SOL5B4 is a pilot-operated 2-way solenoid valve designed for industrial fluid control in liquid or gas applications. It features a normally open (NO) operation with 230Vac electrical supply, a forged brass body with magnetic stainless steel plunger, and G1-1/4" BSP port size (DN 32). The valve operates across a fluid temperature range of -20°C to +90°C with a maximum room temperature of 80°C, and is rated for continuous service with VDE-approved coil and IP65 protection class. With a minimum operating pressure of 0.4 bar and maximum flow capacity of 17 m³/hr, this valve is ideal for use in autoclaves, cooling systems, watering equipment, fire extinguishing systems, and other industrial applications requiring reliable pilot-operated fluid control.