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IMI Maxseal
ICO3S - High-Flow Hydraulic Solenoid Valve
Compact solenoid-operated hydraulic valve with high pressure rating and SIL safety certification.
Provides high-pressure hydraulic control in compact form with reliable, direct-acting solenoid operation.
Certified for SIL 2/3 safety systems and hazardous area environments with global approvals.
Offers versatile installation with multiple port types, mounting options, and seal materials.
The ICO3S 350B is a direct-acting, solenoid-operated hydraulic valve designed for high-pressure control applications. With 3/2 normally closed operation, it handles pressures up to 350 bar and supports water glycol and mineral oil media. The valve features low power consumption and high flow capability in a compact, corrosion-resistant 316L stainless steel body. Available in 1/4" NPT, G1/4, or manifold mount configurations, it offers flexibility for system integration. The ICO3S is certified for use in hazardous areas (ATEX, IECEx) and meets SIL 2 (1oo1) and SIL 3 (1oo2) safety standards, making it ideal for critical hydraulic control systems.
Key features
3/2 normally closed configuration
Pressure range: 50–350 bar
Cv 0.028 (Kv 0.4)
Port options: 1/4” NPT, G1/4, manifold
Direct solenoid actuation
Stainless steel 316L body
NBR or FPM seals
IP66 / NEMA 4X rated
SIL 2 / SIL 3 certified
ATEX, IECEx, CSA, and other global approvals
Specifications
Media
Hydraulic
Body Material
Stainless Steel 316L
Seal Material
NBR
FKM
Configuration
2/2 Energise to Open
2/2 Energise to Close
3/2 Energise to Open
3/2 Energise to Close
Operating Pressure (bar)
50 to 350
Port Size (")
0.25 to 0.375
Port Options
ISO G
NPT
Manifold
Ambient Temperature (°C)
-55 to 90
Voltage
12V DC
24V DC
48/50V DC (48V)
110V DC
125V DC
50V AC
110V AC
Power Consumption (W)
1.0 to 3.0
Certification
ATEX
IECEx
FM
CSA
IN-METRO
NEPSI
CCOE
KOSHA
Japan (ISHL)
SIL2
SIL3
NEMA 4X
IP66
Ex Protection Concept
Ex d
Ex mbe
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