5mm Brass Concealed Fire Sprinklers

• Customization: Available
• Sprinkler Installation: Upright
• Sprinkler Head Type: Closed
• Model NO.: DN20
• 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

Aluminum Fire Sprinkler  Fire Fighting Equipment
1. Sprinkler is an important part of wet-type auto spraying system. It is usually installed inside the building
and structures with light fire danger, medium fire danger and heavy fire danger, such as workshop, warehouse,
hotel, shop, recreational place, hospital, cinema, office building and garage.

2. The sprinkler is composed of sprinkler frame, sealant and glass bulb. It is to be installed in the protective
district via ductwork, acting as a fire detector and auto sprayer. In case of fire inside the protective district,
the atmosphere temperature rises up and the liquid inside the glass bulb expands after being heated and
explodes after reaching the operating temperature of the glass ball. The sealant drops and the sprinkler
sprays to the protective district for fire extinguishments subject to the preset shape of spraying.

The sprinklers of the pendant installation, ZST-15/20 Fiire Sprinkler Feature:

Bulb: 5 mm/3 mm
Finishes: Chrome
Orifice Size: 1/2'', 3/4"
Nominal operating temperature: 68 Celsius degree
Nominal pressure: 12Bar(1.2MPa)
Airproof test pressure: 30bars(3.0Mpa)
Outlet: 11 ± 0, 2mm
Factor K: 80, 0
Height: 54 ± 0, 8mm
Width: 27, 5 ± 0, 5 mm
Package: 200PCS packing in a carton box
Finishes: Chrome
Bulb: 5mm/3mm
Orifice Size: 1/2'', 3/4"
Nominal operating temperature: 68 Celsius degree