Factory Price Concealed Fire Sprinkler

• Customization: Available
• Sprinkler Installation: Pendent
• Sprinkler Head Type: Closed
• Model NO.: 68
• Alarm Valve Type: Wet Alarm Valve
• Automatically Opened and Closed Repeatedly: Can Automatically Opened and Closed
• Open Fire Sprinkler System Type: Water Spray System
• Closed Fire Sprinkler System: Dry Fire Sprinkler System
• Dry Alarm Valve Type: Differential Type
• Wet Alarm Valve Structure: Pilot Valve Type
• Alarm Valve Diameter: 65mm
• Nozzle Flow Coefficient: 80
• Deluge Valve Type: Piston Type
• Size: 65(Dia.)*100(H)*12(Hole Dia.)mm
• Type: Fishing Float
• Transport Package: Packing by Cartons
• Trademark: Tianxing
• Origin: Quanzhou, Fujian, China
• HS Code: 5909000000
• Production Capacity: 800000/Day

Product Description

Pendent Upright Sidewall Type of Fire Sprinkler
1. Brief introduction:
Glass bulb fire sprinklers, which is the key part of automatic sprinkler system, can be used to not just detect fire risk but control the fire and extinguish it by automatically spraying water. Since it can meet the requirements of protection from fire risks at degrees, glass bulb sprinklers are generally used in high buildings, hotels, department stores, and warehouses, etc.
The environment temperature of working is from 4 ºC to 70 ºC.
2. Composition and structure:
Made of brass frame, splash, deflector, glass ball, seals, tight set screws.
3. Operating principle:
Spray Sprinklers serve a variety of applications but all operate individually when heat at the sprinkler is high enough to "automatically" operate a calibrated thermal link that opens the sprinkler allowing the pressurized water to spray onto the source of heat. If the first sprinkler cannot control the fire the heat will build and spread to adjacent sprinklers that will operate as needed. Although special situation/applications use sprinkler heads or nozzles that are already open such that water discharges through all the sprinklers at once, the normal "Wet" Pipe system limits the water flow to the area of high heat.
4. Technical parameters:

Technical parameters
Rated operating temperature	Max.ambient temperature	Glass bulb colour	Picture
57°C	27°C	Orange
68°C	38°C	Red
79°C	49°C	Yellow
93°C	63°C	Green
141°C	111°C	Blue
182°C	152°C	Purple

Technical parameters
Type	Nominal diameter(mm)	Connecting thread	Flow coefficient
T-ZSTP Conventional sprinkler	DN15	R1/2	80±4
	DN20	R3/4	115±6
T-ZSTX Pendent sprinkler	DN15	R1/2	80±4
	DN20	R3/4	115±6
T-ZSTZ Upright sprinkler	DN15	R1/2	80±4
	DN20	R3/4	115±6
T-ZSTBS Sidewall sprinkler	DN15	R1/2	80±4
	DN20	R3/4	115±6
ZSTDY Concealed sprinkler	DN15	R1/2	80±4
	DN20	R3/4	115±6