Description
1/8" & 1/4" 300 Bar Fire Suppression Solenoid Valve – EN52052 / EN52054
The ERA SIB EN52052 and EN52054 are specialist high-pressure solenoid valves for automated fire suppression and fire extinguishing systems, designed for the control of CO₂, nitrogen, Inergen and compatible fire suppression gases.
Featuring a 2/2 way normally closed, direct-acting design with manual override, the valves operate from zero differential pressure through to 300 Bar, providing positive electrical control without requiring a minimum inlet pressure. The manufacturer specifically identifies the EN52052 / EN52054 as direct-operated solenoid valves for fire fighting systems.
Available with 1/8" or 1/4" BSP connections, the valves combine stainless steel construction, PTFE + EPDM sealing, a 0.7mm orifice and fast switching in a compact design intended for demanding high-pressure fire protection installations.
Valve Function & Operation
Function: 2/2 way normally closed
Operation: Direct acting
Manual override: Included
The EN52052 / EN52054 remains closed when de-energised and opens when the solenoid is energised.
Because the valve is direct acting, operation does not depend upon pressure differential across the valve. This allows operation from 0 Bar through to 300 Bar, making it suitable for high-pressure stored-gas fire suppression systems.
A manual override is incorporated into the valve, providing a mechanical method of operating the valve when required.
Port Sizes & Connections
EN52052
1/8" BSP
EN52054
1/4" BSP
Optional connection:
1/4" NPT
Pressure & Performance
Operating pressure: 0 to 300 Bar
Orifice: 0.7mm
Flow: 0.175 L/min
Opening time: 30ms maximum
Closing time: 30ms maximum
Maximum media viscosity: 40 cSt
Mounting position: Any position
Weight including coil: Approximately 450g
Construction & Materials
Body: Stainless steel
Valve tube: Stainless steel
Internal components: Stainless steel
Seals and gaskets: PTFE + EPDM
Coil encapsulation: Moulded resin
The stainless steel body, tube and internal construction together with PTFE + EPDM sealing are specified for both valve sizes.
Fire Suppression Media
Designed for automated fire extinguishing systems using compatible extinguishing gases including:
✓ CO₂
✓ Nitrogen
✓ Inergen
✓ FM200
✓ Halo N / compatible clean-agent systems
Final media compatibility should always be confirmed against the system extinguishing agent, operating pressure and PTFE / EPDM sealing materials.
Temperature Range
Maximum media temperature: +80°C
Ambient temperature: -20°C to +50°C
Maximum viscosity: 40 cSt
Coil & Electrical
Standard solenoid operator:
100% continuous duty
Class F insulation
IP65 protection with connector
DIN 43650A electrical connection
Voltage Options
AC 50/60Hz:
✓ 24VAC
✓ 48VAC
✓ 110VAC
✓ 230VAC
DC:
✓ 12VDC
✓ 24VDC
✓ 48VDC
✓ 110VDC
Voltage tolerance: -10% / +15%
Hazardous Area Option
An optional explosion-proof enclosure is available for hazardous-area installations.
ATEX marking:
ATEX II 2 G/D EEx d IIC T6
Protection: IP65
Specified ATEX ambient range: -20°C to +40°C
Manual Override
A key feature of the EN52052 / EN52054 is the integrated manual override.
This allows mechanical valve operation independently of the electrical solenoid and is specifically incorporated into the fire-fighting valve design.
Typical Applications
✓ Automated Fire Suppression Systems
✓ Fire Extinguishing Systems
✓ CO₂ Fire Suppression Systems
✓ Nitrogen Fire Suppression Systems
✓ Inergen Fire Suppression Systems
✓ FM200 Fire Suppression Systems
✓ High-Pressure Gas Control
✓ Fire Protection Equipment
✓ Industrial Fire Safety Systems
✓ OEM Fire Suppression Equipment
✓ Hazardous Area Installations
Why Choose the EN52052 / EN52054?
The EN52052 and EN52054 are not simply general-purpose high-pressure solenoid valves. They are specifically designed as direct-operated solenoid valves for fire fighting systems.
Their combination of 0–300 Bar operation, zero pressure differential, normally closed failsafe function, manual override, stainless steel construction and PTFE + EPDM seals makes them particularly suitable for high-pressure gaseous fire suppression equipment.
The compact 0.7mm direct-acting design also provides rapid operation, with opening and closing times specified at 30 milliseconds maximum.
Repair & Maintenance
Replacement components are available for servicing the valve, including:
✓ Replacement solenoid coil
✓ Complete plunger assembly
✓ Replacement O-rings / seals
Ordering Information
Select the required valve size and operating voltage:
EN52052 – 1/8" BSP
EN52054 – 1/4" BSP
Standard and alternative AC/DC voltages are available, together with optional NPT connection and ATEX explosion-proof configuration.
Please contact us for quantity price reductions or assistance selecting the correct valve configuration for your fire suppression system.
Related Products & Categories
High Pressure Solenoid Valves
ERA-SIB Solenoid Valve Range
