fire alarm button vendor

Wenzhou Senben Security Equipment Co., Ltd founded in 2017, our company is located in yueqing city, zhejiang province, which is a one-stop purchasing company integrating production, sales and services. The company has advanced production equipment and professional fire protection technology. At present, there are more than 100 employees, including more than 10 employees overseas, through scientific and effective management system, establish a good corporate image and brand effect.

In a few years of the development of company, we always provide our customers with good products and technical support, perfect after-sales service, our company has good products and professional sales and technical team, if you are interested in my company’s products and services, look forward to your online message or call advisory!

Tel: +86-577-62912556

Fax: +86-577-62912155

Cell：+86-13806600596

product description

                          PA-SJP series Manual fire alarm button

Product Introduction and Application:

PA-SUP Series Manual Fire Alarm Button has the advantage of simple structure,novel design and easy installation.It is used in factories,Warehouse,Hotels, office buldings and medium-sized buildings'fire alarm devices.

In case of fire,Just break the glass(TypeⅠ、Type Ⅱ),or when press the start part(TypeⅡ、TypelV),the button will immediately output alarm models,start the alarm and other linkage devices.After type I and type Ⅲ actlon,reuse will need to replace the starting part (glass);After typeⅡ action,no need to replace the start-up part,only with a dedicated key to reset.

When make a regular inspection,just insert the button key Into the test hole(typeⅠ),or press the start part(type Ⅱ,type IV),Or remove the button screw(type Ⅲ)to achieve the purpose of inspection.

Main Parameters:

                        PA-SDN/SSNS series Pressure controller

Application:

Pressure controller is subjected to stress signals and action of a kind of automatic control device,In the refrigeration unit, when the compressor discharge pressure more than set point of suction pressure below the set value, the pressure controller will automatically cut off the circuit, make the compressor parking and security protection effect

Working principle：

Pressure controller is subjected to stress signals and action of a kind of automatic control device,In the refrigeration unit, when the compressor discharge pressure more than set point of suction pressure below the set value, the pressure controller will automatically cut off the circuit, make the compressor parking and security protection effect

In the refrigeration system, the high voltage end (or single high pressure) of the controller is connected with the compressor's exhaust port, and the low pressure end (or single low pressure) is connected with the suction port of the compressor. When the exhaust pressure of the compressor exceeds the set point of the controller, the contact of the high voltage end of the controller is disconnected. and the circuit is cut off and the compressor stops. When the suction pressure of the compressor drops to a point lower than the controllar's low pressure.setting,the contact of the low-voltage end of the controller is disconnected,the electrical appliance is cut off,and the compressor stops. The above situation is the opposite, the high pressure compressor exhaust pressure drops gradually to the controller set point of the lower limit,or low pressure compressor suction pressure gradually recovered to controller set point highs,controller of micro switch contact closure, Connect the circuit, the compressor is restarted. Therefore,the pressure controller plays an important role in the compressor's high and low pressure protection, which is of great significance to the cooling of the cold storage and the reasonable operation of refrigerating machine.

Outline