$0.80 - $3.50
Min. Order : 10 Pieces

factory manufacture upright viking fire sprinkler

Get Latest Price
Trade Assurance
Built-in order protection service in alibaba.com
Product quality
On-time shipment
More on shipping and other trade services.

Quick Details

Port: XIAMEN
Payment Terms: L/C,Western Union,T/T
Supply Ability: 8000 Piece/Pieces per Day fire sprinkler head
Brand Name: Hengdun
Type: fire Sprinkler
Place of Origin: Fujian China
Working pressure: 1.2MPA/12bar
Glass Bulb Color: red
Size: 1/2 inch or 3/4 inch sprinkler
Key word: upright fire sprinkler
Material: Brass, chrome plating
installing form: conventional
Model Number: zst
flow coefficient(k): 80
THREAD: 1/2
Packaging Detail: fire sprinkler head with carton
Hengdun Firefighting Technology Co., Ltd.
Supplier
CN
Manufacturer
≤11h
Response Time
100.0%
On-time delivery rate
US$ 20,000+
17
Transactions
101-200
Employees
1-4
R&D staffs
0
Patents
Visit Store
Product Description

 

glass bulb fire sprinkler

Upright/pendent /sidewall/concealed fire sprinkler, 

 

Style:upright/pendent/sidewall/concealed 
Operating temp.:57/68/79 /141degree,etc
Material:Brass,zinc alloy 
Size:1/2" (15mm) 3/4" (mm)

 

 

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. fire sprinkler    

 

UL fire sprinkler 

 

UL/FM fire sprinkler 

 
  • Model: NX005
  • Style: Pendent fire sprinkler
  • Size: R1/2” or NPT 1/2”
  • Material: Brass
  • Plating: Chrome, Natural brass
  • Working pressure : 12bar
  • Operating temperature ::57°C/68°C/79°C/93°C/141°C

 

  • Model: JY02-15
  • Style: Pendent fire sprinkler
  • Size: R1/2” 3/4” and NPT 1/2” 3/4”
  • Material: Brass
  • Plating: Chrome, Natural brass,
  • White painting, Blue painting
  • Working pressure : 12bar
  • Operating temperature :57°C/68°C/79°C/93°C/141° C

 


 

  • Model: ZSTX15/ZSTX20
  • Style: Pendent fire sprinkler
  • Size: R1/2” 3/4” and NPT 1/2” 3/4”
  • Material: Brass
  • Plating: Chrome, Natural brass,
  • White painting, Blue painting
  • Working pressure : 12bar
  • Operating temperature :57°C/68°C/79°C/93°C/141°

 

 

fire sprinkler(630).jpg

  • Model: ZSTX15/ZSTX20
  • Style: Pendent fire sprinkler
  • Size: R1/2” 3/4” and NPT 1/2” 3/4”
  • Material: Zinc alloy
  • Plating: Chrome finished
  • Working pressure : 10bar
  • Operating temperature : 57°C/68°C/79°C/93°C/141°C
 
  • Fusible alloy fire sprinkler
  • Model: Y-ZSTX15-72°C
  • Style: Pendent and Upright
  • Size: R1/2” and NPT R1/2”
  • Material: Brass
  • Working pressure: 12bar
  • Operating temperature: 72°C
 
  • Concealed pendent fire sprinkler
  • Model: ZSTDY15-68°C
  • Style: Pendent
  • Size: R1/2” and NPT 1/2”
  • Material: Brass
  • Working pressure : 12bar
  • Operating temperature : 68°C
 

FIRE SPRINKLER  (1011).jpg

FIRE SPRINKLER  (35).jpg   
  • ESFR fire sprinkler
  • Model: ESFR20/ESFR25
  • Style: Pendent and Upright
  • Size: R3/4” and NPT R3/4””
  • Material: Brass
  • Working pressure: 12bar
  • Operating temperature: 68°C
 
   

packing :
 
 fire sprinkler 11

 

 


 

Company

 

contact

 

111.JPGIMG_1381(20190828-144524).jpg