1.Description

The control panel and the pre-action alarm valve group, the air pressure maintenance device, the air supply device, and the pipeline accessory constitute a pre-action device.

The air pressure maintaining device is composed of an electric contact pressure gauge, a check valve, a pressure reducing valve, a control valve, a pressure reducing orifice plate and a filter.

The control panel, the air pressure maintaining device and the air supply device are used together, and the air pressure in the system side pipe network is normally maintained between 0.03 MPa and 0.05 MPa to detect the tightness of the system side pipe network, and the live working conditions of the live parts are monitored in real time. And feedback signals to the fire control center.

Product standard: GB5135.14 "Automatic sprinkler system Part 14: Preaction device"

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

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

2. the main function

1, control function

A. On-site automatic or manual control of the air compressor starts at 0.03 MPa air pressure and stops at 0.05 MPa air pressure;

B. Manually open the solenoid valve to release the pressure of the control chamber, and open the pre-action alarm valve group;

C. The fire control center automatically or manually controls the opening and closing of the solenoid valve;

2, display function

A, main and standby power display (green light)

B, running display (green light)

C, control panel fault display (red light)

D, high pressure alarm, low pressure alarm display (yellow light)

E, valve open display (green light)

F, inflatable display (green light)

G, solenoid valve open display (green light)

H, voltage display

3, alarm function

A, high and low voltage alarm and feedback signal

B, valve open, alarm alarm, pressure switch action and feedback signal

3、Technical Parameters