cast aluminum explosion proof limit switch Industry , flameproof switchgear

Description:

In the electrical control system, the role of the limit switch is to achieve sequential control. The positioning control and the detection of the position state are used to control the stroke and limit protection structure of the mechanical device: it consists of the operating head, the contact system and the outer casing.
In actual production, the limit switch is installed in a pre-arranged position. When the module mounted on the moving part of the production machine hits the limit switch, the limit contact acts to realize the switching of the circuit. Therefore, the limit switch is an electric appliance that switches the circuit according to the stroke position of the moving part, and its function is similar to that of the button.
Limit switches are widely used in various types of machine tools and lifting machinery to control their travel and limit the terminal. In the control circuit of the elevator, the limit switch is also used to control the speed of the switch car door, the limit of the door is automatically opened and closed, and the upper and lower limits of the car are protected.

Application:

Designed for Explosive atmosphere Zone land Zone 2

Designed for Groups IIA, IIB, IIC

Designed for Combustible dust Zone20, Zone 21, Zone22

Designed for Temperature classesT6

Apply to oil drilling platforms, offshore oil platform, oil derrick, etc for the dangerous sites

Features:

1. The three-dimensional position indicator clearly shows where the valve is.
2. Die-cast aluminum alloy shell, powder coating, compact design, beautiful appearance, reducing valve packaging volume and reliable quality.
3. Two-wire interface double 1/2 NPT pipe interface.

4. The switch position can be clearly identified by the indicator.

5. Double wiring port, standard contact, safe and convenient wiring.
The brackets conform to the NAMUR standard. The brackets conform to the ISO5211 standard, and any rotary actuator can be easily installed.
6. Anti-off bolts, the bolts attached to the upper cover will not fall off when disassembling.
7. Easy to install, stainless steel spindle connection part and mounting bracket are in line with VDI / VDE 3845, NAMUR standard.