkler

        Our Services    Payment terms :  T/T, Western Union(30% deposit advance,70% against the copy of BL),L/C AT SIGHT. Delivery Time:Usually 15 days after the receipt of the deposit (depend on the actual quantity of customer) OEM: AVALIABLE BASE ON A REASONABLE QUANTITY !! Supply Ability: 200000 Piece/Pieces per Month  Minimum Order Quantity:  1000 pieces of Fire Sprinkler Head,Sprinkler Head,Sprinkler       Company Information         Jinyuan Fire Fighting Plumbing Co.,Ltd is located in Quanzhou city,Fujian Province ,China. We are a professional manufacturer and exporter of Pendent Fire Sprinkler System, own two well-equipped factories for comprehensive production and project exclusive respectively, which are passed by Quality Management System ISO9001         FAQ Q1.What is your Minimum Order Quantity? May i get one free sample?   A1.As 200 pieces of sprinkler gererally packed in one carton,our MOQ is 200 pieces. Also we offer free samples if you are in need of it, which will be send within 3 days.    Q2.What kind of approval do you  have to certify your fire sprinkler's quality?   A.2 Our sprinkler manufactured according to ISO,make sure our quality,connecting size suitable the world market.   Q3.Is it ok if we ask you to manufacture Fire sprinkler according to our drawing or using our own brand ?   A3. Your own brand and drawing is avaliable for us ,If your quantity is bigger enough, we offer free mould to manufacture sprinkler according to your drawing.   Q4.How to prevent fire sprinkler we buy from damage during transportation ? How is your package condition? Is it strong engugh?   A4.We use foam plastic box to load fire sprinkler inside and packed with carton outside.It would be a excellent package condition which prevent damage no matter what occational situation may happen.   Q5.What kind of Payment Term would you accept on our first order?   A5.We accept L/C,T/T,D/P.