Description
M5 5/2 Way Double Solenoid Pneumatic Valve – PU521D
The PU521D is a compact M5 5/2 way double solenoid pneumatic valve designed for reliable directional control of small double-acting pneumatic cylinders and air actuators. Combining a lightweight anodised aluminium body with an efficient internal pilot design, it delivers dependable operation, low power consumption and fast response for OEM machinery, compact automation equipment and miniature pneumatic control systems.
Featuring dual solenoids with manual override, IP65 protection, multiple voltage options and optional manifold mounting, the PU521 Series is ideal where installation space is limited but reliable pneumatic performance is essential.
Why Choose the PU521 Series?
✓ Ultra-compact 15mm body design
✓ Reliable 5/2 directional control
✓ Internal pilot operation
✓ Double solenoid (bistable) operation
✓ Manual override fitted as standard
✓ Low power 2.5 Watt coils
✓ IP65 protection
✓ 100% continuous duty rated
✓ DIN43650C or flying lead coil options
✓ Individual or manifold mounting
✓ High flow for compact valve size
✓ Proven industrial reliability
Valve Specification
Function: 5/2 way double solenoid
Operation: Internal pilot
Port size: M5
Optional mounting: Base mounted (B type)
Effective orifice: 3.5mm²
Operating pressure: 1 to 8 Bar
Maximum working pressure: 10 Bar
Proof pressure: 9 Bar
Cycle rate: Up to 120 cycles per minute
Media: Compressed air and inert gases
Media temperature: -10°C to +50°C
Body: Anodised aluminium alloy
Seals: NBR
Mounting position: Any position
Coil & Electrical Specification
Power consumption: 2 × 2.5 Watts
Protection rating: IP65
Insulation class: Class F
Duty cycle: 100% continuous duty
Connection options:
300mm flying lead wire (standard)
DIN43650C connector (optional)
Voltage options:
12V DC
24V DC
24V AC
110V AC
230V AC
Voltage tolerance: ±10%
Double Solenoid Operation
The PU521D uses two independently energised solenoids.
Power applied to one coil shifts the valve to one operating position.
Power applied to the opposite coil returns the valve to the alternate position.
The valve remains in its last selected position after power is removed, making it ideal for applications where the valve must maintain position during power interruption.
Manual override allows easy commissioning, maintenance and system testing without electrical power.
Mounting Options
Body ported valve
Base mounted valve (B type)
MF521 manifold systems
Suitable for compact manifold assemblies with multiple valve stations.
Typical Applications
Miniature pneumatic cylinders
Compact automation equipment
High-speed pneumatic control
OEM machinery
Pick-and-place systems
Packaging machinery
Laboratory equipment
Medical equipment
Instrumentation
Control panels
General compressed air systems
Quality & Reliability
Every PU521 valve is manufactured using a precision-machined anodised aluminium body and quality-tested before dispatch to ensure reliable operation and long service life. The compact 15mm design provides a high flow capacity of approximately 0.25 Cv while maintaining low pilot air consumption and rapid response, making it ideal for modern compact pneumatic systems.
Technical Information
Protection: IP65
Insulation Class: Class F
Maximum working pressure: 10 Bar
Proof pressure: 9 Bar
Cycle rate: 120 cycles per minute
HS Code: 8481201000
Why Buy From Solenoid Valve World?
✓ Large UK stocks available
✓ Technical support from pneumatic specialists
✓ Spare coils and connectors available
✓ Manifold systems available
✓ Free next working day UK delivery
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