Pneumatic Solenoid Valve & Air Solenoid Valve – High-Performance Solutions
What is a Pneumatic Valve?
Pneumatic solenoid valves are electromechanical components that regulate the flow of compressed air or inert gases within automation systems. Engineered for fast and remote operation, these valves are essential for controlling pneumatic actuators, cylinders, and other motion-driven equipment.
Rotex Pneumatic Solenoid Valve – Overview
Rotex pneumatic solenoid valves are designed for long operational life, seamless sealing performance, and reliable switching, even in high-frequency or demanding environments. Valves are built using corrosion-resistant materials and tested for performance under varying pressure and temperature conditions. Precision engineering ensures durable, reliable performance, supporting efficient and uninterrupted operation in automation systems.
How Rotex Pneumatic Solenoid Valves Work?
Each Rotex pneumatic solenoid valve consists of an electromagnetic coil that, when energized, shifts an internal plunger to open or close the flow path. This enables directional control of air, facilitating linear or rotary motion in various automation applications.
Rotex offers direct-acting and pilot-operated models to suit different system requirements and performance demands.
Explore the Diverse Rotex Pneumatic Solenoid Valve Ranges
Rotex Direct Acting Solenoid Valves
Rotex Direct Acting Solenoid valves operate without requiring a minimum pressure differential. The Rotex team has engineered them with a non-sliding internal structure and seamless flow path that reduces wear and supporting longer valve life. The valve directly moves the internal sealing component, making them ideal for low-pressure systems and precise control applications. These valves provide bubble-tight shutoff even under demanding conditions.
Key Highlights
• Direct Acting – No pressure differential required
• Positive Sealing – Reliable shutoff against overpressure
• Non-Sliding Parts – Reduces wear, supports longer life
• High Flow Rate – Enabled by a clear flow path
Rotex Pilot Operated Solenoid Valves
Rotex Pilot Operated Solenoid valve design ensures minimal wear and tear, energy efficiency, and reliable control even at medium to high pressures, making them highly efficient for continuous and challenging conditions. These valves consist of a floating poppet and cushioned sealing. When the solenoid is energized, a small pilot orifice opens first, allowing pressure to shift a larger diaphragm or piston, which then opens or closes the main flow path. For applications involving larger orifice sizes, Rotex recommends pilot-operated valves over high-watt direct-acting valves. This helps avoid high inrush currents typically caused by the longer stroke and greater force required in direct-acting valves with large orifices.
Key Highlights
• Pilot Operated Poppet: Energy-efficient flow switching
• Floating Seal Design: Reduces friction, extends service life
• Operational Speed: Up to 600 cycles/min
Rotex Inline Pilot Operated Valves (5/2)
Particularly designed for actuator control, these valves feature compact inline construction with internal pilot operation. They are often used in distributed control cabinets where space is limited, enabling fast response and reliable direction change for double-acting actuators.
Key Features
• Inline Poppet Construction: For precise and fast flow changes
• Internal Pilot: No external air required
• Space-Saving Design: For cabinet or panel integration
• Pressure Range: 2–10 bar
Rotex Redundant Solenoid Valves
Rotex Redundant Solenoid Valves are specially engineered for critical safety functions, such as emergency shutdown (ESD). These valves are built with redundant operator mechanisms in a single valve block, offering fail-safe performance that minimizes the risk of unplanned shutdowns, loss of control, and enhanced safety—reducing human risk.
- Redundant Operator Configuration: Independent valve operating components arranged in single-block architecture
- Non-sliding parts: Minimized wear and internal friction
- Bubble-tight sealing: Prevents leakage and ensures safe shutoff
- Single Block Body: Eliminates interconnecting leak points
What Makes Rotex Pneumatic Solenoid Valves a Smarter Choice
- Corrosion-Resistant: Ideal for marine, offshore, and chemical environments. Made with SS316 or SS316L bodies and enclosures, these valves withstand aggressive chemicals, saltwater, and washdowns while maintaining full operational integrity.
- Reduced Wear & Tear: Non-sliding internals for reduced wear and long operational life
- Reliable Shutoff: Positive sealing for reliable shutoff, even under overpressure
- Multiple Options for Material: Wide material options including anodized aluminium, brass, and stainless steel
- Built for Safety –Explosion-Proof Performance: Designed with IP67 ingress protection and explosion-proof options for enhanced safety.
- Globally Recognized Certifications: Certified by UL, cUL, INMETRO, CUTR, PESO, and more
- Engineered for Both Safe and Hazardous Zones: Configurations available for both standard and hazardous locations
Know Why Rotex Pneumatic Solenoid Valves Are Preferred by Leading Automation Experts and Global Manufacturers
Guided by our motto, Engineering for the Future, Rotex is committed to setting new standards in process automation. Rotex pneumatic solenoid valves are trusted by OEMs, engineers, and plant managers worldwide, recognized for their precision, robustness, seamless performance, and dependability—even in the most demanding conditions. Each Rotex valve exemplifies our dedication to enduring reliability, superior quality, and cutting-edge engineering.
Unlock unmatched precision and reliability with Rotex. Explore our advanced fluid control solutions now and take your automation to the next level.