1/4" 5/2 Way Single Solenoid Pneumatic Valve – BM520S
The BM520S is a high-flow 1/4" 5/2 way single solenoid pneumatic valve designed for reliable directional control of double-acting pneumatic cylinders and air actuators.
Its compact 22mm anodised aluminium body, internal pilot operation and lockable manual override provide dependable pneumatic switching for industrial automation, OEM machinery, pneumatic control panels and general compressed air systems.
Key Features
✓ 1/4" BSP pneumatic ports
✓ High-flow 22mm valve design
✓ 5/2 single solenoid operation
✓ Internal pilot operation
✓ 18mm² effective flow area
✓ 2 to 8 Bar operating pressure
✓ Lockable manual override
✓ Low power 4.5 Watt coil
✓ IP65 protection
✓ Class F coil insulation
✓ 100% continuous duty
✓ DIN43650B or flying leads
✓ Body or manifold mounting
✓ Optional ATEX Ex m coil
✓ Spare coils available
✓ Large UK stocks available
✓ Free next working day UK delivery
Valve Specification
Function: 5/2 way single solenoid
Operation: Internal pilot
Port size: 1/4" BSP
Optional threads: NPT or Rc
Exhaust ports: 1/8" BSP
Valve width: 22mm
Effective orifice: 18mm²
Operating pressure: 2 to 8 Bar
Proof pressure: 10 Bar
Body: Anodised aluminium alloy
Seals: NBR
Media: Compressed air and inert gases
Media temperature: -10°C to +50°C
Manual override: Lockable
Mounting position: Any position
Coil & Electrical Specification
Power consumption: 4.5 Watts
Protection rating: IP65
Insulation class: Class F
Duty cycle: 100% continuous duty
Connection options:
DIN43650B connector (standard)
300mm flying lead wire (optional)
Voltage Options
12V DC
24V DC
48V DC
110V DC
220V DC
12V AC
24V AC
48V AC
110V AC
230V AC 50/60Hz
ATEX / IECEx Coil Option
Optional Nass Magnet System 8/22 explosion-protected solenoid operator available for hazardous area applications.
✓ Ex mb IIC T4 Gb
✓ Ex mb tb IIIC T130°C Db
✓ Zone 1 gas and Zone 21 dust
✓ ATEX Category 2G / 2D
✓ Gas Group IIC / Dust Group IIIC
✓ Protection rating: IP65
✓ 100% continuous duty
✓ Ambient: -20°C to +50°C
✓ ATEX: PTB 00 ATEX 2001 X
✓ IECEx: IECEx PTB 05.0006X
✓ ATEX Directive: 2014/34/EU
Single Solenoid Operation
When electrical power is applied, the solenoid operates the internal pilot mechanism and shifts the valve spool to its operating position.
When power is removed, the internal spring returns the valve to its normal position.
The lockable manual override allows the valve to be operated during commissioning, machine setup, maintenance and functional testing without electrical power.
Mounting Options
Individual body-mounted installation
MF520 manifold systems
Multi-station manifold assemblies are available for compact pneumatic control installations.
Typical Applications
Double-acting pneumatic cylinders
Pneumatic actuators
Industrial automation
OEM machinery
Pneumatic control panels
Packaging machinery
Material handling equipment
Assembly machinery
Process control systems
General compressed air installations
Quality & Reliability
The BM520S combines a compact 22mm anodised aluminium body with high-flow internal pilot operation and a lockable manual override for dependable long-term pneumatic control.
Its compact construction and manifold mounting capability make it particularly suitable for OEM machinery and multi-valve pneumatic control systems where installation space is limited.
Pressure:
1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar
