The Ex-proof directional valve is used to ensure safe flow control in environments with explosion risks. These products are specially designed to prevent the formation of electrical arcs. They operate safely in areas containing flammable gases and vapors, such as in the oil, natural gas, chemical, and mining industries. The internal structure of the valve is insulated to protect against sparks and high temperatures. Additionally, the external body is manufactured to meet the IP65 protection rating, ensuring resistance against moisture, dust, and external impacts.

Sayfa İçeriği

Operating Principle and Structural Features

Ex-proof directional valves direct the compressed air from the system into the actuator to perform the opening and closing operation. This direction is controlled through electrical signals. The valve body is made from aluminum casting, ensuring long-term performance in field conditions. The models offered by Unox can be installed either with a direct Namur mounting or pipe mounting. Additionally, the valve head is designed to be rotatable, providing optimal ease of installation.

What Are the Technical Specifications?

The Ex-proof directional valve is offered as the SV211 model. Its body is made of aluminum. The inlet and outlet ports are specified as PF/4. The product can operate at a maximum pressure of 12 bar and withstand temperatures between +5 °C and +70 °C. Voltage tolerance is set at ±10%, and it can operate at a maximum frequency of 5 cycles per second. All components are protected in accordance with the IP65 standard.

Flexibility and Compatibility

The Ex-proof directional valve features a flexible internal design that can be converted from a 3/5-way to a 2/5-way configuration. This structure allows the valve to adapt to various system requirements. Additionally, the valve body is designed to be easily mounted in tight spaces. Technical drawings, connection diagrams, and installation instructions are available on the Unox Online platform. During installation, it is recommended to apply safety measures, such as grounding wires, to ensure the system operates safely.

What Are the Application Areas?

These valves are actively preferred in refineries, chemical production sites, LPG filling stations, and power plants. They are also used in production areas with explosion-proof certification, where their use is legally required. All these features make Ex-proof directional valves both safe and efficient.