Pneumatic Solenoid Valves for Air Compressors
Airpower supplies quality premium Solenoid Valves to ensure optimal performance and control of your compressed air systems. View our range to find the perfect fit for your compressed air needs.
Our Range of Solenoid Valves
At Airpower, we stock a comprehensive selection of solenoid valves designed to meet the diverse needs of air compressor systems and pneumatic applications. Whether you require high-flow capacity, specific voltage coils, or a particular valve configuration, our range includes durable, high-performance options built to deliver consistent and reliable control.
Each valve in our selection is carefully chosen for quality, efficiency, and compatibility with a wide variety of industrial setups.
Types of Pneumatic Solenoid Valves for Air Compressors
3-Way Solenoid Valves
Designed with three ports, these valves can direct airflow between two outlets or alternate between supply and exhaust functions. Commonly used in single-acting cylinders or pilot valve applications.a
5-Way Solenoid Valves
Used for controlling double-acting actuators, these valves allow for precise forward and reverse control, making them perfect for more complex pneumatic systems.
Normally Closed (NC) Valves
In their default state, these valves remain closed and open only when electrically energized. Ideal for systems where air should stop flowing in case of power loss.
Normally Open (NO) Valves
These valves remain open until energized. Useful in applications where airflow should continue unless specifically stopped.
Whether you're upgrading your existing system or building a new setup, Airpower has the expertise and product range to help you get the job done right. Our high-quality solenoid valves ensure reliable performance and long-term efficiency for your air compressor applications. Get in touch with our team today for expert advice, product recommendations, or a customised quote tailored to your needs.
Frequently Asked Questions About Pneumatic Solenoid Valves (FAQs)
1. What is a pneumatic solenoid valve and how does it work?
Answer:
A pneumatic solenoid valve is an electromechanical valve designed specifically for compressed air systems. When an electric current energises the coil, it creates a magnetic force that moves a plunger to open or close airflow. These valves operate reliably and with lightning-fast response—making them ideal for automated air control applications.
2. What’s the difference between direct-acting and pilot-operated valves?
Answer:
Direct-acting valves open or close using just the coil’s force and work even from zero pressure.
Pilot-operated (servo-assisted) valves rely on a minimum pressure differential (typically 0.1–1.5 bar) to function fully. These deliver higher flow rates and efficiency for larger systems.
3. Which valve type is best for my application: 3‑way, 5‑way, NC or NO?
Answer:
3‑Way valves (3 ports) are typically used with single-acting cylinders and control supply and exhaust.
5‑Way valves control double-acting actuators, allowing precise forward and reverse motion.
Normally Closed (NC) valves stay closed until power is applied, making them safe for power-loss scenarios.
Normally Open (NO) valves stay open and block flow only when energized—ideal when airflow should default to open.
4. What factors should I consider when selecting a solenoid valve for compressed air?
Answer:
Choose based on:
Compressed air pressure range (min/max),
Required flow rate (Qn),
Coil voltage (e.g. 24 V DC, 110 V AC),
Valve function (3‑way, 5‑way, NC or NO),
Operating environment (temperature, position),
Material compatibility (usually aluminium or stainless steel),
Debris control via filtration.
5. What causes solenoid valves to fail, and how do I troubleshoot them?
Answer:
Common issues include:
Insufficient pressure differential in pilot-operated valves, preventing actuation,
Blocked pilot or bleed lines due to debris,
Electrical faults or wrong voltage supply,
Installation in incorrect orientation, causing mechanical jamming,
O-ring or seal wear, leading to leaks or inconsistent cylinder movement.
Installing an air filter and checking installation orientation and coil power will help prevent many failures.
Refrigerated Dryers
Refrigerated air dryers from 750 liters/min up to 17000 liter/min ex-stock. Larger ex overseas. Dew point 4°C under pressure. Automatic drain pre and manual drain after filters.
Screw Compressors
Screw compressors have no valves or other mechanical forces to cause imbalances unlike piston compressors.
Compressor Components
Airpower keeps universal spare parts for compressors. Pressure switches, non return valves and safety valves are universal to all compressors. Bottom entry filters/ regulators, electric motors and starters can be used for many makes of compressors.
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