From the security point of view, the smart home security system can realize the level of the alarm point of the home security, use logic to avoid system false alarm; the remote control or keyboard to arm, disarm, alarm, the system automatically confirms the alarm information, status and Position, automatic forced busy when alarming. The smart home security system is an indispensable equipment for the people's residence at present, and it is a 24-hour all-weather martial arts master who can prevent and prevent it.

First, the basic principle of home security system

The home security system utilizes a host computer to connect various types of detectors wirelessly or by wire to implement an anti-theft alarm function. The host connects to the fixed telephone line. If there is an alarm, dial the alarm according to the mobile phone or telephone number set by the customer.

Home security systems are an important facility to prevent accidents such as theft, robbery and fire. In the event of an emergency, the owner can be quickly notified by phone, so that emergency measures can be taken quickly to prevent accidents or to expand the disaster.

Common home security system detectors include infrared body sensors, door and window magnetic sensors, smoke fire detectors, gas leak detectors, and waterproof flood detectors.
Second, the functions that the security system must have

Home doorbell: The system is equipped with a video intercom doorbell. Outsiders must pass the family door and must talk to the user. The user decides whether to open the door after seeing the person.

Infrared night vision: The camera on the video intercom has night vision function, and you can see people at night.

Monitoring: Residents can listen to outdoor sounds at any time through the microphone on the video intercom doorbell.

Immunity: Residents can set the doorbell to avoid the need when the doorbell is needed. When the outsider rings the doorbell, the room bell will not ring to avoid disturbing the household; the resident can have any display (TV, computer, or even mobile phone display) at home. Watch the video doorbell and outdoor images from the camera.

Local alarm: When an alarm occurs, the system will automatically activate the local sound and light alarm device, which acts as a threat.

Emergency help: When an emergency occurs in the household, such as when the elderly are physically unwell or the child is unable to save themselves, they can ask for help through emergency buttons located in the living room, kitchen, bedroom, bathroom, and even the watch.

Remote alarm: When there is an alarm condition, the system will alarm to the preset communication station through the telephone line. For example, the household's mobile phone, BP machine, office phone, computer, etc.

Fuzzy alarm: When the residents are required to disarm by the gangsters, the residents can be alerted in the disarmed manner.

Network expansion: It can be easily connected with the neighbors or residential communities to achieve joint defense purposes.

Remote monitoring: After the system is connected to the computer, the resident can view the home situation from any other computer and phone, such as the activity of the child, to determine whether the system is false positive.

Self-safety: The system has tamper-proof, anti-movement, anti-shear, and anti-power-off functions. The system automatically alarms when unauthorized removal, handling of the system main unit and outdoor video intercom, or cutting of any system connection.

Automatic recording: After the system is connected to the home computer, when an alarm event occurs, the photo of the outsider is automatically taken.

Remote control function: After the intelligent system is connected to other system networks, it can realize smart home control, and remote control of lighting, home appliances and communication equipment in the home through mobile phones or computers.

Butterfly valve is a simple structure of the control valve can be used for low-pressure pipeline media control switch.Butterfly valve means the closure (valve flap or disc) as a disc, rotating around the valve shaft to open and close.Butterfly Valves can be used to control the flow of various types of fluids such as air, water, steam, corrosive media, slurries, oils, liquid metals and radioactive media. Mainly in the pipeline cut off and throttling effect. Butterfly valve opening and closing pieces is a disc-shaped disc, the valve body around its own axis of rotation, so as to achieve the purpose of opening and closing or regulation.

Type: Wafer Type, Lug Type, Grooved type

Design Pressure: PN6-PN20,Class 125-Class150

Working Temperature: EPDM 16Bar at -10℃ to 120℃; NBR 16Bar at -10℃ to 82℃; Viton 16Bar at -10℃ to 150℃

Suitable Midium: Water,Oil,Gas

Details as follow drawing:


1.Wafer Type Butterfly Valve

wafer type butterfly valve


2.Lug Type Butterfly Valve

lug type butterfly valve3.Grooved Type Butterfly Valve


grooved type butterfly valve














Butterfly Valves

Butterfly Valves,Wafer Type Butterfly Valve,Lug Type Butterfly Valve,Cast Iron Butterfly Valve

HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , https://www.zifengpipeline.com