產品特點：
閥關閉后在通電或斷電都不會自動開啟，需手動拉開，保持打開狀態，節能、安全；不銹鋼閥芯，在長時間不動作情況下，通電啟動閥門，關閉反應迅速；零泄漏。

主要技術參數：

工作原理：
A：當安全閥需要打開時，旋下防護罩（如防護罩中間有螺紋孔型，將他旋在聯動桿上當手柄使用），用力拉手柄，閥打開。
B：當安全閥需要關閉時，線圈通電不超過30秒鐘，閥1秒內迅速關閉。

特殊功能：
信號反饋：當閥打開時，信號公共線和開信號線接通；當閥關閉時，信號公共線和關信號線接通。
手動功能：安全閥需要關閉時，旋下手動防護罩，用力按手動柄，閥關閉。

規格尺寸：

Applications:
It is widely used in industrial furnaces, boilers, gas pipelines, gas treatment plants, filling stations, gas leak alarm systems, security systems, fire alarm systems, explosive media, cut off the city or the factory; when that potential accidents Quick cut, time to stop fatal accidents.

Features:
Valve is closed off in the power or will not open automatically, manually opened, remains open, energy saving, safety; stainless steel spool, in a long time does not move cases, the power-up the valve, close the quick response; zero leakage .

Main technical parameters:

How it works:
A: When the safety valve requires open, unscrew the protective cover (such as the middle guard screw hole, and put him in the rotation linkage rod using the handle), pull the handle, the valve opens.
B: When the safety valve need to close when the coil power of not more than 30 seconds, turn off the valve quickly within 1 second.

Special features:
Signal feedback: When the valve is opened, the signal common line and signal lines connected to open; when the valve is closed, the signal common line and off signal line connected.
Manual functions: safety valve need to close time, unscrew the hand guard, forced by manual handle, the valve closed.

Size: