4V solenoid valves (named from "4-Way Solenoid Valve") serve as the nervous system of industrial pneumatic networks by directing compressed air flow with electromechanical precision. These valves feature 2-position/3-way (3V series) or 2-position/5-way (4V series) configurations, where the valve spool shifts to connect/disconnect ports based on electromagnetic coil activation.

For over a century, Festo has led as a global innovator in automation technology (celebrating its 100th anniversary in 2025). Headquartered in Germany, the company empowers industries with its core philosophy of "pneumatic-electric integration and hardware-software synergy". This approach drives sustainable, efficient, and adaptable solutions across manufacturing, semiconductor, renewable energy, and life sciences sectors.

In the industrial field, pressure regulating valves are seemingly inconspicuous but vital components. They are widely used in various gas and liquid systems to ensure the normal operation of equipment and avoid equipment damage or failure due to excessive or low pressure.

Pneumatic valves are the workhorses of industrial automation, controlling the flow of compressed air to drive cylinders, actuators, and processes. Yet their reliability hinges on one often-overlooked component: air preparation units (APUs). Proper air treatment isn't optional—it's the foundation of efficient valve operation.

In pneumatic systems, air source treatment components play a vital role. They ensure the efficient and safe operation of pneumatic systems and extend the service life of equipment.

A reliable and clean compressed air supply is the lifeblood of pneumatic systems across countless industries. While the air compressor generates the essential power, the quality of this air directly impacts equipment performance, lifespan, and operational costs. This is where Air Preparation Units (APUs), commonly referred to as FRL Units (Filter-Regulator-Lubricator), become indispensable. Properly installed and applied FRLs protect downstream equipment, ensure consistent operation, and maximize the efficiency of the entire compressed air system originating from the compressor.