Good Surface Glass Bulb/Fusbile Alloy Flush Fire Sprinkler

• Customization: Available
• Sprinkler Installation: Ordinary
• Sprinkler Head Type: Closed
• Model NO.: ZSTDQ
• Alarm Valve Type: Wet Alarm Valve
• Automatically Opened and Closed Repeatedly: Can′t Automatically Opened and Closed
• Open Fire Sprinkler System Type: Water Spray System
• Closed Fire Sprinkler System: Wet Fire Sprinkler System
• Dry Alarm Valve Type: Differential Type
• Wet Alarm Valve Structure: Seat Type
• Alarm Valve Diameter: DN50-300
• Nozzle Flow Coefficient: 80
• Deluge Valve Type: Diaphragm Type
• Thread Type: Bsp / NPT
• Glass Bulb Size: 3/5 mm
• Flow Factor: K5.6
• Glass Bulk Color: Orange,Red, Yellow,Green,Blue
• Temperature Rating: 57,68,79,93,141ºC
• Fusible Alloy: 68/74/82/100ºC
• Main Material: Brass + Ss + Iron
• Transport Package: Carton Packing, 100PCS/Carton
• Specification: R1/2
• Trademark: CA fire
• Origin: China
• HS Code: 8424200000
• Production Capacity: 50000

Product Description

Specification

Item	Good surface glass bulb/fusbile alloy flush Fire Sprinkler
Working temperature --glass bulb	57,68,79,93,141℃
Working temperature --fusbile alloy	68/74/82/100ºC
Loading port	Xiamen
Type:	1. glass bulb ; 2. fusible alloy
Main Material	brass body + SS deflector + IRON outter
Norminal diameter Size	DN15
BSPT size	R1/2  (NPT can customize)
Glass Bulk Color	Orange,Red, Yellow,Green,Blue
Connecting type	pendent
Package	foam box, carton, or pallet depend on the products

Packing & Delivery

 The fire recessed sprinkler is designed to remain hidden within ceilings or walls, maintaining architectural aesthetics while providing reliable fire protection. It activates when exposed to heat from a fire, typically via a temperature-sensitive glass bulb or fusible link. Once triggered, the cover plate falls off, and the sprinkler discharges water to control or extinguish fires. This type of sprinkler is ideal for spaces where visible sprinklers may disrupt design, such as luxury hotels, offices, or high-end residential areas. It combines discreet installation with rapid response, ensuring both aesthetic appeal and fire safety in commercial and residential environments.

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