Description
1/2" Brass Latching Solenoid Valve – Shako LPU22504A
The Shako LPU22504A is a 1/2" 2/2 way latching brass solenoid valve designed for low-power and battery-operated fluid control applications where the valve must remain open or closed without continuous electrical power.
Unlike a conventional continuously energised solenoid valve, the LPU225 uses a short electrical pulse to change position. Once switched, the valve remains in its last position without power, significantly reducing electrical consumption and coil heating.
The valve is servo / pressure assisted, requiring a minimum 0.5 Bar pressure differential, and is suitable for air, water, gas, light oils and other compatible fluids up to 50 cSt.
Latching Operation
The LPU22504A uses a 10W pulse-operated latching coil. Electrical power is required only momentarily to change the valve position.
Stay Closed: -ve Terminal 1 / +ve Terminal 2
Stay Open: +ve Terminal 1 / -ve Terminal 2
Pulse Duration: 5–20 milliseconds
The valve then maintains the selected open or closed position without continuous coil power. lpu225-14
This makes it particularly suitable for battery-powered equipment, remote systems and applications where reducing electrical consumption and coil heating is important.
Pressure & Flow
Port: 1/2" BSP Female
Optional Thread: 1/2" NPT
Operation: 2 Way Servo Assisted
Minimum Differential Pressure: 0.5 Bar
Maximum Differential Pressure: 10 Bar
Maximum Working Pressure: 15 Bar
Orifice: 13mm
Kv Flow Factor: 40 L/min based on water with 1 Bar pressure drop. lpu225-14
Construction
Body: Forged Brass SS41
Tube & Internals: Stainless Steel
Standard Seal: NBR
Optional Seals: FKM, EPDM or HNBR
Coil: Thermoset Resin Moulded
Mounting Position: Coil Upright lpu225-14
Seal & Temperature Options
NBR: Maximum media temperature +80°C
FKM: Maximum media temperature +130°C
EPDM: Maximum media temperature +160°C
HNBR: Maximum media temperature +140°C
Ambient Temperature: -20°C to +60°C
The correct seal material should always be selected according to the media and operating temperature.
Electrical Specification
Coil: Shako 22003L
Coil Power: 10W Pulse
Voltage Range: 3–9VDC or 9–15VDC
Pulse Duration: 5–20ms
Insulation Class: F, 155°C
Protection: IP65 with Connector
Electrical Connection: 3-Spade DIN 43650A
Connector: Included lpu225-14
Suitable Media
✓ Air
✓ Water
✓ Gas
✓ Light Oil
✓ Compatible Fluids up to 50 cSt
Always confirm compatibility with the selected seal material.
Typical Applications
✓ Battery-Powered Fluid Control
✓ Remote Water Control
✓ Irrigation Systems
✓ Water Treatment Equipment
✓ Pneumatic Systems
✓ Mobile Equipment
✓ Low-Power Automation
✓ Position Retention Applications
Technical Specification
Manufacturer: Shako Co., Ltd.
Series: LPU225
Model: LPU22504A
Function: 2/2 Way Latching
Operation: Servo / Pressure Assisted
Port: 1/2" BSP Female
Optional Thread: NPT
Pressure Differential: 0.5–10 Bar
Maximum Working Pressure: 15 Bar
Orifice: 13mm
Kv: 40 L/min
Media Viscosity: 50 cSt Maximum
Opening / Closing Time: 50ms Maximum
Body: Forged Brass SS41
Internals: Stainless Steel
Seal Options: NBR, FKM, EPDM, HNBR
Coil: 22003L
Coil Power: 10W Pulse
Voltage Range: 3–9VDC or 9–15VDC
Pulse Duration: 5–20ms
Protection: IP65 with DIN Connector
Mounting: Coil Upright
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