Nominal Pipe Size: DN15mm ~ DN500mm (1/4" ~ 20")

Nominal Pressure: PN 1.0~4.0 MPa (150~300 Lbs)

Operating Temperature: ≤ 300℃

Material: Carbon steel, stainless steel, etc.

Medium: Lithium powder, polycrystalline silicon, coal powder, powdered granules, gypsum liquid, sulfuric acid, hydrochloric acid, and other corrosive mediums

Widespread Application: Pipelines for new energy, electricity, oil, chemicals, etc.

Pneumatic three-way directional valves are an essential component in pneumatic control systems, widely used in various industrial control applications. Their primary function is to control the on-off and directional flow of air, thereby enabling control over the actuator.

Operating Principle

Pneumatic three-way directional valves typically consist of the valve body, valve core, spring, and gas ports. The valve body has three passages, connecting to the inlet, outlet, and exhaust ports. The valve core switches positions via pneumatic control signals, altering the direction of the gas flow. When the valve core is in a certain position, the inlet and outlet are connected, allowing gas to enter through the inlet, pass through the valve core and passages, and exit through the outlet. When the valve core shifts to another position, the inlet and exhaust ports are connected, and the gas enters through the inlet, passes through the valve core and passages, and is exhausted through the exhaust port.

Features

Simple structure, easy maintenance: The pneumatic three-way directional valve is composed of fewer parts, making it relatively easy to maintain.

‌Rapid Action, Responsive Performance: Pneumatic control ensures swift valve core switching, allowing for quick changes in air flow direction within a short time frame.

High reliability and long lifespan: Components are typically made of wear and corrosion-resistant materials, suitable for continuous operation over extended periods.

High safety and environmental protection: Pneumatic control requires no electric power, eliminating electrical sparks and other safety hazards, and enables energy recovery and utilization.

Application Scenarios

Pneumatic three-way directional valves are widely used in various industrial control applications, such as material handling on production lines, robotic gripping and placement, and positioning and adjustment of automated equipment. In material handling systems, they control the extension and retraction of cylinders, propelling materials forward or backward on conveyors; in automated equipment, they control the forward and reverse rotation of motors, adjusting the direction or speed of equipment operation. Additionally, they can be applied in environmental protection and energy sectors, such as controlling the operation of wastewater treatment equipment and the directional movement of solar tracking systems.