1.Description

The water flow indicator is an integral part of the automatic sprinkler system. The flow of water in the spray pipe network is used to push the blade, and the micro switch is activated to convert the water flow signal into an electrical signal, and is connected with the controller to activate the automatic fire alarm system. It can be used to detect the operation of the automatic sprinkler system and to determine the area where the fire occurred. Suitable for wet, dry, recirculating and closed automatic water spray-foam systems.

Product standard: GB5135.7 "Automatic sprinkler system Part 7: Water flow indicator"

Design Specification: GB50084 "Design Specification for Automatic Sprinkler System"

Acceptance specification: GB50261 "Code for construction and acceptance of automatic sprinkler system"

2.Technical parameters

(1) Nominal diameter: DN50

(2) Rated working pressure: 1.2MPa

(3) Sealing test pressure: 2.4MPa

(4) Connection form: threaded

(5) Alarm flow range: 15L/min~37.5L/min

(6) Switching capacity: AC220V 1A DC24V 0.5A

(7) Environmental conditions for use: 4 ° C ~ 50 ° C

(8) Wiring method: red line - power line, blue line - signal line

(9) Interface thread: R21′′

3. Specifications and their appearance and main connection size

The pipe can be installed with a center port of Rc1′′ and two ends with a nominal diameter corresponding to the fixed diameter tee.

• Thread flow indicator DN50