Core Features 2/2-Way Direct-Acting Design: Operates as a 2/2-way (2-port, 2-position) normally closed (NC) solenoid valve, using a direct-acting mechanism that eliminates the need for minimum differential pressure. This ensures reliable opening/closing even at zero or low inlet pressure (0–10 bar), making it ideal for applications where system pressure fluctuates or starts from a standstill. High-Precision Valving Components: The valve core is crafted from hardened stainless steel (304 grade) for wear resistance, while the sealing element uses ethylene propylene diene monomer (EPDM) rubber—known for excellent chemical compatibility (resists oils, water, and mild solvents) and temperature stability (-10°C to +80°C). The tight sealing design achieves a leak rate of ≤0.1 Nm³/h (at 7 bar), meeting industrial leak-tightness standards. Efficient Solenoid Coil: Equipped with a Class F insulated (155°C max) copper wire coil rated for AC 220–240V (50/60Hz) or DC 24V (configurable per order). The coil features low power consumption (≈10W for AC, ≈8W for DC) and incorporates an overheat protection design, preventing burnout during prolonged operation. A surge suppression diode (for DC models) reduces electrical noise and extends coil lifespan. Compact & Robust Housing: The valve body is made of die-cast aluminum (ADC12) with a corrosion-resistant epoxy coating (RAL 9005 black), ensuring durability in harsh industrial environments (e.g., dusty workshops, humid facilities). With dimensions of approx. 60mm (length) × 35mm (width) × 45mm (height) and a weight of ≈200g, it fits easily into tight control panels or manifold assemblies. Versatile Process Connections: Features G 1/4" female pipe threads (ISO 228-1) for inlet/outlet ports, compatible with standard pneumatic/hydraulic fittings. Optional NPT 1/4" threads are available for regional markets (e.g., North America). The connection ports are reinforced to withstand vibration (up to 10g, 10–2000Hz), preventing loosening in mobile or high-vibration equipment. Wide Operating Pressure & Temperature Range: Functions reliably across a pressure range of 0–10 bar (0–145 psi) and a fluid temperature range of -10°C to +80°C. This versatility allows it to handle both low-pressure pneumatic tasks (e.g., air signal control) and medium-pressure liquid applications (e.g., water or light oil dosing). Typical Applications The Parker Switch AS040AR1A3 is engineered for precision fluid control in light-to-medium duty industrial pneumatic and low-viscosity liquid systems, including: Pneumatic Control Circuits: Acts as a pilot valve in pneumatic logic systems (e.g., for factory automation conveyors or robotic arms). It controls the flow of compressed air (4–8 bar) to actuate pneumatic cylinders—opening to extend a cylinder (e.g., for part clamping) and closing to retract it, ensuring fast and repeatable machine movements (response time ≈10ms). Liquid Dosing & Dispensing: Regulates the flow of low-viscosity liquids (e.g., water, coolant, or mild cleaning agents) in automated dosing systems (e.g., beverage filling lines, laboratory sample dispensers). The valve opens for pre-set intervals (controlled by a PLC) to dispense precise volumes (e.g., 50–500mL) of liquid, with EPDM seals preventing contamination of food-grade or pharmaceutical fluids. HVAC Dampers & Actuators: Controls air flow in commercial HVAC systems (e.g., office building ventilation or industrial oven temperature regulation). The valve modulates compressed air (2–6 bar) to actuate damper motors, adjusting airflow to maintain set temperatures (e.g., 20–25°C in offices) or humidity levels, optimizing energy efficiency. Packaging Equipment: Manages air pressure for sealing mechanisms in packaging machines (e.g., heat-seal wrappers for snacks or blister packers for electronics). It supplies air (3–5 bar) to inflate sealing jaws, ensuring tight, consistent seals—critical for preserving product freshness (in food) or protecting components (in electronics). Medical & Laboratory Equipment: Controls fluid flow in low-pressure medical devices (e.g., dental tools, patient bed air mattresses) or laboratory instruments (e.g., chromatography sample injectors). The EPDM seals and stainless steel components comply with biocompatibility standards (FDA 21 CFR Part 177), making it safe for contact with medical-grade fluids or clean air.